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BBB Highsix OS Stem

BBB Highsix OS Stem
  • Color: Silver
  • Color: Black
Please select options
This item is not permitted to be shipped, however it can be purchased online and picked up at your convenience.


BBB's Highsix OS adjustable stem allows endless handlebar positions. Its height is adjustable from -30 to +30 degrees, so you can raise or lower bars without changing your stem. All it takes is a quick turn of a bolt and you can have a comfortable, upright position or a lower, more aerodynamic position.

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
Silver / 90mm 8716683042603 52054041
Silver / 110mm 8716683042610 52054042
Silver / 125mm 8716683029840 52054043
Black / 90mm 8716683042573 52054031
Black / 110mm 8716683042580 52054032
Black / 125mm 8716683021493 52054033 52054033