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The ultimate in cockpit data integration. Personalize your ride and your data with RED AXS controls and the Hammerhead Karoo. Use Bonus Buttons to scroll your head unit or shift your derailleur from our most comfortable controls. FEATURES: - Aftermarket kit includes: Hammerhead Karoo, left and right Shift-Brake System controls, and flat mount calipers - Compatible with all generations of AXS derailleurs

This is an updated version of the 3D-Printed Ti OSPW for Shimano 9100/8000. This new design has an integrated stop tower for easier mounting. The CeramicSpeed Oversized Pulley Wheel System has been proven to be the fastest pulley system in the world, providing energy savings starting at 2.4 watts over standard Shimano systems. The OSPW System for Shimano 9100/8000 is an industry-leading product, chosen by many of the world's leading cycling teams and professional triathletes. Featuring a 13-tooth upper pulley wheel and a 19-tooth lower pulley wheel to provide absolute optimization of the rear derailleur, the upper and lower oversized aluminum pulley wheels are fitted with coated CeramicSpeed Bearings for even longer lifetime and lower friction. Please note: The 9100/8000 system is not compatible with Ultegra 8000-GS or 8050-GS (medium cage) derailleurs, nor is it compatible with clutch-equipped Ultegra RD RX800 & RX805. Please see CeramicSpeed's Shimano 11 Speed Pulley Wheels for a compatible upgrade. - The overall power savings of the OSPW System for Shimano 9100/8000 reach 30%-60%, or more in some cases, over a stock setup. - The oversized pulley wheels have 3-5 times longer lifetime than the commonly used standard pulleys on the market. - The Shimano 9100/8000 OSPW system is compatible with up to a 32-tooth cassette for both Dura Ace & Ultegra derailleurs. In The Box: - A complete 3D-printed 13-tooth/19-tooth OSPW System - CeramicSpeed Bearing Oil in 15ml dropper bottle

Trek engineered framestays help transmit the trail to your rear shock while maintaining a stiff frame.

Features
- Designed for Supercaliber 29 2022
- Now compatible with SRAM UDH
- Color-matched for direct compatibility
- Size Small swingarms only fit size Small front triangles
- Backwards compatible to Supercaliber 2020 & 2021 front triangles

Trek engineered framestays help transmit the trail to your rear shock while maintaining a stiff frame.

Features
- Designed for 2024 Supercaliber with Rock Shox IsoStrut
- Refer to the Service Manual for assembly & service instructions
- Color-matched for direct compatibility
- Size large triangle fits sizes medium and up

Trek engineered framestays help transmit the trail to your rear shock while maintaining a stiff frame.

Features
- Designed for 2024 Supercaliber with Rock Shox IsoStrut
- Refer to the Service Manual for assembly & service instructions
- Color-matched for direct compatibility
- Size small triangle only fits size small bikes

Trek engineered framestays help transmit the trail to your rear shock while maintaining a stiff frame.

Features
- Designed for Supercaliber 29 2020
- Not compatible with SRAM UDH
- Color matched for direct compatibility, select neutral black models available
- Size Small swingarms only fit size Small front triangles

Trek engineered framestays help transmit the trail to your rear shock while maintaining a stiff frame.

Features
- Color-matched for direct compatibility
- For use with Medium Large, Large, and X-Large frames
- Refer to the Service Manual for assembly & service instructions

Trek engineered framestays help transmit the trail to your rear shock while maintaining a stiff frame.

Features
- Color-matched for direct compatibility
- For use with size Small frames
- Refer to the Service Manual for assembly & service instructions

When it's time to refresh your trusty wheelset, Trek genuine replacement parts have you covered.

Features
- Premium ceramic replacement bearings for Bontrager Aeolus RSL disc wheels
- Only compatible with Bontrager disc-brake wheels with DT-Swiss internals
- CeramicSpeed bearings reduce friction and improve performance & durability
- 400% smoother, 128% harder, and 58% lighter than a standard steel bearing
- Made from Grade 3 Silicon Nitrate - the highest possible grade
- 75% harder bearing race, further reducing friction and wear
- Handmade in Denmark and used by numerous pro teams including Trek Factory Racing

Trek engineered chainstays help transmit the trail to your rear shock while maintaining a stiff frame.

Features
- Designed for 2021 Fuel EX Carbon
- Color-matched for direct compatibility
- Increased clearance for smaller chainrings compared to 2020 versions
- For 148x12 Boost frames and wheels

Trek engineered framestays help transmit the trail to your rear shock while maintaining a stiff frame.

Features
- Designed for 2020 Rail Carbon
- Compatible with all 2020-2023 Rail carbon models
- Color-matched for direct compatibility
- Refer to the Service Manual for assembly & service instructions
- Compatible with Bosch Smart System speed sensor wire

Trek engineered chainstays help transmit the trail to your rear shock while maintaining a stiff frame.

Features
- Designed for 2021 Powerfly FS
- Not backwards compatible with 2015-2020 Powerfly FS
- Color-matched for direct compatibility
- Refer to the Service Manual for assembly & service instructions
- Not compatible with Bosch Smart System speed sensor wire

Trek engineered chainstays help transmit the trail to your rear shock while maintaining a stiff frame.

Features
- Redesigned for 2021 Rail 9.5 to fit carbon mainframes
- Backwards compatible to 2020-2021 Rail aluminum mainframes
- Compatible with Rail carbon mainframes
- Color-matched for direct compatibility
- Refer to the Service Manual for assembly & service instructions
- Not compatible with Bosch Smart System speed sensor wire

Trek engineered framestay helps transmit the trail to your rear shock while maintaining a stiff frame.

Features
- Designed for 2021+ Slash 29 Carbon
- Color matched for direct compatibility
- For 148x12 Boost frames and wheels
- Not compatible with Slash 29 2017-2020

Trek engineered chainstays help transmit the trail to your rear shock while maintaining a stiff frame.

Features
- Now compatible with SRAM UDH
- Color-matched for direct compatibility
- Not compatible with 2020-2021 Top Fuel 29
- Refer to the Service Manual for assembly & service instructions

Trek engineered framestays help transmit the trail to your rear shock while maintaining a stiff frame.

Features
- Color-matched for direct compatibility
- Refer to the Service Manual for assembly & service instructions

Trek engineered framestays help transmit the trail to your rear shock while maintaining a stiff frame.

Features
- Designed for Rail+ Gen 5
- Not compatible with prior generations
- Refer to the Service Manual for assembly & service instructions
- Color-matched for direct compatibility

Get back on the trail with a genuine replacement chainstay.

Features
- Designed for Slash+
- Color-matched for direct compatibility
- Refer to the Service Manual for assembly & service instructions
- For OE replacement purposes only - not intended for aftermarket installation

Trek engineered framestays help transmit the trail to your rear shock while maintaining a stiff frame.

Features
- Designed for Fuel+ Gen 2
- Not compatible with prior generations
- Refer to the Service Manual for assembly & service instructions
- Color-matched for direct compatibility

Trek engineered framestays help transmit the trail to your rear shock while maintaining a stiff frame.

Features
- Designed for 2021-2023 Slash Gen 5
- Color-matched for direct compatibility
- Not backwards compatible with previous Slash generations
- Not forwards compatible with 2024 Slash Gen 6
- Refer to the Service Manual for assembly & service instructions

Trek engineered framestays help transmit the trail to your rear shock while maintaining a stiff frame.

Features
- Designed for 2024 Slash Gen 6
- Color-matched for direct compatibility
- Not backwards compatible with previous Slash generations
- Refer to the Service Manual for assembly & service instructions

This is an updated version of the Oversized Pulley Wheel System for Shimano 9100/9150 and 8000 SS/8050 SS. This new design has an integrated stop tower for easier mounting. The CeramicSpeed Oversized Pulley Wheels System has been proven to be the fastest pulley system in the world, providing energy savings starting at 2.4 watts compared to standard Shimano systems. The OSPW System for Shimano 9100/9150 and 8000 SS/8050 SS is an industry-leading product, chosen by many of the world's leading cycling teams and professional triathletes. It features a 13-tooth upper pulley wheel and a 19-tooth lower to provide absolute optimization of the rear derailleur, and these oversized aluminum pulley wheels come fitted with either standard or coated CeramicSpeed Bearings: your choice. The Shimano 9100/8000 OSPW system is compatible up to a 32 tooth cassette for both Dura Ace & Ultegra derailleurs The typical overall power savings of the OSPW System for Shimano 9100/9150/8000 is 30%-60% over a stock setup. The oversized pulley wheels have lifespan that is 3-5 times longer than the commonly used standard pulleys on the market. Please note: The OSPW System for 9100/9150 and 8000 SS/8050 SS is NOT compatible with Ultegra 8000-GS or 8050-GS (medium cage) derailleurs, nor with the clutch-equipped Ultegra RD RX800 & RX805. Choose CeramicSpeed's OSPW X for Shimano RX800/805 for a compatible RX800 & RX805 version. For a compatible upgrade for Ultegra 8000-GS or 8050-GS choose their Pulley Wheels for Shimano, 11s NW. In The Box: - A complete 13-tooth/19-tooth OSPW System - CeramicSpeed Bearing Oil in 15ml dropper bottle

The OSPW X for SRAM Eagle AXS features a narrow wide tooth profile to ensure durable chain retention. The 14-tooth upper and 18-tooth lower pulleys reduce chain drag, while the custom-designed carbon fiber pulley cage ensures both durability and light weight. - Pulley Wheels: CeramicSpeed 14-tooth upper and 18-tooth lower - Pulley Wheel Material: aluminum - Cage Material: Carbon-reinforced PA - Bearing Options: CeramicSpeed Standard or Coated - CeramicSpeed Grease/Oil: Pulley Oil - Compatibility: SRAM Eagle AXS (Electronic) - Compatibility Cassette: 10-52 tooth max - Spring Tension Settings: 3 - Speed: 12-speed - Discipline: Off-road and Gravity In the box: - A complete OSPW X System for SRAM Eagle AXS - CeramicSpeed Bearing Oil in a 15ml dropper bottle

Trek engineered framestays help transmit the trail to your rear shock while maintaining a stiff frame.

Features
- Designed for 2020 Rail Carbon
- Compatible with all 2020-2023 Rail carbon models
- Color-matched for direct compatibility
- Refer to the Service Manual for assembly & service instructions
- 180mm minimum rotor mount

Trek engineered framestays help transmit the trail to your rear shock while maintaining a stiff frame.

Features
- Redesigned for 2021 Rail 9.5 to fit carbon mainframes
- Compatible with 2020-2023 Rail aluminum mainframes
- Compatible with Rail carbon mainframes
- Color-matched for direct compatibility
- Refer to the Service Manual for assembly & service instructions
- 180mm minimum rotor mount

Trek engineered framestays help transmit the trail to your rear shock while maintaining a stiff frame.

Features
- Now compatible with SRAM UDH
- Color-matched for direct compatibility, select neutral black models available
- Not compatible with 2020-2021 Top Fuel 29
- Refer to the Service Manual for assembly & service instructions

Trek engineered framestays help transmit the trail to your rear shock while maintaining a stiff frame.

Features
- Designed for Rail+ Gen 5
- Not compatible with prior generations
- Refer to the Service Manual for assembly & service instructions
- Color-matched for direct compatibility
- Fender sold separately

Get back on the trail with a genuine replacement seatstay.

Features
- Designed for Slash+
- Color-matched for direct compatibility
- Cross compatible with Slash Gen 6 paint match carbon seatstays
- Refer to the Service Manual for assembly & service instructions
- For OE replacement purposes only - not intended for aftermarket installation

Trek engineered framestays help transmit the trail to your rear shock while maintaining a stiff frame.

Features
- Designed for 2021-2023 Slash Gen 5
- Color-matched for direct compatibility
- Not backwards compatible with previous Slash generations
- Not forwards compatible with 2024 Slash Gen 6
- Refer to the Service Manual for assembly & service instructions

Trek engineered framestays help transmit the trail to your rear shock while maintaining a stiff frame.

Features
- Designed for 2024 Slash Gen 6
- Color-matched for direct compatibility
- Not backwards compatible with previous Slash generations
- Refer to the Service Manual for assembly & service instructions
- For OE replacement purposes only - not intended for aftermarket installation