Engin 35MM MTB Stem (32mm/40mm/50mm lengths)
Engin 35MM MTB Stem (32mm/40mm/50mm lengths)
A 35 mm handlebar clamp* stem made to the same exacting standards as our seat collar. Uses stainless steel bolts, or our custom Ti bolts machined in house. Available in 32, 40, and 50 mm lengths.
Lime Green is on sale as it is a discontinued color.
The (gloss) Black, Silver, and Purple colors will match the current Seat Collar offerings of those colors seen here.
*This stem is not compatible with 31.8 mm clamp bars without the use of a shim.
You can view or download the installation instructions here. Installation of this stem requires the use of a torque wrench, we recommend one that indicates more than one torque value. To that end we have made this one from Topeak available here.
Specs
| Material | 6061 Aluminum | |
| Weight | ||
| 32 mm | 135 g (w/ Steel Bolts) | 127 g (w/ Ti Bolts) |
| 40 mm | 147 g (w/ Steel Bolts) | 139 g (w/ Ti Bolts) |
| 50 mm | 181 g (w/ Steel Bolts) | 172 g (w/ Ti Bolts) |
| Stack Height | 40 mm | |
| Clamp Width | 50 mm | |
| Height Offset | 5 mm | |
| Steer Clamp | 28.6 mm | |
| Bolt Torque | 5 nm MAX |
Additional Info
The all-new Engin 35MM Stem is a premium component designed to exacting standards for modern mountain bikes. Each stem is produced from domestically sourced 6061 aluminum and machined in house in Philadelphia, Pennsylvania. Using 24 different tools across a total of 9 different operations, our stems have been refined over the course of an exhaustive development period where no detail has been left unconsidered.
Every threaded hole on the Engin Stem is form tapped to increase strength and longevity over standard cut threads. While slightly more expensive to do, we believe that the value it offers in terms of the longevity of our product is worth it.
In that interest we now have two options for fasteners. A 316 stainless steel bolt, or our custom made in house Titanium hardware. Our Titanium hardware is made in house to the highest standards and is durable enough to hold up to the abuse this stem is designed for, while being lighter than stainless hardware. Titanium hardware is also available in custom anodized colors upon request.
One major hurdle to clear in the development process was ensuring a tight fit and secure clamp with a wide array of handlebars and fork steerers on the market often having slightly varying clamp diameters from the nominal measurement. In order to accommodate the most bars and forks possible, we went through a painstaking process of refining the bore sizes on our clamps to ensure the best possible fit on any bar or fork you could choose to use with our stems. This means you won’t need to resort to over-torquing fasteners to firmly hold your components, which is a main cause of failure for both handlebars and stems.
Realizing the importance of proper installation to get the most out of a precision stem, we made it as easy as possible to nail the torque values with a no gap design on our faceplate. It makes getting even clamping force distribution a cinch, so you can keep your focus on pointing the bars in the right direction.
