Parts & Accessories

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

Shimano BT-R1A External Di2 Battery - 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 - Di2 External Battery, battery charger, and power cable are universal between Dura-Ace 9070, 7970, Ultegra 6870, 6770 and Alfine Di2 systems - Battery weight: 71 grams

- 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

CR2450 battery for use in SIGMA computers. Compatible models: - BC 1909 - BC 2209 - BC 2209 Targa - ROX 8.0/8.1 - ROX 9.0/9.1 - ROX 5 - ROX 6 - BC 23.16 STS

Allows use of two Blendr mounts on a Trek Madone SLR Blendr add-on to the Madone SLR bar/stem Mount light, computer, GPS and/or cameras to your top-of-the-line aero road bike - Blendr works with this simple formula: Stem + Base + Mount. Add accessory. - Bases for use with the Trek Madone SLR Aero Integrated handlebar - Add any accessory mount (sold separately) for an elegant, integrated look - Does not include mounting hardware

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

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.

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 RPM 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 allow you to connect to and display data on both smartphones and bike computers. Tracking speed 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. - The RPM speed installs easily with no magnets required - It only weighs 16.5 grams with the mount included - Provides accurate speed data during your ride - Mounts on most front wheel hub with a secure silicone casing - Two LED lights show the sensor's device connection (blue) and speed detection (red) - No charging required! Operates on a coin cell battery for up to 1 years. - RPM Speed will fit with most bikes and frame sizes

All you need for cycling data, all together at once! The Wahoo RPM Speed and Cadence sensors are both a sleek, wireless, and magnet-less solution. Each mounts easily to your bike and the Bluetooth Smart and ANT+ duel band technology allows you to connect and display data on both smartphone and bike computers. - Dimensions (LxWxH): 1.25" x.75" x 1" - Weight: 7 grams (without mount) - Battery: CR2032 - Battery Life: Up to 12 months - Water Rating: IPX7 (waterproof up to 5 ft) - Wireless Signal Strength: Up to 10 feet - Note: Speed Sensor is NOT compatible with spin bikes

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.