Trying to decide.
3.4 FD, stock 165/65r14 tire size
2180rpm @ 65mph
1680rpm @ 50mph
3.4 FD, common 185/65r14 tire size
2085rpm @ 65mph
1605rpm @ 50mph
4.105 FD, stock tire size
2635rpm @ 65mph
2025rpm @ 50mph
4.105 FD, 185 tire size
2520rpm @ 65mph
1949rpm @ 50mph
Honda Insight 1.0L gearing - 3.208 final drive
2350rpm @ 65mph
1810rpm @ 50mph
I really think a 3.4 FD is a good idea, but it adds considerable cost to the build. I suppose the 4.105 wouldn't be the end of the world if I moved to a larger diameter tire too.
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