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Choose the gauge style that suits your preference:
and is equipped with comfort touchpoints
offering up to 300% pedal assistance
no other indoor bike trainer has more software training options
Shimano BB-RS500 Bottom Bracket Tiagra Press-Fit accessories Choose the gauge style thatThe Shimano BB RS500 Press Fit Bottom Bracket is designed for smooth, efficient performance on modern road and gravel bikes. Built to fit BB86 press fit frames (41 mm shell diameter 86. 5 mm shell width), it is fully compatible with Shimano Hollowtech II cranksets using a 24 mm spindle, including Tiagra. Featuring sealed steel bearings, the BB RS500 delivers low friction, reliable rotation, and long service life, even under regular training use.