Components

VumaChrono chain rings

Proprietary chain rings for the VumaChrono TT crank system.

VumaChrono chain ring bolt kit

Replacement bolt ring kit consisting of:. 4 x no-nuts bults and spacers, 9 x screws and a ramp pin. Rejuvenate your Vumachrono, keep the rings secure and true.

VumaQuad chain rings

Custom 4 bolt chain rings for the Zipp VumaQuad crank. 50/34 or 53/39, these may be purchased as single rings.

VumaQuad chain ring bolt kit

Replacement bolts for VumaQuad chain rings. Includes 3 bolts, arm spacer and bolt and ramp pin.

182 Free Hub 2005-2008

Switch between SRAM/Shimano (red) and Campagnolo (blue) cassette bodies.

188 Free Hub Conversion Kit '9-12

Quicly and easily change the free hub on your Zipp wheel to fit your current drive chain.