The Bontrager RSL Carbon Stem is an ultralight, race-focused stem built from Trek’s highest-grade OCLV Carbon. Designed for riders who prioritize low weight, stiffness, and a clean cockpit, the RSL stem delivers precise steering control with a refined, minimalist aesthetic.
This is the same stem used on Trek’s top-tier road and performance builds, offering exceptional strength-to-weight performance and compatibility with modern carbon handlebars and steerers.
This listing covers multiple stem lengths. Select the desired length from the variation menu.
Brand: Bontrager
Model: RSL Carbon Stem
Rise: 7°
Handlebar Clamp Diameter: 31.8mm
Steerer Clamp Diameter: 1-1/8"
Material: OCLV Carbon
Hardware: Captured titanium bolts
Faceplate: Flush-fit dual-band, 4-bolt design
Approved For: Carbon or alloy handlebars and steerer tubes
70mm
100mm
110mm
120mm
130mm
140mm
OCLV Carbon construction provides an exceptional stiffness-to-weight ratio
Flush-fit faceplate bands create a seamless, high-end cockpit appearance
Captured titanium hardware reduces weight and simplifies installation
Designed for performance road and race applications
Blendr bases and mounts are NOT included
This listing includes only the stem as pictured
Compatible with Blendr accessories when proper mounts are added separately
Torque to manufacturer specifications when installing on carbon components
This is a genuine Bontrager OEM stem, purchased directly from Trek.
Non-retail packaged.
Includes only the bare stem as shown.
No Blendr bases, mounts, or accessories are included.