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is it possible to break cleats ?
is there some sort of mechanical load limit that a cleat can take before it either breaks, or breaks the part of the shoe to which it attaches ? or maybe the pedal ?
SPD-SL looks like it should be able to handle plenty of force on the way down - but on the way up ? could it be broken by pulling up too violently ? how's the durability of SPD ? to me it looks like it should rip out a chunk of the shoe in no time. i don't really understand how so much force can be transferred to such a tiny piece of plastic on shoe bottom. maybe if the shoe was made out of steel ;) also do SPDs feel stable ? do they wobble around and squeak or screech as you pedal ? after days of deliberation i am no closer to deciding on SPD vs SP-SL. my other thread answered the logistics questions for me - both SPD and SPD-SL passed that one. but i still need to make a choice. so now i need to analyze the mechanical angle. thanks in advance. |
Never mind, I remember you now.
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IIRC, you're the guy that supposedly generates more power than a TDF pro and disdains all things aerobic. As such, you're probably better off finding a different activity than cycling. The equipment is just not designed for such herculean stress. You'll surely rip the shoes apart if you don't bend the pedal spindle or crank arm first.
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The soles of bike shoes tend to made of fiberglass or carbon fiber.
I think you have found your best recreational activity: Jumping to ignorant conclusions. |
The answer is yes.
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I don't think we have had this much entertainment in at least a month. |
Anything can break
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He's a troll. No point in replying.
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Just for S&G, I did break a Look ARC cleat once. I unclipped my left foot, and leaned to my right. In the panic, my right foot wrenched and snapped the cleat in half, sending a part flying across a parking lot full of cyclists, but harmlessly landing on the sidewalk.
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i expect to produce up to about 300 lbs of force on the pedal when i need to pass somebody. as an engineer when i look at the mount for SPD cleat it doesn't look like it was designed to handle any kind of stress at all. the mount on SPD-SL looks very good. but then the cleat itself is made out of crap. |
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unfortunately i am not a materials expert so i don't know what the properties of fiberglass are. all i know is it doesn't seem to be used in any serious applications - instead kevlar, titanium or carbon fiber go there. but it's not so much the material worries me in case of SPD as the geometry of the mount. only two screws that are so close together that you can consider them one. |
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i am more concerned about the shoe itself as it costs much more than the cleat ... |
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but in case of SPD it isn't clear what exactly will fail first. that bothers me. |
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Yes I guess you should question one of the most used pedal systems out there. I guess the guys who designed it have no idea what they are doing. I mean serously how could they sell so many of those cheap things? The 2 bolt system is the most used mtb pedal cleat out there weather it be shimano, eggbeater, time, or my personal favorite frogs. I have never seen anyone rip a properly installed cleat of a shoe. |
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