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What Geer Raito do you people use on a mtb which i only for road use so its got slicks' on it.
46:13, probably unless I use 32:45. Or else it's 36:19
Where are you riding? How hilly or flat is it? How fit are you? Are you a spinner or a grinder? Too many variables for a sensible answer.
Is quite hilly round here as i l live in Chorley Lancashire. I would say i was spinner not a grinder if that helps. Drofluf
I'm just down the road in bolton. Running a similar bike to you for commuting for 6mothz or so. Used all sorts 34 11/13/15 Allways a compromise to be made but I'd say the 13 was best. Poasible to mash up most stuff, not too spiny on the way down.
I've just gone 1x10 so I have the set of gusset double 6's above I was about to bang on the bay if you fancy them?
Sorry was a bit frivolous last night.
On the road I run 42:16 , but that's on a road bike. On an mtb I guess you'd be limited to a 34T up front so I'd start at 34:13 or thereabouts and see how you get on.
Work in inches and the wheels size doesn't matter. I'd go for the high 60s.
When I used to run this setup I used 48-16 but it was relatively flat. You can fit big sprockets just use the outer position on the cranks.
Work in inches and the wheels size doesn't matter. I'd go for the high 60s.
^This. It's what I run on my commuter (about 69 gear inches) for a commute which is all, a reasonably gentle, uphill one-way. It's tougher than I'd choose if I had gears, but it more than does the job and it's not too spinny anywhere else.
I ran my old MTB on the road with 42:15 up in Cumbria, was good on the flat ok on slight inclines but a proper gurn-fest up steep hills.
~52" xc
~63" flat-ish xc or a mixture of xc and road
~70" road
IME these are a good place to start, raise or lower to suit you and your chosen route.
[url= http://sheldonbrown.com/gears/ ]sheldon's gear inches (and more) calculator[/url]
an MTB with 2.1 tyres 44:16 (an easy combo to get hold of) will give you 71" but if you've got knobbly tyres and suspension you may want to go a bit lower. Narrower slick tyres and rigid will save you a lot of effort.
+1 Donk...
I use 52" on my Winter SS MTB (32-16, 26" wheel) and ~74" on my commuter fixie (44-16, 27" wheel)...
If I was putting slicks on the SS MTB for road use I'd probably be looking to increase the ratio by fitting a ~13T sprocket at the back giving me ~64" I could get that up most hills (certainly those local to me) and It would be OK on flat roads, its an MTB not a road bike so I guess the gearing should be a shade easier to accommodate that