The groupset on my trusty BMC Aplenchallenge hybrid/gravel/commuter bike is on its way out so will need renewing in the new future
Currently have Shimano Sora 2×9
50-34 up front
11-32 in the rear
I’m looking at possibly going to a single chainring up front as I rarely use the smaller chainring…But what to go for?!
Happy to keep the 9 speed cassette as is but wondering what chainring would give me a decent spread of gears for (give or take) 80% flat-ish (mostly city) commuting
20% hills and climbs
I only use the smaller chainring on one hill (12% incline for around 0.4 mile) and only go halfway (at most) up (or is it down?!) on the cassette when I do
Something that will let me go quick on the flats and handle climbs without grinding up, prefer to keep the crank arms if possible so something compatible with those would be ideal
Suggestions please…many thanks