Trek Bontrager Carbon Seatmast Cap 135/175mm 5/20mm Offset Domane Emonda Madone

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Trek Bontrager Carbon Seatmast Cap 135/175mm 5/20mm Offset Domane Emonda Madone
About This Item
Product Description
The Bontrager Carbon Seatmast Cap is a genuine Trek replacement component designed for compatible Trek road bikes using Trek’s seatmast system.
Constructed from lightweight carbon fiber, the cap provides a clean, secure saddle mounting solution with multiple length and setback options to help dial in saddle height and riding position.
This multi-variation listing includes 135mm and 175mm lengths with either 5mm or 20mm offset, depending on the selected option.
Available Variations
Seatmast Cap Size Length Offset Claimed Weight
135mm x 20mm 135mm 20mm 130g
175mm x 20mm 175mm 20mm 150g
175mm x 5mm 175mm 5mm 150g
Key Features
Genuine Trek / Bontrager replacement seatmast cap
Lightweight carbon construction
Multiple length and offset options
Single-bolt saddle adjustment design
Allows saddle angle and fore/aft positioning adjustment
Designed for compatible Trek seatmast-equipped road frames
Clean OEM replacement for damaged, missing, or differently sized seatmast caps
Specifications
Brand: Bontrager / Trek
Product Type: Seatmast Cap
Material: Carbon Fiber
Length Options: 135mm / 175mm
Offset Options: 5mm / 20mm
Saddle Adjustment: Single Bolt
Recommended Torque: 6-8 Nm
Rail Clamp Hardware: Not Included
Compatibility
Designed for compatible Trek seatmast-equipped road bikes, including applicable:
Trek Domane SL / SLR, approximately 2012-2019
Trek Émonda SL / SLR
Trek Madone 5 / 6 / 7 Series, approximately 2010-2015
Compatibility can vary by model year, frame generation, and required saddle-rail clamp hardware. Confirm your existing seatmast dimensions and required offset before ordering.
Important Hardware Note
This listing is for the carbon seatmast cap only. SOLD HERE
Rotary saddle clamp / head hardware is not included. Existing compatible clamp hardware may be transferred over, or the correct Trek hardware can be sourced separately if needed.
Included
One Bontrager carbon seatmast cap in the selected size
Not Included
Rotary head / saddle clamp hardware
Saddle rail ears
Saddle
Additional installation hardware unless pictured
Condition
New
Non-retail packaged
Specifications
Brand Bontrager
Condition New
Unbeatable Year-Round Bargains
Wheel & Sprocket has been family owned since 1973, with shops across Milwaukee, the Fox Valley, Madison and Chicagoland. Every order is picked and packed by people who ride, and if something is not right a mechanic will answer you — not a script.
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