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M660-M1 mountain bicycle crankset bcd96 chainring and crank
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1.Single chainring design of wide and narrow teeth to prevent chain drop
2. Four-claw split locking structure, no need for female nails, better lightweight
3. The single chainirng is lighter and the front gear is cancelled, effectively reducing weight and allowing riders to focus on Ride.
2. Four-claw split locking structure, no need for female nails, better lightweight
3. The single chainirng is lighter and the front gear is cancelled, effectively reducing weight and allowing riders to focus on Ride.