The Yokomo B9-BTCB Belt Tension Adjust Cam is a machine-cut component made for BD9 owners who want exact control over belt preload. It helps set consistent tension for smoother drivetrain response and longer belt life during regular track sessions.
Keeping belt tension right reduces drivetrain lash and uneven wear. The B9-BTCB cam makes small adjustments quick and repeatable, so you can adapt your setup between practice and race runs without guesswork.
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