The Rockville Stem is built to deliver uncompromising strength, precise steering, and clean aesthetics. Designed with extensive 3D stress analysis and ISO testing, it sheds unnecessary weight while keeping reliability at the forefront. Available in three lengths and multiple anodized colors, it’s the stem that balances performance and style for any mountain bike build. Three lengths – 32mm, 40mm & 50mm Sleek Aesthetics – Blind bolt holes with non-drive steerer bolts Made in California – Fully CNC’d from 6061 aluminum We are on a mission to make phenomenal products that support the sport of mountain biking. For every Rockville Stem sold, we donate $1 to the Rockville Hills Regional Park. We exist to support the trails we love and the people that take care of them. Check out our philanthropy projects at trailone.bike/projects Designed in Ireland Machined, anodized and laser etched in California Lifetime Warranty Clamps to 35 mm handlebars Material: 6061-T6 machined aluminum Length: 32mm, 40mm or 50mm Stack: 41mm Rise: 0° Weight: 32 mm: 144 grams. 40 mm: 157 grams Recommended Torque Specs: 6 Nm all bolts Bolts: M5 x 18mm Stainless Steel Tested to spec: ISO4210-5 Giveback: $1/per pair sold donated to Rockville Regional Park, CA Trail One Components are crafted by real mountain bikers, are made to last, built to perform and most of all, support the sport we love. - Jeff Cayley