Accessories

The BlackTrack replaces the Skyliner (front wheel support) and enables you to steer freely in the Tacx Trainer software 4, Advanced. The front wheel of the bike is placed on a turntable so that you can steer to the left and the right. This allows you to choose where to ride when you are training in the virtual worlds. The BlackTrack communicates wirelessly with the computer via ANT+. Rubber Caps on the bottom prevent sliding and reduce noise. This steering frame is foldable. lightweight, and easy to store. The BlackTrack is suitable for the Tacx Trainer software (Windows PC) and can communicate with ANT+ trainers and interactive Smart trainers: - T1980 Bushido (ANT+) - T2020 i-Genius - T2050 Tacx IRONMAN trainer - T2060 Tacx IRONMAN Smart - T2080 Genius Smart with Upgrade Smart - T2170 i-Vortex - T2180 Vortex Smart with Upgrade Smart - T2240 Flow Smart with Upgrade Smart - T2780 Bushido Smart with Upgrade Smart

For year-round training and a fully interactive indoor cycling experience, the Flow Smart trainer offers everything you need. Its wheel-on design allows for easy setup and storage. It even connects to your favorite apps, such as Zwift, Tacx, and TrainerRoad. - Wheel-on design sets up with two easy clicks and securely locks in place - Measures speed, power, and cadence - Virtually silent flywheel lets you ride without disturbing others - Works with popular third-party training apps such as Zwift and Tacx - Train with realistically simulated inclines up to a 7% gradient FEATURES Type of trainer: Interactive Smart trainer with electric brake Magnets: 6 Magnets Transmission: Roller, 30mm Electrical requirements: 110-240 Volt Power indicator: None Connection indicator (ANT/BT): None Firmware upgradable: Yes Suitable bikes: Race, Tri, & MTB; if necessary with axle skewer; 29" wheel with Tacx trainer tire Suitable axles: Width of rear fork: Race 130mm, MTB 135mm. Adapters for other widths also available Supplied with: Front wheel support, Quick release for road bikes and mountain bikes (5mm) SPECIFICATIONS Max. power (40 km/h): 800 Watt Max. incline: 6% Simulation of descent: No Max. torque: 15.3 Nm Max. brake force: 45 N Flywheel: 1.6 kg Mass inertia: 11.8kg (26.0 lbs) Calibration: Spin down Footprint (lxw): 675 × 650 mm (26.6 × 25.6 in) Height: 410 mm (16.1 in) Dimensions when folded: 565 × 410 × 245 mm (22.2 × 16.1 × 9.65 in) Weight: 9.41 kg (20.7 lbs) Article number: T2240 DATA OUTPUT AND CONTROL Wireless communication: ANT+ FE-C, Bluetooth Smart open Control by: ANT+FE-C bike computers, Connect to computer via ANT+antenna, Smartphone, Tablet, Stand alone Output: Cadence , Power , Speed Read out on: Bike computer, Computer with ANT+ antenna, Smartphone, Sports watch, Tablet Error Tolerance: <5%

Take your ride inside with Tacx Boost. You won't need external power to use this trainer, thanks to a forceful magnetic brake that allows you to directly apply resistance or lighten it. Resistance can be controlled with a lever on the handlebar. The setup is easy—with just two simple clicks you mount your bike and you are ready to ride. SIMPLE SETUP With just two simple clicks, you'll be ready to ride. SMALL BUT STABLE This indoor trainer has a small footprint, 675 x 650 mm (26.6" x 25.6"), but provides a sturdy ride. EASY TO STORE Multifunctional front wheel support serves as a handle to carry the trainer and ensures a natural cycling position. MAGNETIC BRAKE You won't need external power to use this trainer, thanks to a forceful magnetic brake that allows you to directly apply resistance or lighten it. RESISTANCE CONTROL A simple lever on your handlebar lets you control the resistance; 10 levels, up to 1,050 watts. REALISTIC RIDE FEEL An actual flywheel generates a realistic and smooth pedal stroke. SMOOTH AND QUIET The closed resistance unit reduces noise and makes for a smoother ride. HOW FAR AND HOW FAST Add a speed sensor (sold separately) to track how far and how fast you're riding and train with some of your favorite apps. FEATURES - Magnets: 2x8 Permanent ferrite magnets - Transmission: Roller, 30 mm - Electrical requirements: No voltage required - Power indicator: None - Connection indicator (ANT/BT): None - Firmware upgradable: No - Suitable bikes: Road, Tri, & MTB with skewer quick release - Supplied with: Front wheel support, quick release for road bikes and mountain bikes (5mm) SPECIFICATIONS - Max. power (40 km/h): 1050 Watt - Simulation of descent: No - Max. torque: 17 Nm - Max. brake force: 50 N - Flywheel: Actual of 1.6 kg - Mass inertia: 9.18 kg (20.2 lbs) - Footprint (LxW): 675 x 650 mm (26.6 x 25.6 in) - Height 410 mm (16.1 in) - Dimensions when folded 565 x 410 x 245 mm (22.2 x 16.1 x 9.65 in) - Weight 8.53 kg (18.8 lbs)

You're lookin' at the Surly Big Dummy Bag Version 2.0. Just like the original, it's designed to work with Dummy-style rail systems found on cargo bikes like our Big Easy, Big Dummy, and Big Fat Dummy. We've made it easier to install, simpler to use, and refined its size and shape to better suit the stuff we haul most often. The sequel is slightly smaller, but you can still cram two full grocery bags in there on shopping day. Three if you like your potato chips pulverized. The Big Dummy Bag features an expandable cargo flap and side panels that can lie flat or cinch up to accommodate loads of varying dimensions. It also has two sizeable inner pockets with a dedicated divider so you can keep your legal documents tidy. It's furnished with adjustable daisy chains, straps, and buckles to help you secure bulky shit that may not fit otherwise, as well as three stainless steel drainage ports so you can hose it out after hauling your compost to the dump. Lastly, the bag's main body is tough 1680D nylon and its liner is 400D nylon. The material is also bluesign® Approved. So are the buckles and other hardware. This means the materials are sustainably produced to have the lowest possible impact on humanoids and our environment. - 22.5L capacity per bag

Some of you people just can't get enough hauling done with your Big Dummy or your Surly trailer. Well, nutball cargo haulers, here is your solution: The Big Dumb Trailer Hitch. This handy piece replaces the wheel yoke of your Surly Bill or Ted trailer and inserts into the horizontal tubes on the non-drive side of your Surly Big Dummy cargo bike, thereby making it possible to haul your trailer using your cargo bike. Wow. I'm not really sure what to say here. Good for you, I guess? I hope your hemorrhoid surgery goes really well. Note: Big Dummy Hitch is not compatible with the Big Fat Dummy

The Surly Kid Corral is just that: A Corral where you can store your kids when they’re riding on the deck of your Big Easy, Big Dummy, or Big Fat Dummy. Designed to be semi-modular, the corral offers up different configurations to fit your unique human-corralling needs. As your family grows in size or number, you can adjust the Kid Corral to give your tiny humans more or less freedom. The Kid Corral Kit comes equipped with a full safety rail system, two soft Deck Pads, and a Deck Bar comfortable enough for tiny paws. As an added bonus, the Kid Corral system is tested and compatible with the Thule Yepp Maxi child seat, for riders of smaller proportions. - Semi-modular system is designed to easily add or remove sections of the corral rails to fit your passenger safety needs - Kit includes the full safety rail system, two soft Deck Pads, Deck Bar and required mounting hardware - The Kid Corral system is also compatible with the Thule Yepp Maxi child seat, for riders of smaller proportions

Dubbed 'Straggle-Check' frame bags, these bags are designed to fit both 700c and 650b Straggler and 700c Cross Check frames. Size up one size on your bag if you've got a 650b Straggler frame and voila, it fits. These are handmade by Revelate Designs in the U.S., made of Dimension Polyant VX 21 polyurethane coated fabric. It's durable, rip resistant, tightly woven and laminated to make it highly water resistant but not fully waterproof…. Revelate advises using stuff sacks inside (such as the one in which our bags are packaged) if you risk riding in extended downpours or underwater. Surly's Straggle-Check frame bags (as well as their mountain bags) are now using a ladder strap system, which allows greater flexibility in how you attach the bag to your frame. The ladder straps let you customize the fit and placement of the mounting straps so if you have some weird contraption clamped to your frame tubes like a chain keeper, cable pulley, or some trinket grandma gave you, it won't interfere with the mounting straps on the frame bag. They're also including foam bumpers for the mounting straps to minimize thread abrasion to the bag and attachment points Quality YKK brand water resistant zippers – with an improved, water resistant zipper 'garage' – control compartment access and help keep the weather out. Zippers are sewn with a stretch panel to relieve stress on the zipper as well. Stress even kills zippers. The large main compartment has a flexible divider inside, and there's a hydration port to make sure your whistle stays wet. There's also a compartment suitable for smaller items you'll access relatively often, like your map, phone, hard boiled eggs, uncontained pudding, marbles for playing marbles, your dugout, that ring you found that makes you disappear when you put it on, or whathaveyou. Frame bags such as this are light and reasonably voluminous. They are stable because they center weight low between your wheels and body, and they go places where racks and panniers are often troublesome, like singletrack. Note: due to the rough texture of the mounting straps, prolonged use may lead to scratched or worn paint. If you're worried about keeping everything looking pristine you probably ought to look for some other type of bag, or figure a way to protect the paint, such as duct tape, or tatting a top tube doily - for example.

- Fits 16"-29" wheels with or without tire - Includes thru-axle hub adapters - Can be easily bench mounted

- Full alloy forged floor pump - Laser etched graphics - Full Oil Slick finish - Oversized alloy piston shaft-Smooth and quiet operation - Patented auto-switching head fits presta and schrader valves

Now, thanks to Sunlite's Cargo Trailer, you can turn your bike into a human-powered pickup truck! The tubular, powder-coated steel frame and heavy-duty nylon base are durable enough to carry up to 120 pounds. 9-inch deep sides ensure that all your items stay securely in place throughout your ride. With the axle mount arm, you'll be able to easily connect the trailer to your bike and get on your way. This handy trailer includes smooth-rolling, 20-inch aluminum wheels with quick release for easy maintenance.

Give your little one a comfortable seat where they can enjoy the view as you pedal them around town. A 3-point safety harness with protective chest pad keeps them secure over bumps and through turns and an adjustable headrest allows for helmet clearance. The carrier mounts on an included alloy rear rack and has a quick release feature for easy on and off. - Quick release - Mounts on included alloy rear rack - Adjustable headrest for helmet clearance - Durable hi-impact polypropylene structure - Soft, washable, shock-absorbing seat pad - 3-point safety harness with protective chest pad - Two convenient in-seat storage compartments - Adjustable footrests w/straps - Grab bar w/padded grips - 40 lb weight limit - Brake Compatibility: Disc

Hook your bike up to Sunlite's F1 Trainer w/Remote and ride whenever you want, regardless of weather, daylight or schedule issues. It features a heavy-duty steel frame for a stable base when you're cranking on the pedals and a quiet magnetic resistance unit for a real-world feel. The remote lever attaches to your handlebar for easy resistance adjustment. Plus, this trainer includes an easy-to-use steel quick-release lever.

Hook your bike up to Sunlite's F2 Trainer and ride whenever you want, regardless of weather, daylight or schedule issues. It features a heavy-duty steel frame for a stable base when you're cranking on the pedals and a quiet magnetic resistance unit for a real-world feel.

- Professional quality folding repair stand - Telescoping center pole and folding base make it easy to transport and store - 360-degree clamp rotation with quick release lever - Includes: Work Tray

- The perfect trailer for taking your favorite pet along for the ride - Steel folding frame with 16-inch quick release wheels - 600D polyester canopy with vented window - PVC slip-proof reinforcement on foot rest - Attaches to rear axle via trailer hitch mount (Not pictured) - Included dog leash keeps pets safe and in the trailer - 66lb weight limit

Hitch Sunlite's Trailer Tot to your bike and take your child to the local park, the pool, and the library. For convenient storage in your car or garage, its protective steel frame folds flat. If the weather turns sour, you can drop the front of the canopy so your little one stays dry. The Trailer Tot easily connects to your bike's axle and its quick-release 16-inch wheels roll smoothly along the pavement behind you. Clear canopy windows offer great views and reflective strips ensure you'll be seen too. There's even a pair of side compartments for those all-important snacks.

With specifications more akin to a suspension fork than a traditional pump, the SuperPista combines a full metal shock piston design with the classic Italian leather plunger washer and self-lubricating linear bearings to create the highest-efficiency, smoothest-running SuperPista to date. Efficient, accurate, durable are the trademarks of the SuperPista floor pump. - High-mount digital gauge accurate to 1% with backlight, adjustable pressure alarm, and adjustable pressure units (uses two CR2032 batteries) - Full-size Ash wood handle with a secure carrier strap - High-efficiency 28mm SILCA leather piston assembly - Brass air check-valve assembly - Alloy barrel with plated steel piston shaft - Long filler hose with integrated Schrader chuck - Hiro locking-lever Presta chuck with a magnetic dock - Rated to 220psi

While "good enough" gets the job done, there is beauty in going above and beyond. The SILCA SuperPista Ultimate is the pinnacle of what a floor pump can achieve. From the highly accurate analog gauge to the magnetic HIRO dock to the lathe-turned Purpleheart wood handle, this floor pump embodies the SILCA mantra of passion, precision, performance. - Full Stainless Steel, Aluminum, Wood and Brass Construction—NO PLASTICS - SILCA Lifetime PLUS Shield Warranty—the most comprehensive warranty in all of Cycling - Ergonomic Purpleheart wood and Investment Cast Stainless Steel Handle - Full IGUS Linear Bearings for Ultimate Smoothness - Thick Full Grain Leather Piston Gasket—More Efficient and Durable than Rubber! - 1% Gauge Accuracy allows for Ultimate Ride Tuning

The Sigma ROX 11.1 EVO GPS bike computer is your perfect training partner for indoor and outdoor bike training. Its numerous functions support and guide bikers reliably so that they can have even greater enjoyment of the freedom and delight bicycling provides. The 55-g bike computer wins over customers with its compact, modern design and simple, user-friendly operation. The five large buttons are easily accessible, so the bike computer is extremely easy to use even when you're wearing gloves. Navigation information and ride data can be read very easily on the 1.77-inch transmissive color display thanks to its outstanding contrast. Use the free SIGMA RIDE app to track your current ride data and analyze them at any time. - The bike computer's 150 functions support and guide athletes during training and leisure, delivering all data reliably and in real time - The scope of function includes speed and distance tracking with GPS, barometric altitude measurement and navigation with Track or komoot, and compatibility with e-bikes and smart trainers - The integrated Crash Alert feature uses an app to inform your emergency contacts if you fall off your bike - Smart notifications inform the rider of incoming calls and messages during the ride - Four of up to 20 possible sport profiles are already pre-installed on the ROX 11.1 EVO, and bikers can also create their own sport profile and use the ROX 11.1 on different bikes - Six different training views with one to six data fields can be highlighted in color with the SIGMA RIDE app, with a configuration tailored entirely individually - Up to 100 hours of riding time can be stored on the ROX 11.1 EVO; ride data can thus be called up quickly at any time on the ROX 11.1 EVO, the SIGMA RIDE app or, after training, on your PC or MAC in the SIGMA DATA CENTER - Navigation information and ride data can be read very easily on the 1.77-inch transmissive color display thanks to its outstanding contrast; the display is continuously lit and adjusts automatically to various lighting conditions thanks to its ambient light sensor

A Killer Training Combo What happens when you pair a speed sensor with the #1 selling bike trainer in the USA? You get a combo that’s ready for any virtual—or non-virtual—training ride. It’s the ideal setup for budget-conscious athletes looking to join fun, virtual communities, like Rouvy and Zwift, without a traditional smart trainer. Simply install the magnetless speed sensor on the rear wheel of your bike, mount your bike to the solid Fluid2 trainer with our innovative club knob, connect to your virtual training app of choice via Bluetooth or ANT+, and voilà! - you’re ready to sweat. Product Features - Fluid resistance unit provides a quiet and consistent ride. - Progressive resistance offers the widest resistance range and road-like feel. - Included speed sensor connects you with Rouvy, Zwift and other indoor cycling apps. - ANT+ USB and BlueGiga USB sold separately. - Includes one month subscription to Rouvy virtual training app In the box: - Fluid² Smart Equipped Bike Trainer - Dual-band magnetless speed sensor - Fluid² is the best-selling trainer in the USA. - Fluid resistance unit creates optimal road-like feel. - Fluid resistance unit provides a quiet and consistent ride. - Noise level at 20 mph is super quiet 64-68 decibels. - Large, individually precision-balanced flywheel allows for improved road-like feel. - Self-cooling mechanisms including a patented fan design keeps the unit performing better, longer. - Eccentric leveling feet allow for easy adjustment on uneven surfaces. - Comes on the foldable Classic frame with spring loaded, bolt-action lever. - Precision-machined alloy roller reduces tire wear and slippage. - Features clutch knob for perfect roller-to-tire tension each ride. - 2" resistance unit roller allows for 650b, 700c, 26", 27" and 29" wheel sizes – up to a 2.0 tire. - This trainer is designed to fit common road and mountain bike frames with included steel quick release skewer and has three settings for rear dropout spacing: 120mm, 130mm and 135mm. - Trainer tire recommended. - Compatible with indoor cycling apps. - Trainer is tested to the combined weight (rider and bike) of 300 lbs. - Optional thru-axle adapter available for 142x12mm and 148x12mm bikes. - ANT+ USB and BlueGiga USB sold separately. - Formerly branded as CycleOps Fluid² Smart Equipped

The Salsa EXP Series Anything Cradle is a bracket-mount handlebar roll system that holds gear in front of your handlebars without kinking your cables. This modular system is designed around our EXP Series Side-Load Dry Bag, which maintains a fixed height for loading with ease, or you can use your own dry bag. The Anything Cradle allows you to distribute your gear evenly—an essential part of any well-balanced bikepacking setup. - Kit includes Anything Cradle, Side-Load Dry Bag, EXP Series Front Pouch, and two 30" Salsa EXP Series Rubber Straps - EXP Series Anything Cradle Side-Load Dry Bag is fixed-height for easy loading - Salsa EXP Series Rubber Straps are made of non-slip TPU to hold gear securely - Works with or without EXP Series Anything Cradle Front Pouch - Anything Cradle Dry Bags feature a welded seam construction with waterproof materials and hook-and-loop straps for easier installation - Anything Cradle Front Pouch uses water-resistant fabric with welded seams for weather protection - Anything Cradle Arms are compatible with 35.0mm handlebars or 31.8mm handlebars (with included shim) - Nylon 6/6 composite cradle, 6061 forged aluminum arms - Maximum load weight: 8 lbs. (3.6kg)

The Salsa EXP Series Anything Cradle is a bracket-mount handlebar roll system that holds gear in front of your handlebars without kinking your cables. This modular system is designed around our EXP Series Top-Load Dry Bag, which maintains a fixed width for loading with ease, or you can use your own dry bag. The Anything Cradle allows you to distribute your gear evenly—an essential part of any well-balanced bikepacking setup. - Kit includes Anything Cradle, Top-Load Dry Bag, EXP Series Front Pouch, and two 30" Salsa EXP Series Rubber Straps - EXP Series Anything Cradle Top-Load Dry Bag is fixed-width for easy loading - Salsa EXP Series Rubber Straps are made of non-slip TPU to hold gear securely - Works with or without EXP Series Anything Cradle Front Pouch - Anything Cradle Dry Bags feature a welded seam construction with waterproof materials and hook-and-loop straps for easier installation - Anything Cradle Front Pouch uses water-resistant fabric with welded seams for weather protection - Anything Cradle Arms are compatible with 35.0mm handlebars or 31.8mm handlebars (with included shim) - Nylon 6/6 composite cradle, 6061 forged aluminum arms - Maximum load weight: 8 lbs. (3.6kg)

- AXS enabled for easy monitoring and firmware upgrades - Bluetooth Low Energy and ANT+ compatible - Power readings are accurate within +/-1.5% and aren't affected by climate conditions during a ride - Power balance measures left and right legs separately - Uses a common CR2032 battery that last for 200 riding hours and changes without tools - Power-upgrade compatible with the following RED and Force eTap AXS cranksets: RED 1x: 36T-46T, Force 1x: 36T-46T, Force 2x: 33/46, 35/48 - Bolt Circle Diameter (BCD): 107 BCD - Power Meter Type: ANT USB

Power every ride. We've taken the reliability, elegance, and features of Quarq's legendary crank-based power meter and dropped the barrier to entry once again. This new power meter platform is entirely contained within the DUB spindle for clean integration that fits more bikes than ever. - An elegant, integrated design - DUB-PWR spindle-based unit measures left-side power to calculate total watts - Proven Quarq reliability and accuracy - Long battery life (400+ hours) to power a season of rides - User-replaceable lithium AAA battery - DUB bottom bracket adds durability and simplicity - Waterproof (IPX7 waterproof to 1 meter for 30 minutes) - Lightweight (less than 40g heavier than standard crankset) - Wide chainline crankset for bikes with the widest gravel tires

Power every ride. We've taken the reliability, elegance, and features of Quarq's legendary crank-based power meter and dropped the barrier to entry once again. This new power meter platform is entirely contained within the DUB spindle for clean integration that fits more bikes than ever. It's invisible technology that adds minimal weight and will help you get to the finish line faster, and it can be used to upgrade any eTap AXS bike. - An elegant, integrated design - DUB-PWR spindle-based unit measures left-side power to calculate total watts - Proven Quarq reliability and accuracy - Long battery life (400+ hours) to power a season of rides - User-replaceable lithium AAA battery - DUB bottom bracket adds durability and simplicity - Waterproof (IPX7 waterproof to 1 meter for 30 minutes) - Lightweight (less than 40g heavier than standard crankset) - Simple and affordable power meter upgrade option - Right Arm/BB/Spider/Chainrings NOT INCLUDED

Power every ride. We've taken the reliability, elegance, and features of Quarq's legendary crank-based power meter and dropped the barrier to entry once again. This new power meter platform is entirely contained within the DUB spindle for clean integration that fits more bikes than ever. It's invisible technology that adds minimal weight and will help you get to the finish line faster, and it can be used to upgrade any eTap AXS bike. - An elegant, integrated design - DUB-PWR spindle-based unit measures left-side power to calculate total watts - Proven Quarq reliability and accuracy - Long battery life (400+ hours) to power a season of rides - User-replaceable lithium AAA battery - DUB bottom bracket adds durability and simplicity - Waterproof (IPX7 waterproof to 1 meter for 30 minutes) - Lightweight (less than 40g heavier than standard crankset) - Simple and affordable power meter upgrade option - Right Arm/BB/Spider/Chainrings NOT INCLUDED

Power every ride. We've taken the reliability, elegance, and features of Quarq's legendary crank-based power meter and dropped the barrier to entry once again. This new power meter platform is entirely contained within the DUB spindle for clean integration that fits more bikes than ever. - An elegant,integrated design - DUB-PWR spindle-based unit measures left-side power to calculate total watts - Proven Quarq reliability and accuracy - Long battery life (400+ hours) to power a season of rides - User-replaceable lithium AAA battery - DUB bottom bracket adds durability and simplicity - Waterproof (IPX7 waterproof to 1 meter for 30 minutes) - Lightweight (less than 40g heavier than standard crankset) - BB not included

Power every ride. We've taken the reliability, elegance, and features of Quarq's legendary crank-based power meter and dropped the barrier to entry once again. This new power meter platform is entirely contained within the DUB spindle for clean integration that fits more bikes than ever. - An elegant,integrated design - DUB-PWR spindle-based unit measures left-side power to calculate total watts - Proven Quarq reliability and accuracy - Long battery life (400+ hours) to power a season of rides - User-replaceable lithium AAA battery - DUB bottom bracket adds durability and simplicity - Waterproof (IPX7 waterproof to 1 meter for 30 minutes) - Lightweight (less than 40g heavier than standard crankset) - Wide chainline crankset for bikes with up to 700x45c or 27.5x2.1" tire widths (43/30T chainrings only) - BB not included

Power measurement is a crucial part of training, so we’ve made it as easy as possible to upgrade your Force AXS ride with Quarq technology. DUB-PWR takes the legendary reliability and accuracy of Quarq technology and inserts it into the crank spindle for clean integration that fits more bikes than ever. It’s invisible technology that adds minimal weight and will help you get to the finish line faster. FEATURES - DUB-PWR spindle-based unit measures left side power to calculate total watts - Proven Quarq reliability and accuracy - Long battery life (400+ hours) to power a season of rides - User replaceable AAA lithium battery - DUB bottom bracket adds durability and simplicity - Waterproof (IPX7 waterproof to 1 meter for 30 minutes) - Lightweight (less than 40g heavier than standard crankset)

The X0 Eagle T-Type AXS™ Wide left crankarm with Power Meter spindle provides riders with accurate, live power data delivery housed in our most advanced aluminum crankset. The power meter technology is integrated through what SRAM calls “DUB-PWR” – a unique design that elegantly houses Quarq’s reliable and accurate power measurement inside the DUB crank spindle itself. Measuring left-side power to calculate total watts, it’s subtle, lightweight, compatible with any chainring setup, and boasts unbeatable battery life. It is also compatible with the Flight Attendant system, allowing for total connectivity between all AXS™ enabled components. No-compromise, no-fuss data delivery with robustness in mind. - Innovative "DUB-PWR" design allows for lightweight, subtle Quarq power integration - Compatible with RockShox Flight Attendant - Unique, groundbreaking design integrated with one of the lightest aluminum cranksets on the market - +/-3% accuracy means you'll always know your true watts output - Long battery life provides 400+ hours of usage - Waterproof (IPX7 waterproof to 1 meter for 30 minutes - Right arm, Bottom bracket, Chainring and Spider NOT included