Collection: Stems

Clean By Design

The Rockville Stem was built around a simple idea: make a premium mountain bike stem that is strong, lightweight, and looks right on just about any bike. Clean lines, minimal branding, hidden bolt details, and carefully machined surfaces give it a sharp, technical look without turning your cockpit into a billboard.

Machined from 6061-T6 aluminum and designed around a 35mm handlebar clamp, the Rockville is available in Black, Clear, and Bronze so you can keep your build subtle or add a little contrast.

32mm, 40mm or 50mm. Pick Your Length.

Stem length is one of the easiest ways to fine-tune the fit and feel of your cockpit, so we make the Rockville in three useful options:

32mm: The shortest and most compact option for riders looking for a direct cockpit feel and minimal reach.

40mm: The balanced middle ground and our go-to length for most modern trail and enduro bikes.

50mm: A longer option for riders looking to add reach or simply preferring a little more length between the steerer and handlebars.

Same Rockville design, three lengths, and enough options to dial in the cockpit that feels right for you.

Finish The Cockpit

The Rockville was designed to work as part of a complete Trail One cockpit. Our Top Cap & Spacer Kits match the stem's Black, Clear, and Bronze finishes and carry the same clean design into the rest of your steerer setup.

Want to take it a step further? Our Titanium Stem Bolt Upgrade Kit replaces all six stem bolts, saves a little weight, and gives you another way to customize the build with Raw, Black, Gold, or Rainbow titanium hardware.

Made To Ride. Made To Last.

The Rockville Stem is backed by Trail One's lifetime warranty and built for everything from everyday trail riding to aggressive mountain bikes and e-MTBs.

And the giveback Trail One is built from continues, for every Trail One product, it gives back to the trails. For every Rockville Stem sold, $1 goes toward supporting Rockville Hills Regional Park in Fairfield, California.

Great components should make your bike look and ride better. Great mountain bike products should help make the trails better too.