FSA OS-99 Stem (+/- 6-degrees)

FSA OS-99 Stem (+/- 6-degrees)
$99.99
Clamp Diameter:
31.8mm
Color:
Black
Rise:
Steerer Diameter:
1-1/8-inch
Please select options

Details

FSA's OS-99 Stem is a worthy upgrade for your favorite two-wheeled machine. It's made of forged and machined aluminum, so it's light, durable and strong enough for any road or mountain riding adventure. Plus, it comes with titanium hardware and a sculpted SL face plate to further reduce the gram count and boost hill climbing speed.

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.

Part Numbers

Option UPC MPN Store SKU
31.8mm / Black / 80mm / 6° / 1-1/8-inch 400310024237 175-0298 FSA35830255L
31.8mm / Black / 90mm / 6° / 1-1/8-inch 400310024244 175-0299
31.8mm / Black / 100mm / 6° / 1-1/8-inch 400310024251 175-0300
31.8mm / Black / 110mm / 6° / 1-1/8-inch 400310024268 175-0301
31.8mm / Black / 120mm / 6° / 1-1/8-inch 400310024275 175-0302
31.8mm / Black / 130mm / 6° / 1-1/8-inch 400310024282 175-0303

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