FSA OS-140 Road Stem With Carbon Front Clamp (+/- 6-degrees reversible rise)

FSA OS-140 Road Stem With Carbon Front Clamp (+/- 6-degrees reversible rise)
The OS-140 Stem With Carbon Front Clamp in Black w/Laser Graphics.
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FSA's OS-140 Stem is a worthy upgrade for your favorite bike. It's made of forged and machined aluminum, so it's light, durable and strong for road and mountain bikes.

Stem angle is one of the factors that determines handlebar height. A listed angle of 0 degrees actually provides a rise of 16-20 degrees, depending on the bike's head-tube angle. Flexible, athletic riders prefer lower-rise stems, while recreational riders usually favor higher-rise stems.

Stem length is measured along the side of the stem from the center of the steerer to the center of the handlebar clamp (see diagram). Keep in mind that as a stem provides more rise, its effective length decreases. In the example above, if the +17-degree stem measures 135 mm, it actually extends 108 mm parallel to the ground.

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