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Puyangqin
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Bicycle Rear Derailleur Ceramic bearing Pulley Jockey Wheel
All the results of the simulations and the experimentations indicated that the ceramic ball bearings' performances are very good, especially in the low load and high-speed environment.Size:11T/13T/17TStructure: aluminum alloy + ceramic bearingColor: Black/Red/Blue/green11T Size: about 41mm in diameter. About 8.5mm in thickne13T Size: about 51mm in diameter. About 8.5mm in thickne17T Size: about 67mm in diameter. About 8.5mm in thickneWeight: 11T about 12g (1 set)/13T about 15g (1 set)/17T about 20g (1 set)Fit for 4/5/6 MM roller screw axisApply for most of rear derailleur on the market
11T
13T
17T
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