Originally Posted by
thugpipe
Ok I put in my actual cogs into sheldons calculator and it looks like your rockhopper's top end range is almost identical to my bikes range and if you wanted to get the lower end you could go with a 44t small chainring.
I need to measure as they do need ISO adapters.
sram don't do a 56/44 chainring.
with the little difference in
53/39 to 50/36, I'd go with the compact. I'm just worried about top speed, which only comes to around 21mph 80rpm
should I go with a slightly shorter crank to get rpm up?