Originally Posted by 5-7HEAVEN
Change the engine sprocket to 6t and the first input jackshaft sprocket to 24t. You'll arrive at a negligible fraction off of the first calculator.
You will arrive at 6.87:1 on first calculator and 6.85 on second calculator, which is WAYYY too high of a gear for 6,000rpm/7,000rpm engine range.
The last sprocket combo from crankset to rear drive sprocket is NOT a gear reduction.
For 40mph at 6,000rpm, gear ratio should be 11.6:1.
For 40mph at 7,000rpm, gear ratio should be 13.55:1.
more info later.
How do the new numbers look to you?
Originally Posted by Saddletramp1200
I am most likely wrong, but I may see what is getting at. I have seen a sprocket with 25 teeth that was 4 inches IN DIA. I have seen a sprocket with 25 teeth 4 FEET tall. Is this what your saying?
Yeah, that was pretty much my reasoning process..but as it turns out it was a flawed one..