Lezyne Composite Matrix holder
With this super stable and wide CroMo lockring
Double clamping with 2x M6 screws
9 and 10 speed chains
Cane Creek 40 Series headset integrates IS41
BLB Track Cog Fixed-Ritzel 1/8" Ritzel:21 Zähne Lezyne Composite Matrix holderBLB Track Cog Fixed Pinion 1 8" CNC precision machined track pinion made of CroMo steel from BLB. Best quality at a low price. The small pinions are without, from 17 teeth the pinions have milled recesses to save weight. Material: CroMo CNC machined steel Thread: BSA Standard 1. 37x 24TPI thread Chain size: 1 8" Number of teeth: 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23 or 24 teeth Weight: 54g (15Z.) Colors: Black or Silver Polished