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Bontrager Select ATB Stem (+/-10-degree Rise) - 2008

Bontrager Select ATB Stem (+/-10-degree Rise)
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Bontrager's ATB Select Stem is made of forged 6061-T6 aluminum for awesome strength. The 2-bolt faceplate makes it super easy to install, and the opposing bolts on the steerer clamp ensure safe and secure tightening, too.

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
60mm 601479019472 260077
70mm 601479019489 260078
80mm 601479019496 260079
90mm 601479019502 260080
100mm 601479019519 260081
110mm 601479019526 260082
120mm 601479019533 260083
130mm 601479019540 260084