chainring size

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TAY72
Posts: 5
Joined: Sat Dec 09, 2006 5:36 pm
Location: CHESTER

by TAY72

Hi all, i have been getting a pain in my hip on right leg only after riding for an hour or so.

I usualy ride a mountain bike with triple chainring but have been using the road bike more lately with a double which is narrower by 1/12 or so, could this be the problem and has anyone else experienced any trouble swaping from mtn to road bike or using different chainrings ect?

I have taken a week or so off training now so im not sure whether to leave the road bike until i get a wider chainring..

Any feedback would be appreciated.

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TheFatGuy
Posts: 505
Joined: Sat Jun 10, 2006 6:41 pm
Location: St Petersburg Florida

by TheFatGuy

More than the chainrings...

Do you have the same pedals on both bikes (are you wearing the same pair of shoes)? Cleat position has a lot to do with knee issues.

Also- is the seat in a similar position? make sure they are at the ame height and position over the BB.
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TAY72
Posts: 5
Joined: Sat Dec 09, 2006 5:36 pm
Location: CHESTER

by TAY72

I have the seat at same hight and position and have done for a while.

Cleats seem ok and foot position feels comfetable too, is there any way to check if your cleats are set up ok? i use shimanos which have plenty of float and the cleats seem to sit nicely in the centre so i think they are ok..

It seems to occured since riding more base training rides on the road but i still use the mtn bike for this in crap weather! :(

RollinOn27s
Posts: 1000
Joined: Thu Oct 06, 2005 4:17 am

by RollinOn27s

Are you referring to Q-factor? As in the width between your pedals/shoes changing?

I didn't quite get the original question but it sounds like this might be what you're talking about. If so, yes, Q-factor will usually change when going from a triple to a double.

TAY72
Posts: 5
Joined: Sat Dec 09, 2006 5:36 pm
Location: CHESTER

by TAY72

Yes sorry i didnt know it was called Q factor, that is what i mean.

So are injury problems common when rideing a bikes with different Q factors, like swapping from road bike to mtn bike?

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