Average Customer Rating:5.0 out of 5 (based on 1 rating)
STM Crank Case Breathers are constructed of anodized aluminum complete with special carbon fiber reed pedal to prevent oil leakage.
The breathers come in 2 different styles. One fits street bikes and is available in 5 different colors: RED, GOLD, SILVER, BLACK, and BLUE. The other fits racing bikes and is only available in RED.
It differs from the standard unit with a freer flowing system (designed to handle the added crankcase pressure that occurres during competition), and a 35 degree angle to work with under seat oil catch tanks.
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