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wanting to change the gearing on my tourer. is is too big for me at present.
I like to sit and spin up hills, and have entered a touring and hill climbing challenge in the new year
so my bike is equipped with shimano 105 rear mech and front mech, with durace barcons mounted as thumbies now. with a tiagra 30/40/50 chainset.
cassette is 10 spd 11/32
I want to put on a 22/32/42 chainset, with a 12/40 10 spd cassette
easiest options are?
anyone
For the front, you'll need any 9 or 10spd chainset with the suitable size chainrings and a mtb triple front mech.
For the rear I'd try fitting a roadlink to the current rear mech and seeing how that coped. I'm not sure anyone does a 12/40 cassette so may have to be an 11/40 but I could be wrong.
You could just stick a 24 tooth granny on your existing chainset. Makes a massive difference.
But if you're running flat bars then just grab any old 3x set up off an MTB....
smaller ring wont fit on tiagra chainset.
22/40 is a MASSIVE gear, I doubt you could pedal it and go fast enough to balance.
I've got a 24/36/46 triple from Spa Cycles, with a 12-28 cassette, and that still gives a pretty spinny lowest gear for loaded-uphill duties whilst keeping nice small gaps between gears. I'd be tempted to swap to the triple you want, and see how you get on with your current cassette, cos 22/32 should get you up pretty much anything.
just ordered a triple to try with my other stuff already on.
Yeah - I was going to suggest the opposite end first, a 9-speed MTB mech and a bigger cassette. Certainly worth changing one at a time.
Agree with IHN, 22/40 would be a nightmare. You'd need to put ballast in your front paniers to keep the front wheel down! Changing chainset first seems the way to go, see how you get on.
22/ 40 sounds fine to me. especially if its a 29er / 700c. If you sit and spin at a decent cadence this would be around 2.5 mph. I have sometimes wished for lower than 22/34 on my 26" wheeled bikes.
I would have liked lower than 22/32 on my tourer for a couple of climbs on my last tour. Those saying 22/40 would be impossible to pedal are wrong.
I’ve got a 24/36/46 triple from Spa Cycles, with a 12-28 cassette,
Shimano still do [url= https://bike.shimano.com/en-EU/components/trekking.html ]trekking groupsets[/url]. I think that the rear mech. for the XT version (RD-T8000) has a 47 tooth capacity so you should be able to run 48,36,26 and 11-36 out back, which gives quite a nice spread.
I run 26 39 53 front with a 11-36 9sp block at the back. Even at 26*36 I could use a lower gear when fully (4panniers plus carradice) loaded and it's hot.
I would quite like a 40t rear but don't think they come in 9sp sadly.
I think it impossible to have too low a gear on a touring bike.
22/40 shouldn't be a problem. I know somebody who uses 20/39.
Scruff, I've had no problems taking the 11 off the top of an 11-36 and putting a 39 on the bottom.
I would quite like a 40t rear but don’t think they come in 9sp sadly.
Sunrace make them , have one on my cx (1x) and it shifts grand
sunrace 40 tooth cassette ordered and a slx mech.
22/40 here we come
22/40 here we come
...just not very quickly 😉