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$79.99
Upgrade or refresh your bike.
- Affordable alloy seat mast cap
- Direct fit on all Trek road bikes with round seat masts
- 2-bolt design offers independent setback and tilt adjustments
- Includes 7mm round saddle clamp ears
$44.99 - $52.99
Angle-adjust headset cups for select Trek mountain bikes.
- Does not include any other headset parts
- Both the upper cup (size-specific) and lower cup (universal) are required
- Confirm compatibility and find instructions in your bike's service manual
$39.99
Original equipment replacement rear derailleur hangers.
- Attachment hardware is sold separately
- For specific compatibility concerns, please contact our Customer Service team
$39.99
Trek proprietary headset spacers compatible with Trek Knock Block model bikes.
- 3 pack of 10mm spacers specific to the Knock Block system
- Not to be used on a standard headset system
$34.99
Integrates seamlessly into the frame.
- Original equipment for rear IsoSpeed
- Compatible with all MKIV Domane models
$31.99
Original equipment replacement IsoSpeed covers for Trek Checkpoint carbon frames.
- Color matched for direct compatibility
- Sold as a pair
$29.99
Genuine replacement parts
Genuine Trek replacement part to unload the battery.
Original Equipment specifications.
Compatible with Bosch Powertube RIB batteries.
- The handle comes with the spring and RIB handle Spring loaded plunger
- Hardware should be ordered separately
$29.99
Upgrade or refresh your bike.
- Original equipment replacement anti-rotation hardware
- Kit includes washers and bolts for each side of the rear hub
- For use with Hyena freehub hub motors
$29.99
Front derailleur compatibility for your Trek Boone.
- Proprietary adapter for installing a front derailleur on Trek Boone bikes
- Only compatible with 2nd generation Trek Boone bikes
$27.99
Replacement saddle ears for use with Bontrager saddles.
- Compatible with: Madone 2016+, Domane 2019+, Speed Concept 2022+, and road alloy mast cap
- For use with Bontrager 2-bolt seatpost and seat mast systems
$26.99
Genuine replacement parts
Use a smaller battery in your 625Wh RIB battery slot.
Fill the gap between your 625Wh battery slot and your 500Wh battery.
- Not compatible with Bosch Smart System batteries
- Only for use in 625Wh slots with 500Wh batteries
- Hardware is included
- Refer to Service Manual for assembly instructions and service
$24.99
Get back on the trail with a quality replacement hanger.
- Attachment hardware is sold separately
- For specific compatibility concerns, please contact our Customer Service team
Specifications:
- Size: Rear drive side, 135mm Q/R
- Mounting location: Rear drive side
- Attachment: Thru axle nut
$24.99
Get back on the trail with a quality replacement hanger.
- Attachment hardware is sold separately
- For use with 135x5mm hubs
Specifications:
- Size: Rear drive side, 135mm Q/R
- Mounting location: Rear drive side
- Attachment: Thru axle nut
$24.99
Get back on the trail with a quality replacement hanger.
- Attachment hardware is sold separately
- For use with 142x12mm, 148x12mm, 157x12mm, and 197x12mm hubs
Specifications:
- Size: Rear drive side, Thru Axle
- Mounting location: Rear drive side
- Attachment: Thru axle nut
$24.99
Get back on the trail with a quality replacement hanger.
- Original equipment replacement rear derailleur hangers
- Attachment hardware is sold separately
Specifications:
- Size: Rear drive side, 148x12mm Thru Axle
- Mounting location: Rear drive side
- Attachment: Thru axle nut
$24.99
Get back on the trail with a quality replacement hanger.
- Attachment hardware is sold separately
- For specific compatibility concerns, please contact our Customer Service team
Specifications:
- Size: Rear drive side, 130mm Q/R
- Mounting location: Rear drive side
- Attachment: Thru axle nut
$22.99
Don't be left hanging.
- Universal Derailleur Hanger - or UDH - offers greater derailleur protection
- Designed to rotate rearward in event of an impact
- Works with all drivetrains
- 30mm washer provides full coverage over ABP bearing seals
- Included attachment hardware is reverse threaded
$19.99
Genuine replacement parts
Mount your Bosch Kiox Display on Bontrager Blendr Mounts.
For optimal functionality.
- For use with Bosch Kiox display
- Easy mount to Bontrager Blendr Stems
$19.99
Get back on the trail with a quality replacement hanger.
- Attachment hardware is sold separately
- For specific compatibility concerns, please contact our Customer Service team
Specifications:
- Size: Rear drive side, 142x12mm Thru Axle
- Mounting location: Rear drive side
- Attachment: Thru axle nut
$17.99 - $19.99
Get back on the road with a quality replacement hanger.
- Attachment hardware is sold separately
- For specific compatibility concerns, please contact our Customer Service team
Specifications:
- Size: Rear drive side, 135mm Q/R
- Mounting location: Rear drive side
- Attachment: 2-bolt
$19.99
Get back on the road with a quality replacement hanger.
- Attachment hardware is sold separately
- For specific compatibility concerns, please contact our Customer Service team
Specifications:
- Size: Rear drive side, 135mm Q/R
- Mounting location: Rear drive side
- Attachment: 2-bolt
$17.99
Get back on the trail with a quality replacement hanger.
- Attachment hardware is sold separately
- For specific compatibility concerns, please contact our Customer Service team
Specifications:
- Size: Rear drive side, 135mm Q/R
- Mounting location: Rear drive side
- Attachment: Thru axle nut
$17.99
Get back on the road with a quality replacement hanger.
- Attachment hardware is sold separately
- For specific compatibility concerns, please contact our Customer Service team
Specifications:
- Size: Rear drive side, 135mm Q/R
- Mounting location: Rear drive side
- Attachment: 2-bolt
$17.99
Get back on the trail with a quality replacement hanger.
- Attachment hardware is sold separately
- For specific compatibility concerns, please contact our Customer Service team
Specifications:
- Size: Rear drive side, 135mm Q/R
- Mounting location: Rear drive side
- Attachment: 1-bolt
$17.99
Get back on the road with a quality replacement hanger.
- Attachment hardware is sold separately
- For specific compatibility concerns, please contact our Customer Service team
Specifications:
- Size: Rear drive side, 135mm Q/R
- Mounting location: Rear drive side
- Attachment: 2-bolt
$17.99
Get back on the road with a quality replacement hanger.
- Attachment hardware is sold separately
- For specific compatibility concerns, please contact our Customer Service team
Specifications:
- Size: Rear drive side, 135mm Q/R
- Mounting location: Rear drive side
- Attachment: 2-bolt
$17.99
Get back on the trail with a quality replacement hanger.
- Attachment hardware is sold separately
- For specific compatibility concerns, please contact our Customer Service team
Specifications:
- Size: Rear drive side, 135mm Q/R
- Mounting location: Rear drive side
- Attachment: 2-bolt
$14.99
For proper assembly.
- For 2014-2018 Boone
- For specific compatibility concerns, please contact our Customer Service team
$6.99 - $14.99
Trek proprietary suspension hardware.
- Refer to Service Manual for assembly instructions and service
- Sold individually
$12.99
Genuine replacement parts
Ensure your battery stays properly in place.
Genuine battery mounting accessories and replacement parts.
- Contains: Lower- and Upper Bracket and RIB Bumper
- Hardware not included
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