OSPW Kactus Sport Product Carbon Cage Ceramic 17-17T Shimano 105 seri lama 4600 4700 5700 5800 105 tiagra
Product description *Suitable for SHIMANO transmission *17/17T super large size guide wheel set system *Saves 45% chain friction resistance compared to 11T guide wheels *Ceramic bearing version saves more than 2.2 watts of average power compared to the original transmission system *Full carbon fiber cage *Full 7075 aluminum alloy CNC cutting lightweight guide wheel and TC4 titanium alloy spindle *Color: Anode red, enamel, blue, gold,green *Ceramic bearing version Ceramic Bead Bearing Version NSK Steel Bearing Version *Weight: 17TH: 80g *The ceramic bearing version is 1.2 grams lighter than the steel bearing version
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