PREMIUM ALUMINUM ALLOY: This bike derailleur pulley adopts quality aluminum alloy and ceramic material to ensure durable to use. It also can reduce drag force which can improve cycling efficiency.
ADDITIONAL ACCESSORY:It uses ceramic beads to protect the center bolt derailleur of the bicycle, and these pulleys run on smooth ball bearings.
COMPATIBILITY: This product is compatible for most of rear derailleur on the market and adjust to 7/8/9/10 speed .
GUARANTEE? If you are not satisfied with our product you received, you can send emails to us at any time. We will reply you instantly and help you solve your problem.
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