TriPeak Headset Bearing (OD:51.9xID:40xH:8xA:45°/45°) - Pinarello Cycling Helmet ID：18mm / OD：28m / W：7mm

ID：18mm / OD：28m / W：7mm

soy lecithin

The Nylon and Polyester mesh back provides excellent insulation from external agents

which is the system Shimano uses to set up and control the Di2 shifting behavior

Snug Fit effectively eliminates noise and corrects bottom bracket tolerances

TriPeak Headset Bearing (OD:51.9xID:40xH:8xA:45°/45°) - Pinarello Cycling Helmet ID：18mm / OD：28m / W：7mmSealed AC Bearing Dimensions 51. 9 x 40 x 8 OD51. 9mm ID40mm H8mm Angular Contacts: 4545 Application: Headsets The TRiPEAK S Series features Po5 precision steel ball bearings, for reassuringly high smoothness and durability. 0. 005 mm for eccentricity (out of roundness) of the track in the inner race. Scope of delivery: 1x Bearing* *Image for illustration purposes only; it may not exactly represent the product.