Using the calculator I listed above I get a 9-1 ratio by dropping from 13 teeth to 10 teeth on the output (jackshaft to wheel). If I go from an 18 tooth to a 24 tooth on the input (motor to jackshaft) I get a 9.23-1 ratio. There is some chain clearance potential issues on the jackshaft to wheel if I change that sprocket while no issues with the larger input sprocket change.
So...two more questions....
1. Is going from a 6.923-1 ration to a 9.23-1 a real world, significant change? Yes...I know numerically it is...the question is will it really make a real world difference?
2. The other "question" (which is really an out loud thought) is that would the current set up work for say an average weight adult (say 180lbs)? If so, I will be selling this bike and I better off just leaving it as is. I wish I had a 180lb tester here......my kid is 6'5 220lb so he would be better than me I guess.
So...two more questions....
1. Is going from a 6.923-1 ration to a 9.23-1 a real world, significant change? Yes...I know numerically it is...the question is will it really make a real world difference?
2. The other "question" (which is really an out loud thought) is that would the current set up work for say an average weight adult (say 180lbs)? If so, I will be selling this bike and I better off just leaving it as is. I wish I had a 180lb tester here......my kid is 6'5 220lb so he would be better than me I guess.