ski
New member
Is there any advantage to having a larger or smaller drive gear on the top or bottom if you end up with the same ratio in the end?
for example if i use a 19-39 to get a 2.05 ratio, what would the difference be if i used a larger gear on top like a 21-42 to get a 2.00 ratio.
Does a lager top gear accelerate differently or transfer power more efficiently? Or does it not make any difference as long as the ratio stays more or less the same.
for example if i use a 19-39 to get a 2.05 ratio, what would the difference be if i used a larger gear on top like a 21-42 to get a 2.00 ratio.
Does a lager top gear accelerate differently or transfer power more efficiently? Or does it not make any difference as long as the ratio stays more or less the same.
vipertripplexxx
New member
Probably not noticable, chains are fairly efficient, but bigger up top would stress the chain less. Here is what you get.....
Bigger up top, means more linear chain speed, less chain tension.
Smaller up top, less chain speed, but more chain tension.
Bigger up top, means more linear chain speed, less chain tension.
Smaller up top, less chain speed, but more chain tension.
B2SO
New member
- Joined
- Aug 18, 2003
- Messages
- 422
- Age
- 53
i have always been told , you want the largest bottom gear you can get to get the gear ratio you want , im running a 1.88 gear ratio=100 mph max , to get that ratio i went down one on the top and up three on the bottom (22/41)..dont know why , but thats what i was told by several people ..
larger top is better... the chain has to bend around less on a larger top gear reducing rolling friction. you can always put a bigger gear on the bottom too if you are gearing your sled. i have a 23/40 in my mountain srx which is like a 1.96 i believe. chain does not have much of a bend at all
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