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Look pedals falling apart



 
 
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  #21  
Old August 2nd 17, 03:56 AM posted to rec.bicycles.tech
John B.[_3_]
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Posts: 5,697
Default Look pedals falling apart

On Tue, 1 Aug 2017 13:06:13 -0700 (PDT), wrote:

On Monday, July 31, 2017 at 8:11:42 PM UTC-7, John B. wrote:
On Mon, 31 Jul 2017 10:01:10 -0400, Duane
wrote:

On 31/07/2017 9:44 AM, John B. wrote:
On Mon, 31 Jul 2017 07:58:01 -0400, Duane
wrote:

A couple of weeks ago, I went to a ride in New York where I had to carry
the bike on my roof rack. I got it set up and went to clip in but my
right pedal was missing. Luckily, I found it on the ground. It came
apart where the pedal attaches to the spindle. Look Keo 2. I had never
seen this. Typically I think pedals tighten with use. Anyway, I put
some locktite on it and didn't think about it.

Yesterday during a ride it happened to the guy in front of me. Same
thing. Came loose at the spindle. His pedals were Keo Classics. I was
wondering if anyone else has noticed this. Seems like an odd failure.

Are you saying that the pedal "body", for want of a better word, came
off the pedal spindle but the spindle itself was still in the crank
arm? Or that the whole pedal, spindle and all, came off?

I've known both to happen, in fact losing the pedal body and being
left with only the spindle sticking out is not that uncommon on
department store bikes, the really low end ones. I saw some on sale
the other day, 26" Ladies Model, single speed, with rear carrier and
front basket... and a kick stand, for US$ 35.00. Take two and you get
a 10% discount, the sign said :-)
--
Cheers,

John B.


Yeah, the spindle was still in the crank arm. These aren't department
store bikes. And Look KEO and KEO 2 are pretty high end pedals. I'm
not looking for comparisons to really low end bikes. I'm wondering if
anyone has seen this with this caliber pedal.


The first and last Look pedals I had was years ago now but looking at
the parts on the web it appears that the pedal body screws onto the
pedal axle, which is made in left and right hand threads to screw into
the crank arms.


Yes John, but the both of the screws that bolt the pedal to the

axle are normal threads so the left pedal insufficiently tightened
works loose.

Interesting. It would seem that loctite is the solution.
--
Cheers,

John B.

Ads
  #22  
Old August 2nd 17, 11:28 AM posted to rec.bicycles.tech
Duane[_4_]
external usenet poster
 
Posts: 1,546
Default Look pedals falling apart

James wrote:
On 01/08/17 22:01, Duane wrote:
On 01/08/2017 7:42 AM, John B. wrote:



I had wondered whether the right and left pedal bodies had right and
left threads where they screw onto the pedal axle. I know that the
axle has R & L threads where they screw into the crank arms but
couldn't find anything about the body and axle join.


They do.


I couldn't remember.

I wonder then whether they spin backwards in the air flow on a roof rack?


I guess that's what happened in my case. But this isn't the first bike or
even the first pedals on this bike that I've carried on my roof.

I found it odd that two bikes in such a short time had this happen when I
had never seen it before.

Anyway, loctite should take care of it.

We drove back from Korat, a city in central Thailand last Saturday and
when we stopped for lunch we parked next to a car with two bikes on
the top. I noticed that both bikes had the handle bars, the saddles,
and the pedals all wrapped with what looked like scrap cloth which was
tied on with twine.


Acid rain?

Maybe pedals do come off when exposed to the wind as someone suggested
:-)


I thought that was a possibility until it happened to the guy in front
of me Sunday. He doesn't have a roof rack and anyway we were 40k into
the ride.


Coincidence?

The only time I've transported my bike outside a car is on a tow bar
mounted bike rack. There's not much direct air flow there to get the
pedals spinning.




--
duane
  #23  
Old August 2nd 17, 11:28 AM posted to rec.bicycles.tech
Duane[_4_]
external usenet poster
 
Posts: 1,546
Default Look pedals falling apart

James wrote:
On 02/08/17 06:04, wrote:
On Monday, July 31, 2017 at 8:02:15 PM UTC-7, James wrote:
On 01/08/17 08:38,
wrote:


Isn't the "Max" the one with the small bolt on the outside of
the pedal? I had a couple of the original Shimano Delta Cleat
pedals unscrew like Duane was talking about but the Look Delta
pedals never did that. Perhaps they have reverse threaded left
pedal lock.


No Tom. There is no small bolt on the outside of the pedal.

http://www.wiggle.com.au/look-keo-2-max-pedals/


JS - here is what I'm talking about:

http://www.ebay.com/itm/LOOK-KEO-QUA...kAAOSwfpVZIg3H

(the left pedal is the one that will work loose) vs:

http://www.ebay.com/itm/Look-Keo-2-M...kAAOSwuLZY0V~H

As you can see the Max Blade set-up holds the axle in with a small
outside bolt.

The pedal is inserted into the crank and you tighten it in with a
long Allen if memory serves.



There is no bolt like that on my Look Keo 2 Max pedals. The "Blade"
must be something different.


And these were right pedals in both cases.

--
duane
  #24  
Old August 2nd 17, 02:55 PM posted to rec.bicycles.tech
[email protected]
external usenet poster
 
Posts: 3,345
Default Look pedals falling apart

On Tuesday, August 1, 2017 at 6:54:13 PM UTC-7, James wrote:
On 01/08/17 22:01, Duane wrote:
On 01/08/2017 7:42 AM, John B. wrote:



I had wondered whether the right and left pedal bodies had right and
left threads where they screw onto the pedal axle. I know that the
axle has R & L threads where they screw into the crank arms but
couldn't find anything about the body and axle join.


They do.


I couldn't remember.

I wonder then whether they spin backwards in the air flow on a roof rack?


We drove back from Korat, a city in central Thailand last Saturday and
when we stopped for lunch we parked next to a car with two bikes on
the top. I noticed that both bikes had the handle bars, the saddles,
and the pedals all wrapped with what looked like scrap cloth which was
tied on with twine.


Acid rain?

Maybe pedals do come off when exposed to the wind as someone suggested
:-)


I thought that was a possibility until it happened to the guy in front
of me Sunday. He doesn't have a roof rack and anyway we were 40k into
the ride.


Coincidence?

The only time I've transported my bike outside a car is on a tow bar
mounted bike rack. There's not much direct air flow there to get the
pedals spinning.


When you ride the pedals, it causes a contra-rotation force on the locking bolt. I had this unscrewing problem on other pedals if you didn't tighten the locknut enough.This only occurs on the left side if memory serves. The opposite side can tighten so much that you can't remove the damn thing.
  #25  
Old August 2nd 17, 02:58 PM posted to rec.bicycles.tech
[email protected]
external usenet poster
 
Posts: 3,345
Default Look pedals falling apart

On Tuesday, August 1, 2017 at 6:57:19 PM UTC-7, James wrote:
On 02/08/17 06:04, wrote:
On Monday, July 31, 2017 at 8:02:15 PM UTC-7, James wrote:
On 01/08/17 08:38,
wrote:


Isn't the "Max" the one with the small bolt on the outside of
the pedal? I had a couple of the original Shimano Delta Cleat
pedals unscrew like Duane was talking about but the Look Delta
pedals never did that. Perhaps they have reverse threaded left
pedal lock.


No Tom. There is no small bolt on the outside of the pedal.

http://www.wiggle.com.au/look-keo-2-max-pedals/


JS - here is what I'm talking about:

http://www.ebay.com/itm/LOOK-KEO-QUA...kAAOSwfpVZIg3H

(the left pedal is the one that will work loose) vs:

http://www.ebay.com/itm/Look-Keo-2-M...kAAOSwuLZY0V~H

As you can see the Max Blade set-up holds the axle in with a small
outside bolt.

The pedal is inserted into the crank and you tighten it in with a
long Allen if memory serves.



There is no bolt like that on my Look Keo 2 Max pedals. The "Blade"
must be something different.


http://www.ebay.com/itm/LOOK-KEO-QUA...kAAOSwfpVZIg3H

This was the original axle shape. Notice that the replacement is on the left side.

http://www.ebay.com/itm/Look-Keo-2-M...kAAOSwuLZY0V~H

If you look at this you can see that the lock bolt has been moved to the outside and a plastic end cap is installed over it.
  #26  
Old August 2nd 17, 03:08 PM posted to rec.bicycles.tech
AMuzi
external usenet poster
 
Posts: 13,447
Default Look pedals falling apart

On 8/2/2017 8:55 AM, wrote:
On Tuesday, August 1, 2017 at 6:54:13 PM UTC-7, James wrote:
On 01/08/17 22:01, Duane wrote:
On 01/08/2017 7:42 AM, John B. wrote:



I had wondered whether the right and left pedal bodies had right and
left threads where they screw onto the pedal axle. I know that the
axle has R & L threads where they screw into the crank arms but
couldn't find anything about the body and axle join.


They do.


I couldn't remember.

I wonder then whether they spin backwards in the air flow on a roof rack?


We drove back from Korat, a city in central Thailand last Saturday and
when we stopped for lunch we parked next to a car with two bikes on
the top. I noticed that both bikes had the handle bars, the saddles,
and the pedals all wrapped with what looked like scrap cloth which was
tied on with twine.


Acid rain?

Maybe pedals do come off when exposed to the wind as someone suggested
:-)


I thought that was a possibility until it happened to the guy in front
of me Sunday. He doesn't have a roof rack and anyway we were 40k into
the ride.


Coincidence?

The only time I've transported my bike outside a car is on a tow bar
mounted bike rack. There's not much direct air flow there to get the
pedals spinning.


When you ride the pedals, it causes a contra-rotation force on the locking bolt. I had this unscrewing problem on other pedals if you didn't tighten the locknut enough.This only occurs on the left side if memory serves. The opposite side can tighten so much that you can't remove the damn thing.


The bearing retaining ring on a Look Keo (or similar design)
pedal is on the 'other' side of the body so one might expect
the same effect on the inside right as the outside left.

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


  #27  
Old August 2nd 17, 03:19 PM posted to rec.bicycles.tech
Duane[_3_]
external usenet poster
 
Posts: 1,900
Default Look pedals falling apart

On 02/08/2017 10:08 AM, AMuzi wrote:
On 8/2/2017 8:55 AM, wrote:
On Tuesday, August 1, 2017 at 6:54:13 PM UTC-7, James wrote:
On 01/08/17 22:01, Duane wrote:
On 01/08/2017 7:42 AM, John B. wrote:


I had wondered whether the right and left pedal bodies had right and
left threads where they screw onto the pedal axle. I know that the
axle has R & L threads where they screw into the crank arms but
couldn't find anything about the body and axle join.


They do.

I couldn't remember.

I wonder then whether they spin backwards in the air flow on a roof
rack?


We drove back from Korat, a city in central Thailand last Saturday and
when we stopped for lunch we parked next to a car with two bikes on
the top. I noticed that both bikes had the handle bars, the saddles,
and the pedals all wrapped with what looked like scrap cloth which was
tied on with twine.


Acid rain?

Maybe pedals do come off when exposed to the wind as someone suggested
:-)


I thought that was a possibility until it happened to the guy in front
of me Sunday. He doesn't have a roof rack and anyway we were 40k into
the ride.


Coincidence?

The only time I've transported my bike outside a car is on a tow bar
mounted bike rack. There's not much direct air flow there to get the
pedals spinning.


When you ride the pedals, it causes a contra-rotation force on the
locking bolt. I had this unscrewing problem on other pedals if you
didn't tighten the locknut enough.This only occurs on the left side if
memory serves. The opposite side can tighten so much that you can't
remove the damn thing.


The bearing retaining ring on a Look Keo (or similar design) pedal is on
the 'other' side of the body so one might expect the same effect on the
inside right as the outside left.


Like I said, this was the right pedal in both cases. But they are
reverse threaded looking at it from the side so I would assume also that
pedaling them would make them tighter.
  #28  
Old August 2nd 17, 03:23 PM posted to rec.bicycles.tech
AMuzi
external usenet poster
 
Posts: 13,447
Default Look pedals falling apart

On 8/2/2017 9:19 AM, Duane wrote:
On 02/08/2017 10:08 AM, AMuzi wrote:
On 8/2/2017 8:55 AM, wrote:
On Tuesday, August 1, 2017 at 6:54:13 PM UTC-7, James wrote:
On 01/08/17 22:01, Duane wrote:
On 01/08/2017 7:42 AM, John B. wrote:


I had wondered whether the right and left pedal bodies
had right and
left threads where they screw onto the pedal axle. I
know that the
axle has R & L threads where they screw into the crank
arms but
couldn't find anything about the body and axle join.


They do.

I couldn't remember.

I wonder then whether they spin backwards in the air
flow on a roof rack?


We drove back from Korat, a city in central Thailand
last Saturday and
when we stopped for lunch we parked next to a car with
two bikes on
the top. I noticed that both bikes had the handle
bars, the saddles,
and the pedals all wrapped with what looked like scrap
cloth which was
tied on with twine.


Acid rain?

Maybe pedals do come off when exposed to the wind as
someone suggested
:-)


I thought that was a possibility until it happened to
the guy in front
of me Sunday. He doesn't have a roof rack and anyway
we were 40k into
the ride.


Coincidence?

The only time I've transported my bike outside a car is
on a tow bar
mounted bike rack. There's not much direct air flow
there to get the
pedals spinning.

When you ride the pedals, it causes a contra-rotation
force on the locking bolt. I had this unscrewing problem
on other pedals if you didn't tighten the locknut
enough.This only occurs on the left side if memory
serves. The opposite side can tighten so much that you
can't remove the damn thing.


The bearing retaining ring on a Look Keo (or similar
design) pedal is on the 'other' side of the body so one
might expect the same effect on the inside right as the
outside left.


Like I said, this was the right pedal in both cases. But
they are reverse threaded looking at it from the side so I
would assume also that pedaling them would make them tighter.


another great hypothesis ruined by actual reality

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


  #29  
Old August 2nd 17, 05:07 PM posted to rec.bicycles.tech
[email protected]
external usenet poster
 
Posts: 3,345
Default Look pedals falling apart

On Wednesday, August 2, 2017 at 7:08:06 AM UTC-7, AMuzi wrote:
On 8/2/2017 8:55 AM, wrote:
On Tuesday, August 1, 2017 at 6:54:13 PM UTC-7, James wrote:
On 01/08/17 22:01, Duane wrote:
On 01/08/2017 7:42 AM, John B. wrote:


I had wondered whether the right and left pedal bodies had right and
left threads where they screw onto the pedal axle. I know that the
axle has R & L threads where they screw into the crank arms but
couldn't find anything about the body and axle join.


They do.

I couldn't remember.

I wonder then whether they spin backwards in the air flow on a roof rack?


We drove back from Korat, a city in central Thailand last Saturday and
when we stopped for lunch we parked next to a car with two bikes on
the top. I noticed that both bikes had the handle bars, the saddles,
and the pedals all wrapped with what looked like scrap cloth which was
tied on with twine.


Acid rain?

Maybe pedals do come off when exposed to the wind as someone suggested
:-)


I thought that was a possibility until it happened to the guy in front
of me Sunday. He doesn't have a roof rack and anyway we were 40k into
the ride.


Coincidence?

The only time I've transported my bike outside a car is on a tow bar
mounted bike rack. There's not much direct air flow there to get the
pedals spinning.


When you ride the pedals, it causes a contra-rotation force on the locking bolt. I had this unscrewing problem on other pedals if you didn't tighten the locknut enough.This only occurs on the left side if memory serves. The opposite side can tighten so much that you can't remove the damn thing.


The bearing retaining ring on a Look Keo (or similar design)
pedal is on the 'other' side of the body so one might expect
the same effect on the inside right as the outside left.

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


Not at all Andrew - the force is on the capital bearing and not the outside bushing. These pedals are throw-aways in the first place as far as I can make out from their construction.

The pedals I prefer are the CX-6 Delta pedals but they are throw-aways as well and are no longer made.
  #30  
Old August 2nd 17, 05:09 PM posted to rec.bicycles.tech
[email protected]
external usenet poster
 
Posts: 3,345
Default Look pedals falling apart

On Wednesday, August 2, 2017 at 7:19:09 AM UTC-7, Duane wrote:
On 02/08/2017 10:08 AM, AMuzi wrote:
On 8/2/2017 8:55 AM, wrote:
On Tuesday, August 1, 2017 at 6:54:13 PM UTC-7, James wrote:
On 01/08/17 22:01, Duane wrote:
On 01/08/2017 7:42 AM, John B. wrote:


I had wondered whether the right and left pedal bodies had right and
left threads where they screw onto the pedal axle. I know that the
axle has R & L threads where they screw into the crank arms but
couldn't find anything about the body and axle join.


They do.

I couldn't remember.

I wonder then whether they spin backwards in the air flow on a roof
rack?


We drove back from Korat, a city in central Thailand last Saturday and
when we stopped for lunch we parked next to a car with two bikes on
the top. I noticed that both bikes had the handle bars, the saddles,
and the pedals all wrapped with what looked like scrap cloth which was
tied on with twine.


Acid rain?

Maybe pedals do come off when exposed to the wind as someone suggested
:-)


I thought that was a possibility until it happened to the guy in front
of me Sunday. He doesn't have a roof rack and anyway we were 40k into
the ride.


Coincidence?

The only time I've transported my bike outside a car is on a tow bar
mounted bike rack. There's not much direct air flow there to get the
pedals spinning.

When you ride the pedals, it causes a contra-rotation force on the
locking bolt. I had this unscrewing problem on other pedals if you
didn't tighten the locknut enough.This only occurs on the left side if
memory serves. The opposite side can tighten so much that you can't
remove the damn thing.


The bearing retaining ring on a Look Keo (or similar design) pedal is on
the 'other' side of the body so one might expect the same effect on the
inside right as the outside left.


Like I said, this was the right pedal in both cases. But they are
reverse threaded looking at it from the side so I would assume also that
pedaling them would make them tighter.


Remember that when you put pressure on the pedal the ball bearing reverses the direction of the forces so perhaps I'm all screwed up since the anti-seizure medicine makes it difficult to visualize things.
 




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