Originally Posted by
dvai
My wife bought a Sirrus X5.0.
Has a 40T crank. The rear cassette is 11-51T
I wonder if switching that 40T to a 42T would make a big difference in terms of speed. We don't live in an area with lots of hills.
Thoughts?
Is your wife looking for a higher top speed or better acceleration? If she is spinning out on the 40:11 gear combination, then by all means, install a larger chain ring, perhaps even a 44T.
A 11-51 cassette seems to be grossly unnecessary if you "don't live in an area with lots of hills," and the huge gaps between cogs in this cassette cannot be good for maintaining a steady cadence or for acceleration.