Parts & Accessories

Know what's coming. Ride with extra confidence with Trek CarBack Radar Rear Light. CarBack's radar helps detect rear-approaching vehicles from up to 240m and provides audio and visual alerts through paired GPS head units for increased on-bike awareness. Built with integrated best-in-class Daytime Running Lights that are visible from up to 2km away, CarBack is a must-have for every cyclist riding on shared roads. - CarBack can detect and alert riders of rear-approaching vehicles from up to 240m away - Compatible with most cycling GPS computers - Pair CarBack with the Trek Accessory app to see a vehicle's rear-approaching and passing distance on your smartphone - Designed with focus, flash, and range to be Daytime-visible from up to 2km away - Four light flash modes: Day Flash 90LM, Day Steady 25LM, Night Steady 5LM, and Night Flash 5 LM - Visible fuel gauge LEDs make it easy to see CarBack's 7+ hour battery status - IPX7 waterproof rating to confidently ride through wet conditions - Includes Quick Connect Plus rear mount and USB-C charging cable

The Shimano EW-EC300 Charging Cable is compatible with new Shimano 12-speed road Di2 systems. This cable will also recharge the Dura-Ace R9200 and Ultegra R8100 power meter cranksets. 1700mm cable length

Shimano Di2 Frame Junction Box - Frame Junction Box connects via SD50 E-tube wires to four different points: front derailleur, rear derailleur, cockpit junction box and battery mount - All Di2 components on the bicycle require the same firmware version. Using Di2 components with different firmware versions may cause malfunctions - Use Di2 system checker to update component firmware from http://e-tubeproject.shimano.com/

SRAM eTap batteries are literally a snap to remove and charge. Just flip the tool-free battery latch up and slide the battery up and out of the derailleur. Then snap the battery into the USB powered charger and connect the charger to any USB power source or A/C USB adaptor. A full charge takes just 45 minutes to complete. - Finish: Black - Compatibility: SRAM RED eTap

SRAM eTap Battery is the power source for the eTap system. The same power unit is interchangeable between front and rear derailleurs. - Up to 1000 kilometers of riding per charge - Weight: 24g - Finish: Black - Compatibility: SRAM RED eTap

Polar Pro Strap works with all Polar heart rate sensors. With a soft textile material, slip-preventing silicone dots, and a secure buckle, the strap is very comfortable to wear and stays in place even through your most intense workouts. The extra interference-preventing electrodes on the strap make it extremely sensitive to your heart’s electrical signals, providing maximum precision for heart rate readings and eliminating interference. - X-Small/Small: 51-66 cm - Large/X-Large: 65-93 cm - XXXL: 76-116 cm

Please note: This is a 2 part system! You need a patch or phone case for VACUUM to work. The best mount ever! Our VACUUM phone mount uses a unique combination of suction and magnets to securely attach your phone to your bike, your car’s dashboard, your desk or your workstation. Your phone can be easily positioned and connected to the mount through the magnetic guidance while the vacuum force keeps it securely locked. Even in the case of a strong impact, the vacuum pressure from the suction cup will hold the phone securely. The centering of the smartphone is ensured by the magnetic force, so the suction power is always guaranteed. The smartphone is released by simply pressing a lever on the side of the phone base. Thanks to the ingeniously simple combination of magnetic force and vacuum pressure, the smartphone can be operated with one hand and is 360° rotatable, while a ratchet prevents it from rotating during a ride - even on roughest of trails! Super lightweight and strong, our phone mounting system consists of a base (available for various applications) and a special, ultra-thin smartphone case with an embedded geometry. The slim case protects the smartphone on and off the base. The understated elegance of our stealthy case with its shock-proof TPU surrounding is accompanied by a stylish as well as practical ratchet and recessed geometry.The soft material on the inside protects the phone’s - For installation on the handlebar - Fits all bar tubes, 22-46?mm - No interference with electronics - Fits all VACUUM cases

Cadence Magnet for all CatEye computers that record cadence.

The SmartphoneHub transforms your bike into a fully networked eBike. The smartphone and COBI.Bike app turn the SmartphoneHub into an intelligent control center that can be used for navigation, recording activities, and connection to other. The eBike can also be ridden without a smartphone due to the integrated display in the SmartphoneHub, showing the most important riding data. - The SmartphoneHub and the COBI.Bike app connect the eBike to the digital world and allow for navigation, music streaming, fitness tracking, and integration of other services and apps such as Strava - A 1.52-inch display allowing for use without a smartphone - The COBI.Bike app gives eBikers a permanent overview of the most important training data. such as performance, cadence and calorie consumption - The COBI.Bike app allows access to music and audiobook streaming services, such as Spotify or Audible, which can be operated by remote control - The SmartphoneHub charges phones using the eBike battery - Walk assistance function helps you push your eBike at speeds of up to 6 mph

Get your computer dialed with the perfect magnet Getting the correctly sized magnets means you're worrying about where the next coffee stop is, not if your computer is recording the ride. - Universal crank magnets sized for your bike and sensor - Compatible with all cadence sensors

Blendr add-on to Kovee Pro 35 stems Clean up your Bontrager Kovee Pro 35 stem cockpit with Blendr Pro bases. - Blendr works with this simple formula: Stem + Base + Mount. Add accessory - Bases for use with the Kovee Pro 35mm stem - Add any accessory mount (sold separately) for an elegant, integrated look

Getting the correctly sized magnets means you're worrying about where the next coffee stop is, not if your computer is recording the ride. Key features: - Universal crank magnets work with any cadence sensor - Get the perfectly sized magnet, sized right for your bike and sensor - 20mm cadence magnet improves signal for wider gaps between crank and sensor

The adapter puck is required for mounting Garmin head units to the Pro Blendr Alloy Computer Mount. - Start with a Blendr stem, add the appropriate base, and finish with Pro Blendr Alloy Computer Mount and Garmin Adapter Puck for secure mounting of your Garmin head unit. Blendr is an elegant, integrated accessory mounting solution - For use with Garmin head units and Pro Blendr Alloy Computer Mount - Removable design alloys quick and easy adapter puck replacement - Attach your Garmin tether for an additional layer of security

The adapter puck is required for mounting Wahoo head units to the Pro Blendr Alloy Computer Mount. - Start with a Blendr stem, add the appropriate base, and finish with Pro Blendr Alloy Computer Mount and Wahoo Adapter Puck for secure mounting of your Wahoo head unit. Blendr is an elegant, integrated accessory mounting solution - For use with Wahoo head units and Pro Blendr Alloy Computer Mount - Removable design alloys quick and easy adapter puck replacement

Zipp delivers an uncomplicated computer mount for aerobar extensions that’s easy to install, lightweight, and vibration and slip free. The 22.3mm industry standard mount installs simply and securely on aero extensions. The Zipp QuickView TT Computer Mount is aerodynamically shaped for left-side installation, but also can be installed on the right bar extension. It comes with a single Torx T25 bolt, flexible mounting clamp, and a quarter-twist mount.

**Only compatible with SL Sprint Stem (4 bolt)** Zipp’s QuickView Integrated stem faceplate computer mount provides an efficient fix for an emerging challenge on modern bikes, system integration. This new mount doubles as the stem faceplate for a clean look that securely holds your cycle computer and a light or camera. No more multiple mounts bolted on here and there. The mount sits in front of your Zipp stem, positioning it for easy viewing and access. The Zipp QuickView Integrated mount will have two variants, one compatible with Service Course, Service Course SL, and SL Speed models, and another designed for use with the SL Sprint. This is an easy way to add elegant integration to your road bike. FEATURES -Computer compatibility: Garmin™, Wahoo™ -Accessory compatibility: GoPro™ -Lights: Niterider Lumina Series™ (with adapter), Light and Motion™, Bontrager™ (with adapter), Gloworm™ (with adapter), Lezyne™ (with adapter), Infini™ (with adapter), Sigma Sport™ -Lifetime warranty

Handlebar computer mount for Garmin/Wahoo for Vuka Shift AXS

- Easy to mount smartphone case holder - High resistance against impacts - 360 degrees adjustable angle - Quarter-turn type mount allows to place the phone in portrait or landscape mode - Waterproof, touch-screen compatible cover included

Gain more room or find the perfect position for lights, computers, music players, GPS, or whatever, with the Topeak BarXtender. Attaches securely to the handlebars or stem and adjusts for optimum position. - Clamp: Fits 22-38 mm tubes (shims included) - Crossbar: Device mount bar 25.4 mm - Material: Engineering Grade Plastic and Steel - Mount: Handlebar, Handlebar Stem - Size (L x W x H): 18 x 3 x 3 cm, 7.1” x 1.2” x 1.2” (folded) - Size (L x W x H): 13 x 10 x 3 cm, 5.1” x 3.9” x 1.2” (open) - Weight: 116 g / 4.08 oz

Band style clamp with integrated QuickClick mount for fast, easy attachment and removal of Topeak Ratchet Rocket tool case and SmartPhone DryBag. - Fits 22mm-44mm tubes

This handlebar bracket has been developed so you can attach a tablet to your handlebars. The design provides a safe distance so that no sweat falls on the screen while you are training. - Suitable for handlebars with a diameter ranging from 26mm to 35mm - Adjustable to different tablet sizes: length 182-267mm, width 112-197mm, max. thickness 13mm

Use this ANT+ antenna to connect an ANT+ trainer to your computer. That enables you to use computer software during your training sessions, such as the Tacx Trainer software, Zwift, and TrainerRoad. These programs read the training data transmitted by an ANT+ trainer and can control the trainer. It features a long cable so the receiver can be placed close to the trainer for an optimal reception without loss. The antenna is compatible with all trainers that communicate wirelessly via ANT+.

This mounts specifically to the Blendr system supported by Trek, which is similar to a GoPro interface. Featuring an accessory bolt hole pattern, it can be used with Stages accessories. - For Stages Dash L10, L50 and M50 - Fits Blendr-compatible stems - Works with Stages accessories, including GoPro attachment

This mounts specifically to the Blendr system supported by Trek, which is similar to a GoPro interface. - Designed to mount Dash above additional accessories or to the Blendr stem with a bottom attachment - For Stages Dash L10, L50 and M50 - Fits Blendr compatible stems

This mount fits most integrated bar/stem designs with a two-bolt interface below stem. - Mounts to a 2-bolt pattern (parallel to the direction of a stem) integrated handlebar (bolts not included) - Holds the dash level to the bars and in front of the bike. - For Stages Dash L10, L50 and M50 - Fits Shimano PRO and some Canyon integrated bars

Place Dash behind the bar for improved visibility and better protection from mishaps on the trail. - Mounts to the left of the stem, holds the Dash above the stem and bars such that a crash will not break the Dash - Has a plastic clamp that requires 2.5mm allen key to tighten to handlebars - Has rubber spacer so the mount can be used on 31.8mm bars. No accessories can be bolted to the bottom of the mount. - For Stages Dash L10, L50, and M50 - Compatible with 31.8mm and 35mm bars

Attaches Dash to steer tube beneath top cap. Great for mountain bikes and setups with minimal handlebar space. - Mounts to the top cap of a bike by replacing a headset spacer - Angle can be controlled by loosening and tightening the pivot bolt - For Stages Dash L10, L50, and M50 - Fits all 1-1/8" headsets with room for a spacer over the stem

This mount has accessory bolt holes on the bottom so it can be used with stages accessory attachments. - Mounts to the right TT bar, holds the dash in the center of the TT bars by tightening 2.5mm allen key head bolts - Can fit smaller 22mm bars using a rubber spacer (included) - Height, and therefore, bar clearance can be controlled by adjusting the pivot screw. - For Stages Dash L10, L50 and M50 - Compatible with 24mm and 22mm aero extensions - Fits a wide range of aero bars and includes a pivot for multiple placement options and ideal viewing angle

Stages magnet-free Cadence sensors fit to your crank arm and rear hub to provide real-time, accelerometer-based cadence data to your cyclometer or phone via ANT+ and Bluetooth Smart. - Compatible with most crank arms - Installs/removes in seconds - IPX7 Water-resistant - Super light—just 8 grams - Runtime: 600 hours - Operating range: 18-200 rpm - Blue and red LEDs indicate pairing, activation, and low battery status

Stages magnet-free Speed sensors fit to your hub to provide real-time, accelerometer-based speed data to your cyclometer or phone via ANT+ and Bluetooth Smart. - Compatible with most wheels - Installs/removes in seconds - IPX7 Water Resistant - Super light—just 8 grams - Runtime: 600 hours - Operating range: 2-60 mph - Blue and red LEDs indicate pairing, activation, and low battery status