Total Ceramic Upgrade Kit for a pair of Shimano Wheelset (Front&Rear) including:
Shimano Ultegra WH 6800 / WH6700
Upgrade your Steel ball bearing to Ceramic
The Ball Retainer or Hub Accessory won't be included
Description
Ceramics Balls:
- 3-5 times longer lifetime than steel bearings
- 5-9 watts energy saving with the wheel ceramic bearing upgrade
- Grade 3 Si3N4 ceramic balls - 8 times rounder and 4 times smoother than steel balls
- ABEC 5 - mirror polished alloy steel bearing races lead to extremely lower friction
- C 3 clearance - less vibration and smoother riding