ATB Pedals on a Road Bike

Hi,

Like many I own both a road bike and a mountain bike. I decided to
standardize on SPD pedals. My mountain bike came with Ritchey Logic
Pro ATB pedals which I love. I bought a pair for my road bike but the
pedals seem to be a tad large in diameter and don't seem to want to
thread into my road crank arms (Campy). My road bike is 20 years old
so maybe the thread diameter has changed over the years or maybe ATB
pedals aren't meant for road crank arms and you have to buy a road
pedal in SPD.

Is there any way to make this pedal work with these cranks? Would a
bike shop be able to rethread my crank arm for these pedals?

Thanks in advance,

Bob

Bob wrote:

Like many I own both a road bike and a mountain bike. I decided to
standardize on SPD pedals. My mountain bike came with Ritchey Logic
Pro ATB pedals which I love. I bought a pair for my road bike but the
pedals seem to be a tad large in diameter and don't seem to want to
thread into my road crank arms (Campy). My road bike is 20 years old
so maybe the thread diameter has changed over the years or maybe ATB
pedals aren't meant for road crank arms and you have to buy a road
pedal in SPD.

Is there any way to make this pedal work with these cranks? Would a
bike shop be able to rethread my crank arm for these pedals?

The thread should be the same. You might want to have a shop chase the
threads on your Campy cranks.

Art Harris

Harris wrote in message ...
Bob wrote:

Like many I own both a road bike and a mountain bike. I decided to
standardize on SPD pedals. My mountain bike came with Ritchey Logic
Pro ATB pedals which I love. I bought a pair for my road bike but the
pedals seem to be a tad large in diameter and don't seem to want to
thread into my road crank arms (Campy). My road bike is 20 years old
so maybe the thread diameter has changed over the years or maybe ATB
pedals aren't meant for road crank arms and you have to buy a road
pedal in SPD.

Is there any way to make this pedal work with these cranks? Would a
bike shop be able to rethread my crank arm for these pedals?

The thread should be the same. You might want to have a shop chase the
threads on your Campy cranks.

Art Harris

Ditto. I've used ATB pedals on my road bikes almost as long as
Shimano SPD has been around. Strangely, the only cranks that I can't
thread the pedals into by hand is my Campys. They'll still accept the
pedals, only they have to be wrenched in all the way.

OK, Campyphiles- do they use a slightly different thread shape on
their cranks? Or are they just built to a slightly tighter standard?

Jeff

Bob wrote:
Like many I own both a road bike and a mountain bike. I decided to
standardize on SPD pedals. My mountain bike came with Ritchey Logic
Pro ATB pedals which I love. I bought a pair for my road bike but the
pedals seem to be a tad large in diameter and don't seem to want to
thread into my road crank arms (Campy). My road bike is 20 years old
so maybe the thread diameter has changed over the years or maybe ATB
pedals aren't meant for road crank arms and you have to buy a road
pedal in SPD.

Is there any way to make this pedal work with these cranks? Would a
bike shop be able to rethread my crank arm for these pedals?

Barring actual damage it's probably an issue of tolerance, a
crank on the smallish end of normal with a pedal near the
big end of the range. Yes, see if your LBS can clear the
crank thread with a tap and try again . Grease threads of
course.

--
Andrew Muzi
www.yellowjersey.org
Open every day since 1 April, 1971

bob- I bought a pair for my road bike but the
pedals seem to be a tad large in diameter and don't seem to want to
thread into my road crank arms (Campy). BRBR

Have a competent LBS run a tap thru the crank pedal holes...they are a bit
tight for modern pedals but a quick tap run thru will solve your problems.

Peter Chisholm
Vecchio's Bicicletteria
1833 Pearl St.
Boulder, CO, 80302
(303)440-3535
http://www.vecchios.com
"Ruote convenzionali costruite eccezionalmente bene"

On 3 May 2004 20:52:48 -0700, (Jeff Wills) may
have said:

.... I've used ATB pedals on my road bikes almost as long as
Shimano SPD has been around. Strangely, the only cranks that I can't
thread the pedals into by hand is my Campys. They'll still accept the
pedals, only they have to be wrenched in all the way.

OK, Campyphiles- do they use a slightly different thread shape on
their cranks? Or are they just built to a slightly tighter standard?

I think Campy routinely cuts the threads at the bottom of the
tolerance for diameter, perhaps in an effort to reduce the amount of
motion in the interface under hard pedalling. I've dealt with very
few Campy cranks, but they all were like that, and after the second or
third experience I concluded that it had to be intentional...and
perhaps they knew what they were doing. I just thread carefully and
use a wrench all the way. Someone with a lot more Campy exposure
might be able to comment on whether those cranks have fewer loose
pedal problems.

--
My email address is antispammed; pull WEEDS if replying via e-mail.
Typoes are not a bug, they're a feature.
Words processed in a facility that contains nuts.

On 3 May 2004 20:52:48 -0700, (Jeff Wills) may
have said:
.... I've used ATB pedals on my road bikes almost as long as
Shimano SPD has been around. Strangely, the only cranks that I can't
thread the pedals into by hand is my Campys. They'll still accept the
pedals, only they have to be wrenched in all the way.
OK, Campyphiles- do they use a slightly different thread shape on
their cranks? Or are they just built to a slightly tighter standard?

Werehatrack wrote:
I think Campy routinely cuts the threads at the bottom of the
tolerance for diameter, perhaps in an effort to reduce the amount of
motion in the interface under hard pedalling. I've dealt with very
few Campy cranks, but they all were like that, and after the second or
third experience I concluded that it had to be intentional...and
perhaps they knew what they were doing. I just thread carefully and
use a wrench all the way. Someone with a lot more Campy exposure
might be able to comment on whether those cranks have fewer loose
pedal problems.


You're generous.
Or I'm cynical.

Every few years when we see a run of tight pedal threads in
Campagnolo cranks, I just assumed the toolroom hadn't kept up.

When it's overly difficult we clear with a tap. Forcing a
tight thread in aluminum can gall- pushing loose material at
the interface between the parts - and marf the thing.

--
Andrew Muzi
www.yellowjersey.org
Open every day since 1 April, 1971