CST Jack Rabbit 29x2.10 Tire Apparel Brand_Defeet A polycarbonate layer built inside

A polycarbonate layer built inside the helmet keeps the foam together in the event of a crash

The ergonomic cut keeps the SF-2 Plastron from shifting in flight

+/- 5% accurate power readings

Also compatible with Sram 900 and 500 brake levers

CST Jack Rabbit 29x2.10 Tire Apparel Brand_Defeet A polycarbonate layer built insideSmall closely spaced knobs make this an XC go to tire and the ramped knobs keep you rolling Folding bead models feature a higher TPI dual compound casing and EPS puncture protection SC Single compound, one compound throughout the tread optimized for longevity and performance Style: Standard Size: 29x2. 1 ISO: 622 Bead: Wire Tread SW: Bk Blk PSI: 55 Weight: 750 TPI: 27 Features: SC Reflective Sidewall: No