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with Grade 10 balls
which is typically the primary cause for premature bottom bracket bearing failure
most capable gravity setups on the market
it does not harm the rubber
This bearing is used primarily by Industry Nine in their rear hubs
Enduro Bearings Derailleur Pulleys 12T-5mm XTR x 12spd w/XD-15 Black (BKCJ-0361) WTB with Grade 10 ballsBKCJ 0361 11 tooth, XD 15 Ceramic Hybrid Bearing, Machined Delrin Derailleur Pulleys for 12 speed Shimano XTR and XT Derailleurs (5mm bolt hole) The ultimate upgrade pulley. Guaranteed to last forever against corrosion Precision machined Delrin Derailleur pulleys featuring XD 15 Ceramic Hybrid, radial bearings for enhanced shifting performance and longevity. Designed and manufactured for performance, these pulleys feature CN (tight clearance) bearings
US$ 186.00
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US$ 17899.50
