Wheels

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CraigLyon

New Member
Hi all

This may sound like a ridiculous question however.......would you expect the front wheel to come into contact with my foot (or the pedal) when turning the bars. The reason for asking is that I've just purchased my first road bike (Jamis Satellite) and as I've always had a MTB I've never experienced this problem before.

TIA

Craig
 
It's called toeclip overlap and different bikes are prone to it depending on the size of your feet and the bike's geometry. Some people say it's not an issue. I wouldn't ride a bike where it was happening regularly, frankly.
 
This only occurs on badly designed bikes where the short toptube is not compensated for by giving the head tube a slight slope to carry the front wheel away from the foot.

As the above suggest ,it's no biggie as you quickly learn how to turn without too much trouble.

What's the length of the crank arms? -Could you get a shorter pair?
 

Chris James

Über Member
Location
Huddersfield
accountantpete said:
This only occurs on badly designed bikes where the short toptube is not compensated for by giving the head tube a slight slope to carry the front wheel away from the foot.

Depends on what you view as badly designed. Head tube angle and fork offset are best set to optimise handling, not toe overlap. For small people, or those with big feet, it can difficult to avoid overlap whilst retaining a short light frame and snappy steering.
 

fossyant

Ride It Like You Stole It!
Location
South Manchester
My Ribble has overlap with the tyre - very slight, only an issue at slow speed.

The Herety doesn't - and neither does the fixed with guards, but the fixed designed that way.

Just depends upon the frame.
 

515mm

Well-Known Member
Location
Carmarthenshire
accountantpete said:
This only occurs on badly designed bikes where the short toptube is not compensated for by giving the head tube a slight slope to carry the front wheel away from the foot.

As the above suggest ,it's no biggie as you quickly learn how to turn without too much trouble.

What's the length of the crank arms? -Could you get a shorter pair?

Bikes are badly designed because they have toe-overlap? Ummm. No.

All short folk (like me) who ride road racing bikes will have to 'suffer' T.O. because such frames are designed to be short, front-to-back to keep the handling sharp and the industry standard wheel is a bloody big one at 700c. This has been favoured historically because it yields a smoother ride over less than perfect surfaces.

By slackening the head tube angle (moving the front wheel forwards) you increase fork trail and wheelbase(the overall length of the bike) which both slow down the handling response - very useful on a touring bike, it makes it more stable - not so good for a performance machine where rapid changes of direction and precise steering are favoured. Think Volvo V70 vs a Lotus Elise.

I'm afraid that shorter cranks would not help that much and would have a significant effect on pedalling style IF one could find a pair short enough to eliminate the issue. A £100 solution to a 50p problem. With a little bit of experience, T.O. becomes irrelevant. One learns to keep one's feet away from the wheel. I know I did.

One could change to a touring bike - very comfortable indeed for commuting and long days in the saddle but not terribly exciting to ride. Only you will know which style of bike best meets your needs.





Christ I sound like a pompous arse.
 

trio25

Über Member
I get it being short, only an issue when I stop and turn the wheel, normal riding no problems!
 

raindog

er.....
Location
France
Didn't know it had anything to do with being short.:rolleyes:
I'm 6ft and have always had toe overlap on my racing bikes. Never notice it on the road, only when manouvering slowly in tight spaces. Nothing to worry about - if it was, the pro racers would be falling off all the time.
 

GrasB

Veteran
Location
Nr Cambridge
As said, typical of race bikes where you want to turn the bike quickly. In all honesty it basically comes down to toe overlap or crank/road interaction at high speed. Personally I think it's a lot more important to avoid the latter.
 

Ian H

Ancient randonneur
When I had my last audax frame built I was asked if overlap was an issue for me. I said no and I have a beautifully handling bike.
The fixed is the same, and still it's never been a problem in nearly 30yrs.
 
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