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Info
The Chain Reactor wraps the chain further round the front ring to prevent it flapping and getting thrown off over rough terrain.Chain Reactors come with a sealed bearing PU pulley as standard or run the optional Dual pulley and a Sideplate to keep the chain on and the tension constant in both front gears. Designed to run with geared chains (not singlespeed).
Specifications
Sizes 28.6mm 31.8mm 34.9mm
Weight 141g
Note
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