I bought clipless pedals & shoes for the bike yesterday and need a bit of help. I tried to get the straps off the cranks, but they are not budging. I think the shop where I bought the bike over tightened them and I am afraid I'll damage them if I torque too hard. Are the a "lefty loosy, righty tighty" or are the reverse threaded like plumbing? There is no allen in the back like the clipless pedals to get a good hold, so I have to do a metric wrench instead. Is there a way to steady the crank so I can apply enough pressure to get them off, OR am I better suited to take it to the shop and have them do it? I went with mountain bike shoes versus straight road shoes as I think I can strap in to the shoes on the pedals at tri T1, but want to come out of them entering T2 versus trying to strap our and I'd of course trash the clip running on road shoes. I think I may wait until after the 2 tris I have in the next month to use the clips as I don't think I'll be secure with them. Although, I may give them a try on Saturday and see how I do. I am going to start with the tension way down until I get the hang of clipping out in the attempt to not fall (which I've heard is a clip right of passage).
Slow down.
I tried to get the straps off the cranks, but they are not budging. What straps are you talking about?
There is no allen in the back like the clipless pedals to get a good hold I'm not sure what you are talking about here, but I'm certain whatever it is is not meant to be taking any force of any kind.
Lets start over.
I think you are trying to get your flat pedals off. Correct?
The left and right pedals are left and right threaded respectively to the crank arm.
Removing the pedals without a pedal wrench ($5) is hard. A C-wrench doesn't quite cut it usually, though in a pinch can work.
Sheldon has some tips below.
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What's the trick to removing pedals? Of the three times that I have tried to remove my pedals (I have two bikes and am in the process of exchanging/switching pedals) I have only succeeded once. The main problem is the pedals have been put on very tightly and I can't even budge the damn thing.
Left and right pedals have left and right threads respectively, and are best removed with a long handled 15 mm pedal wrench. Rather than using any clever wrench orientation or other methods to determine which way to tighten or loosen pedals, use the rule that rotating "forward" (as the wheels of the bicycle do) tightens and rotating "backward" loosens.
Pedals are often made with tight fitting threads in an effort to improve the hold of this poorly designed mechanical interface. The intent is to prevent relative motion under load although they move anyway. If that were not the case, the threads would not be left and right handed. That they move is also apparent from damage where the pedal axle frets against the crank face, the main causes of crank failures at the pedal eye. Besides damaging the crank face, fretting motion depletes thread lubrication and causes galling (aka welding) so that pedals often cannot be removed forcefully without damaging pedal shafts, wrenches, or cranks so that forceful removal strips threads.
To remove "frozen" pedals from an aluminum crank, remove the crank and pedal from the BB spindle, heat the pedal end of the crank over gas flame cooking stove until it sizzles to the wet touch. Using a pedal wrench, the pedal usually unscrews relatively easily without damage. If a lubricated pedal with clean threads does not screw in easily, a thread tap should be run through the crank to prevent galling on insertion. This is best done on the bicycle, where the crank is held firmly by the BB and prevented from rotation by the chain. To keep chain tension to a minimum (so the rear wheel does not spin), keep the pedal wrench as parallel to the crank as possible rather than as an extension to the crank.
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I would strongly advise against loosening the tension of the clips. If you get up out of the saddle and bear down and have any lateral play in the foot you could come out of the pedal. Most pedals out of the box are already set up quite loose and need to be tightened a few revolutions for saftey, not the other way around. Nobody falls over because they can't get out of the pedal. They fall over because they forget to get un-clipped until it's too late. It happens once to you and you will remember.