motorpsycho
Active Member
i currently have the stock 44 tooth rear sprocket on my bike.
49 c.c., slant head, expansion chamber, high flow air filter, 20" frame with 20" wheels.
right now, i can get about 25-27 mph out of my bike on flat ground and it has plenty of take off power.
If i go to a 41 tooth sprocket, how much difference should i see in the top end?
how much bottom end will i lose? howmuch will the mid range rpm's drop?
If there will be a 2-3 mph increase, and little to no loss of bottom end, then i might make the swap.
I just want to see if i can get a couple more mph out of it, and lower the rpms when i'm just cruising at 15-20 mph.
I would just drop to a 36-38 tooth,but i'm afraid that i would lose too much bottom end.
I do not peddle my bike, i ride it like a motorcycle. since i am running 20" wheels, the rpms are pretty high at 15-20 mph.
would going to a 41 tooth sprocket be worth it? or will i not really notice a difference?
i read that you can expect a 1-2 mph increase for every tooth smaller you go. so, if that's true, going from a 44 tooth to a 41 tooth should give me about 3-4 mph more, and it MIGHT lower the mid range rpms a tiny bit....is it worth it? swapping a rear sprocket isn't a 10 minute job, so i don't want to waste my time if it won't make a difference.
my main concern is lowering the mid range rpms, rather than gaining top speed.....but a few more top end mph would be cool too.
49 c.c., slant head, expansion chamber, high flow air filter, 20" frame with 20" wheels.
right now, i can get about 25-27 mph out of my bike on flat ground and it has plenty of take off power.
If i go to a 41 tooth sprocket, how much difference should i see in the top end?
how much bottom end will i lose? howmuch will the mid range rpm's drop?
If there will be a 2-3 mph increase, and little to no loss of bottom end, then i might make the swap.
I just want to see if i can get a couple more mph out of it, and lower the rpms when i'm just cruising at 15-20 mph.
I would just drop to a 36-38 tooth,but i'm afraid that i would lose too much bottom end.
I do not peddle my bike, i ride it like a motorcycle. since i am running 20" wheels, the rpms are pretty high at 15-20 mph.
would going to a 41 tooth sprocket be worth it? or will i not really notice a difference?
i read that you can expect a 1-2 mph increase for every tooth smaller you go. so, if that's true, going from a 44 tooth to a 41 tooth should give me about 3-4 mph more, and it MIGHT lower the mid range rpms a tiny bit....is it worth it? swapping a rear sprocket isn't a 10 minute job, so i don't want to waste my time if it won't make a difference.
my main concern is lowering the mid range rpms, rather than gaining top speed.....but a few more top end mph would be cool too.
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