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#21
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Look pedals falling apart
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#22
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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 |
#24
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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
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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
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Look pedals falling apart
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#27
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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
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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
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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
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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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