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John S.

John S.

0 Comments

John S.

John S.wrote a review of on March 31, 2014

4 5

Just ordered an outer ring. I friend who's opinion I really respect believes in these, I'm really curios to see how these chainrings work out. I think Rotor is on to something, theoretically it's changing the timing on the camshaft of an engine, the difference being, we're the motor.......... and my motor needs all the help it can get.

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