Difference in rims

[petrolh34d]

Recntly bought two new tyres for my bike, and haven't got round to putting both of them on yet.

I was running 2.1 tyres before hand, and I'm not sure what width the rims are.

I'm now running a 2.35 high roller on the front, and have a 2.5 Minion for the rear.

My rear rim looks pretty narrow, and I was just wondering if the 2.5 Minion will be suitable for it.

Any advice appreciated, thanks.

[AndyL]

What are the rims? Iff mavic, the last two digits on their newer rims give the width internally in mm. For a 2.5, you'd want about a 21mm rim minimum I'd say. Mavic's site has tyre widths for their rims, or you'll normally find a sticker on the rim with widths and pressures on it.

If not a mavic, google the rim name, and the manu's site should have details of recommended tyre sizes.

[petrolh34d]

Thanks man, I will check this out.

[Conor]

put the 2.5" on the front!!

[the goat]

put the 2.5" on the front!!

yeah, bigger tyre up front ;)

[petrolh34d]

Hmm ok, I'll sort that out for the weekend.

Obviously I've got a thing to learn about MTbing, but I'd've thought that this would make rolling quite heavy?

[AndyL]

Front end grip more important than back end, you lose the front and thats usually an off, you lose the back and you can catch it, supposedly...

[petrolh34d]

The laws of physics would suggest this to be true.

I will try this and let you know how it goes, although is a Minion really suitable for a front tyre, or does it really matter?

[trailfox]

If its a minion DHF (front) then it'll be fine, if its a DHR (rear) it will also be fine but may not perform as efficiently as the front.

[Aul Han]

As above, and the "narrow" tyre on the rear will make the bike easier to pedal as well. I have 819 rims and 2.35 tyres and this works fine. I would even try 2.4 or 2.5.