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

Our top-selling wireless sport headphones formerly known as Aeropex now come with new packaging, a quick-charge feature, and a new name. OpenRun are our lightest headphones to date and are engineered with outstanding sound, a long-lasting battery, and Quick Charge to keep you aware and motivated while you power through any workout. - 8th Generation Bone Conduction Technology - IP67 Waterproof (Not for swimming)  - Lightweight + Comfortable - 8-Hour Battery Life + Quick Charge

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

Profile Design's UCM Universal Computer Mount provides a convenient 25mm long place to mount your computer on your aero bars. It installs without tools, stays put and can be positioned as needed for easily viewing and controlling your computer.

Monitor your pedaling cadence as you ride with this easy-to-install wireless sensor. With no magnets or other exposed parts to line up, this sensor is easy to install, maintain and move between bikes. Simply attach the sensor and ride. With no magnets or other exposed parts to line up, this sensor is easy to install, maintain and move between bikes.

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 is the ultimate integration system for clean and easy installation of lights, computers, and other accessories. Start with a Blendr stem, add the appropriate base, and finish with the Blendr Garmin High Mount for a clean, flush look that securely holds your Garmin centered over the stem. Key features: - Blendr is an elegant, integrated accessory mounting solution - Provides clean and secure mount for Garmin GPS - Works with any Blendr-compatible stem and the accompanying base - For use with Blendr bases (Pro, XXX, XXX bar/stem, and select Elite bases)

Light up the road Blendr is the ultimate integration system for clean and easy installation of lights, computers, and other accessories. Start with a Blendr stem, add the appropriate base, and finish with the Blendr Universal Ion Mount for a clean, flush look that securely holds your Bontrager Ion light in a perfect position to see and be seen. - Blendr is an elegant, integrated accessory mounting solution - Clip can be rotated for compatibility with many Bontrager accessories - Works with any Blendr-compatible stem and the accompanying base

Keep your computer and sensors ready for every ride with replacement batteries. Genuine replacement parts. - Don't let a dead battery spoil your ride. - Keep your computer fresh and ready to go with a new battery. - For use with the Bontrager Micro Remote - Sold individually

Keep your computer and sensors ready for every ride with replacement batteries Key features: - CR2032 battery is used for most Trek and Bontrager computers - 23AE battery is used for the Bontrager Interchange Analog Wireless Sensor - LR44 and L1154 batteries are identical and used in Bontrager SpeedTrap Sensor

Bontrager's DuoTrap Digital Speed/Cadence Sensor pulls double duty for your ANT+ cycling computer. It wirelessly transmits speed and cadence data and fits directly into the chainstay of certain Trek bicycles for a clean look that installs in seconds.

Connect ANT+ and Bluetooth Smart devices to all of the data available from the DuoTrap S sensor for your on-the-bike wireless needs. • ANT+ 2.4 GHz and Bluetooth Smart wireless digital speed and cadence sensor • ANT+ and Bluetooth Smart allow simultaneous use of Trip 300 and smartphone • For use with many ANT+ and Bluetooth Smart wireless technology enabled devices • Includes Bontrager wheel magnet, crank cadence band, and CR2032 battery • Works with Trek DuoTrap compatible bikes

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

Wahoo USB ANT+ dongle Kit connects KICKR, KICKR SNAP and other ANT+ enabled devices to a Mac or PC. The 3-foot extension cord extends the USB ANT+ transmitter away from the computer and towards the connected device to avoid signal interference.

Our stem mount for Wahoo ELEMNT GPS bike computers is made of lightweight, durable plastic and is a great solution for cyclists who prefer to keep their computer on top of the stem. - Fits any stem - Weight: 0.2oz - Works with ELEMNT, ELEMNT ROAM, ELEMNT BOLT, and ELEMNT Mini Note: BOLT loses aerodynamic advantage with this mount)

The Wahoo RPM cadence sensor is your sleek little solution for measuring cycling cadence data. It is wireless, magnet-less, lightweight, and easily mounts to your bike's crank arm or to your shoe. Bluetooth Smart and ANT+ dual band technology allows you to connect to and display data on both smartphones and GPS bike computers. Collecting cadence data has never been this easy. - Both ANT+ and Bluetooth Smart capabilities allow for a wireless connection to both smartphones and bike computers. - No tangled wires on your bike to connect the sensor to your device. - It only weighs 7 grams! - Provides accurate cadence data during your ride - (1) mount with double sided 3M tape, or (2) use the silicone sleeve and mount with zip ties. - The RPM can be worn on your shoe for spin classes or use with multiple bikes - Two LED lights show the sensor's device connection (blue) and cadence detection (red) - No charging required! Operates on a coin cell battery for up to 1 years. - RPM cadence sensor will fit with most bikes and frame sizes

The Wahoo TRACKR SPEED sensor is the sleek, magnet-less solution for capturing cycling speed data. It easily mounts to your bike's front wheel hub, and the Bluetooth Smart and ANT+ dual band technology allows you to connect to and display data on both smartphones and bike computers. Tracking speed data has never been this easy.

- Di2 internal battery, fits all e-Tube Di2 groups - Capacity: 500 mAH (± 2000km) - Use with EW-WU101 or SC-MT800 interfaces/junction to gain BlueTooth Smart wireless connectivity for on-the-fly adjustments with smartphones and tablets - Requires SM-BCR2 charger

The new DN300 Built-In type battery features the same waterproof design that Di2 users have loved for generations. Now with 3 ports, it delivers stable power to Shimano's 12-speed road derailleurs (and shifters if a fully wired option is selected). - Compatible with thinner next-generation electric wire SD300 and systems after R9250/R8150 series - Li-Ion type - Capacity: 500 mAH |3.7Wh (± 2000km autonomy) - Rated voltage: 7.4V - Charges through RD-R9250 |RD-R8150 rear derailleur using EW-EC300 Di2 Charging Cable (sold separately) - Fixing small parts included - Weight: 52g

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

KMC's digital ChainChecker is the most accurate tool for checking your chain’s elongation. - Measures up to 2.5mm elongation - Fits all chains including 11 speed - Handy electronic device - Stainless hardened metal body

The K-EDGE Garmin Stem Mount is a great upgrade solution for cyclists who prefer their computer above the stem. Mounting off of the steerer tube, the mount replaces a standard 5mm spacer, and is locked securely in place by the top cap compression system. The adjustable version allows for a variety of different stem angles. Can be used with positive or negative degree stems and additional spacers can be added (5mm to 10mm) above the stem. Note that some of the larger computers will not always work with a steep angled stem. Designed with mountain biking in mind, the K-EDGE Stem mount is also ideal for much more including: cyclocross; triathlon; bike touring; or if you simply prefer this position for your computer.

Convert your K-Edge Garmin Computer Mount to be a Computer + Action Camera combination mount. Works with any camera that utilizes the GoPro sytle interface, including GoPro Hero, Garmin VIRB, and Shimano CM-1000. - Camera Adapter mount with GoPro style interface - Fits K-EDGE Garmin Mounts (K13-500, K13-505, K13-560) - Locks GoPro, Shimano, VIRB style cameras underneath Garmin Computer. - Centers camera in out of site position - Improves video clarity by removing plastic mount shake - Colors: Anodized Black - Weight: 14grams *Note: Garmin VIRB requires the GoPro adapter that is included in the box with the VIRB.

The strongest K-EDGE Mount yet, designed for today’s heaviest computers, cameras and lights. Upgrade to the Garmin Max Combo mount for a solid and clean platform for your cycling electronics. Chosen by the best, year after year, when quality, performance and craftsmanship matter. - Max combo mount is compatible with GARMIN Cycling Computers smaller than EDGE 1000, 1030 style (example EDGE 820) - Combo Mount (Computer on top – light or camera underneath) with GoPro style light/camera interface - GARMIN approved replaceable computer insert protects computer tabs - CNC Machined Aluminum, Anodized Black with laser etched logos - Made in-house, Boise, Idaho USA with a Lifetime Warranty - Weight: 60g

The strongest K-EDGE Mount yet, designed for today’s heaviest computers, cameras and lights. Upgrade to the Garmin Max Combo mount for a solid and clean platform for your cycling electronics. Chosen by the best, year after year, when quality, performance and craftsmanship matter. - Max XL combo mount is compatible with all Garmin Cycling Computers - Combo Mount (Computer on top – light or camera underneath) with GoPro style light/camera interface - GARMIN approved replaceable computer insert protects computer tabs - CNC Machined Aluminum, Anodized Black with laser etched logos - Made in-house, Boise, Idaho USA with a Lifetime Warranty - Weight: 63g

K-EDGE’s legendary CNC machined aluminum quality and strength for the price conscious cyclist. Pro positioning of your computer, out-front and flush with the top of the handlebar. - CNC Machined 6061-T6 Aluminum Platform, Injection Molded Copolymer Interface - Compatible: Garmin EDGE 820, 520, 510, 500, 25 and 20. - Replaceable Garmin Insert with K-EDGE “Definitive Click” locking system - Fits 31.8MM Handlebars - NOT combo compatible - Weight: 48g - Anodized Color- Black

A lightweight and highly adjustable mount for positioning any Garmin computer on aero bars. The pivoting two piece design offers multiple mounting positions based on aero bars, hydration systems and rider preference. - For 22.2mm diameter aero bar extensions - Compatible with all Garmin EDGE computers - Highly adjustable for multitude of mounting positions - Replaceable Garmin Insert with K-EDGE “Definitive Click” locking system - GoPro Interface Compatible - Weight: 29g - Anodized Colors: Black, Red, Blue - Made in Boise, Idaho, USA - Lifetime Guarantee against material or manufacture defects. Damages due to abuse or crashing excluded

The K-EDGE Gravity Top Cap is a great computer mount for those mountain riders that already a lot going on with the cockpit of their bikes, or just want a simple and sleek looking computer mount. The Top Cap replaces your already existing top cap with the K-EDGE Gravity top cap. Ideal position for Downhill and Enduro racing/riding, but is also a popular solution for any bike when using a smaller style computer (20, 25, 200, 500, 510, 520, 820). - CNC Machined 6061-T6 Aluminum Platform, Injection Molded Garmin Specific Co- Polymer Interface - Compatibility: All Garmin Edge® Computers including the 1030*, 1000*, 820, 810*, 800*, 510, 520, 500, 200, 25, 20. Also supports the Touring, Touring Plus, Forerunner 310XT, and 910XT. (Larger EDGE computers such as 800, 810, 1000, 1030 may interfere with very steep, upright, stem angles.) - Made in Boise, Idaho, USA. - Lifetime Guarantee against material or manufacture defects. Damages due to abuse or crashing excluded.

The K-EDGE co-polymer insert for Garmin 1/4 Turn style computers is a replaceable item. While it is extremely strong, we designed this insert to fail on a significant impact before the tabs on the back of the Garmin break. - Qty 1 – K-EDGE Co-polymer Insert for Garmin 1/4 Computer (Part No. K13-503) - Qty 2 – M3 x 0.5mm x 6mm with Pre-Applied Nylon 180,18-8 S.S. Screws