Does a smaller sprocket make a difference on a bmx?

Answer 1

Depends on if it's the older freewheel type rear hub or the newer cassette style rearl hub. Cassette hubs can take 9 tooth I believe, while the smallest freewheel is 15 or so.
Depends on the hub. A cassette hub will go down to 9T. Standard freewheel is 16T, but there are a few that go to 14 and 15.

they now make 8 tooth cassette hubs and 22 tooth sprockets to work for them. so 22 is the smallest out there so far

Answer 2

Yes. A smaller sprocket will have the rear wheel move more in relation to the cranks than a bigger sprocket. This will make pedalling heavier, but it will also make you go faster, if you're strong enough to keep the cranks turning.

Answer 3

Asking for the best size sprocket is like asking for the best size shoe - you get one that fits you, or in this case - your riding.

Do you want to go faster, but can't spin the cranks any faster? Get a smaller one. Do you feel like it's hard to get the bike moving? Get a bigger one.

Answer 4

Depends.

If you have strength left, but can't turn the pedals any faster, then a smaller sprocket can make you faster.

But if you think you could spin faster, but not any harder, then a bigger sprocket might make you faster.

Answer 5

Asking for the best size sprocket is like asking for the best size shoe - you get one that fits you, or in this case - your riding.

Do you want to go faster, but can't spin the cranks any faster? Get a smaller one. Do you feel like it's hard to get the bike moving? Get a bigger one.