Fatal Swan
Senior Retro Guru
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I should know this already, but...
Using a disc-braked CX/gravel frame I'm cobbling together a bike to serve as a bad weather road bike for the winter, and change the tyres for a light-duty gravel/towpath bike for the summer.
My main remaining issue is the gearing. I'm not ready to go 1x on the front for a bike that's going to see mostly road use, so it's a double chainset. And I want an outer chainring of top gear of say 48t for the road. But using a compact road double crankset, the inner chainring only goes down to 34t or 33t at a push, which would mean I'd really need a bigger cassette and a higher mech capacity than I have, in order to bring the lowest gear down.
It's a low-budget build aiming to make use of as many of my existing spare parts as possible and I've got a decent XT triple crankset spare. I'm wondering whether I could just swap out the 44t chainring for a 48t, giving me effectively a 32/48 double. 16t difference should be fine for a road front mech, and I could then run an 11-34 cassette on the rear no problem.
The question is, will 32/48 on a triple crankset work with road STI's (and matching road front mech) or are the chainring spacing/angles involved not going to work?
Cheers!
Using a disc-braked CX/gravel frame I'm cobbling together a bike to serve as a bad weather road bike for the winter, and change the tyres for a light-duty gravel/towpath bike for the summer.
My main remaining issue is the gearing. I'm not ready to go 1x on the front for a bike that's going to see mostly road use, so it's a double chainset. And I want an outer chainring of top gear of say 48t for the road. But using a compact road double crankset, the inner chainring only goes down to 34t or 33t at a push, which would mean I'd really need a bigger cassette and a higher mech capacity than I have, in order to bring the lowest gear down.
It's a low-budget build aiming to make use of as many of my existing spare parts as possible and I've got a decent XT triple crankset spare. I'm wondering whether I could just swap out the 44t chainring for a 48t, giving me effectively a 32/48 double. 16t difference should be fine for a road front mech, and I could then run an 11-34 cassette on the rear no problem.
The question is, will 32/48 on a triple crankset work with road STI's (and matching road front mech) or are the chainring spacing/angles involved not going to work?
Cheers!
