Zipp Service Parts Hub Bearings Kit For 77/76D,176D/176R Qty 2 Northwave Low viscosity for exceptional penetration

Low viscosity for exceptional penetration into all parts of the chain

The Elite Direto XR-T is the biggest evolution of the Elite Direto trainers featuring an integrated power meter

Comes with bottle cage mounting screws

The finishing touch to your training area

- 1 x Shimano ferrule

Zipp Service Parts Hub Bearings Kit For 77/76D,176D/176R Qty 2 Northwave Low viscosity for exceptional penetrationSpecifications: Size (Inner x Outer x Width): 17 mm x 30 mm x 7 mm Designation: 6903, 61903 Compatibility: 176 hubs 177 hubs 176 Disc hubs 177 Disc hubs 76 Disc hubs 77 Disc hubs 30 Course wheels 30 Course Disc wheels 202 wheels as of 2015 202 Firecrest wheels as of 2015 202 Firecrest Disc wheels 302 wheels 302 Disc wheels 303 Firecrest wheels as of 2015 303 Firecrest Disc wheels 303 Firecrest 650B Disc wheels 404 Firecrest wheels as of 2015 404