Excessive-hardness aluminum alloy physique adjustment, adjustment is extra exact. It may be adjusted barely in a number of locations to make sure correct velocity change efficiency.
RD-TY21B Black Rear Derailleur,Appropriate for six/7speed.
Quick and handy set up and straightforward upkeep.(Word:The bike rear derailleur is direct mount,not hub bolt mount .Please examine the mount sort of the unique half earlier than ordering.)
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