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Mitch
Reviewed in the United States on May 27, 2025
This sprocket fit my ultra bee perfectly. It may change your chain length depending on what size sprocket you were previously using but if you just install a new chain and cut it to length when you put on the sprocket, then you won't have any issues. Changing the sprocket size will change the number of chain links you need so instead of trying to calculate the exact chain length needed, just order a long chain with a chain breaker and cut it to whatever length you need.This sprocket has been working great for me so far and seems to be quite durable. At least durable enough to hold up to the stock Ultra Bee power. In theory a steel sprocket would be stronger but it never hurts to reduce the rotating weight a little bit.Overall, this is a good Ultra bee Sprocket. It fits the ultra bee hub well and has been holding up great for me so far. 10/10.
G
Reviewed in the United States on April 14, 2025
This appears to be a quality made rear sprocket that should offer some more torque (like it's really needed) if that what you're after. I believe OEM chain is 520-96 so you might not need a new chain, but in my experience it's best whenyou change out a sproket to a new one it's best to also change the chain at the same time(at least that's my philosophy in cycling transferred to dirtbikes, so I'm just inferring they are similar enough for this comparison). The 2025 ultra bee already has roughly 377 ft-lbs of torque and a crawling mode out of the box, so I'm not sure if this is really needed or not. This could be nice if you change to a 21/18 feont/rear wheel setup like lots of people do. I have yet to use the sprocket, so can't comment on much else, but will update when it eventually gets used.
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