I have an Trek X01 with road gearing from the previous owner.

I want to get a better gearing for hills and offroad and have at my disposal a 22/32 deore chainset, a 11-34 cassette and derailleur; the brifters are Tiagra 10 speed; will it work?

Probably 😉
I’d just think that 32/11 is quite limiting. I’m running 44/30 12/32 and that gets me up most things.

You’ll need a 9 spd mtb mech, not a 10spd one. A road front mech might struggle with 22/32 but a mtb mech can be tricky to get working nicely with road shifters.

Chhers aP

Will the brifters pull enough cable is my initial thought.

Whats the average ring on 1x 9/10/11 that people use, it would be on 33 mm cross tyres; not those huge things that are the vogue.

a 22/32 deore chainset, a 11-34 cassette

way to many gears on the granny end.

22/34 – 0.64
32/11 – 2.9

I’ve got 11-40 50/34 on my bike.
34/40 – 0.85
50/11 – 4.5

Just to give you an idea of what easy gravel gearing would be around.

you’ll need a mtb BB which is wider than the road version so the front mech might struggle to shift out enough and the Q factor will be wider. if the shifters are 4700 versions they won’t play nicely with an mtb mech, other tiagra versions will work with 9sp mtb mechs though

you’ll need a mtb BB which is wider than the road version

If there actual any difference in the road and the mtb version? just curious, cause I was trying to diagnose a creak a while back and it’s just the middle bit plastic internal muck cover that’s different, was interchangeable.

Just wondered if there was any other differences? Never noticed when I had them out togther.

Just wondered if there was any other differences? Never noticed when I had them out togther.

Road bb cups are 1mm wider than mtb ones iirc

Ref the 1x question-
40t ring with 11/32-36 depending on course for dry.
36t ring with 11/30 for mud.
42t ring for road with 11/32.
All fine.

simondbarnes

Subscriber
Just wondered if there was any other differences? Never noticed when I had them out togther.

Road bb cups are 1mm wider than mtb ones iirc

cool, cheers.

cool, cheers.

But they run without spacers on a 68mm bb shell. You’ll need to add spacers to run a mtb chainset as the axle is longer.