The hybrid ceramic bearings use grade 5 Si3N4 balls to help reduce resistance, saving energy and weight. Also with stainless steel inner and outer races to help against corrosion, HK1010 Needle bearing is also stainless.
The kit will suit the Speedplay Zero, X1, X2, Lightaction, Ti and Stainless.
The kit includes:
2 x 686-ZZ-HC Bearing
2 x MR137-ZZ-HC Bearing
2 x HK1010-SS Needle Bearing
2 x BS012 Viton O Ring
2 x 1/2inch INT Circlip
2 x Snap Ring
2 x M4 x 10 T20 Torque Bolt
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