Quote:
Originally Posted by Surfinglbi23
I like Renthal sprockets ... I have a 520 on my R1 man and its great, holds up fine
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They're big in the dirt bike industry.
Afam and DID 520 here. Had the same set for 3 track seasons, just had a look recently and the teeth still have a nice square edge. No signs of rounding or "shark fining." With proper tension and lube care they'll last a long time.