Hi,

Im kitting out a bike with a new 105 groupset but I'm not sure of best ratios to suit me.

I ride 50 mile rides at the weekend but use my bike for commuting 5 miles to work each day.

I was considering a compact crank setup 53/39 and 12-25 cassette.

I am 6ft tall so will go for 175mm cranks.

My local area is about 50% hills and 50% flat!

My overall fitness is pretty good.

Would this set up be ok for what im looking for? If not, anyone sot another suggestion i might try?

Thanks in advance.