Question about Mongoose Tech 4 Full Suspension Mountain Bike

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My bike pedal fell off and i was wonder how i could fix it. It's the pedal and the shaft piece.

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If there is only a stub sticking out on the pedal arm then try to clamp a vise grip pliers on to get it off. If it has broken off flush you will have to drill a hole and use an easy out tool to get it loose. Good Luck

Posted on Aug 30, 2010


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Mongoose xr-75 pedal & crank fell off of bike

I actually found a bike today with an enclosed crank case. Your fix would be simple if it is the same. What you need is to replace the set screw that came out the crank and pedal. When you look at the crank that fell off down where it attaches you should notice a hole without a set screw in it. Find one to fit in that and then put it back on the bike. If you have not figured this out or need more clarification just let me know.

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How do I fix a bike pedal that fell off and is stipped?

If the pedal post is stripped get a new pedal. If the crank side of it is stripped you can just replace the crank and put new pedals on it.

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Shift pedal snapped off when bike fell off kick stand. the shaft has a clean break.

If you are saying the shift shaft going into the case has broken just outside the casing, you would be best to replace it as opposed to having it welded. If you refer to the pedal mount shaft then you could possibly weld it then grind and file for a better appearance. A new shaft would cost about $41.00. My concern is whether or not a shift fork has been bent when the bike fell. If a fork is bent the shifting will be stiff, sometimes to the point the pedal is rock hard and just plain will not shift at all. Or it may shift up but not down or vice-versa. A bent shift fork is a VERY expensive repair and not one I would recommend to the home mechanic. The entire engine has to be torn down. Please rate my answer. Thanks. tombones49_162.gif

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My son has the Huffy rock out bike. The pedal fell off, and so I was sent the whole single arm crank and new pedals. I have no owners manual, and no assembly instructions whatsoever. Along with the crank...

The reason the pedal fell of is because of a bad set up. Who assembled the bike? If, you did, guess what! You did not tighten the pedal to the crank arm to begin with. If, Walmart or other discount store did it, have them fix it. You have to understand. you bought the bike without professionals putting it together and sometimes that is a problem when you don't have the knowledge of what you are doing. You have to pay one way or another. When you let a kid ride a bike that is not assembled correctly you are endangering them. My advice is :Get it fixed right.

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I can't remove the pedals - I want to remove these

Be advised the left pedal is left-threaded. Get yourself a nice Park brand pedal wrench.

What fixing nut?

How to:

Apr 01, 2010 | Shimano America PD-M540 MTB SPD Mountain...

1 Answer

I just got a roadmaster mt bike for christmas and now everytime I pedal it makes a thump noise. It only happens when I pedal but when I'm coasting it does not.

That could very well be a problem with the pedal shaft, or it might be a problem with the pedals not being fixed tight to the shaft. If the bike is still under warranty, best to take it back and have them either adjust or replace. If it's a shaft problem, repair would be expensive outside warranty.

Feb 24, 2010 | Cycling

1 Answer

Foot gear pedal moves but bike wont go into gear. pedal is reaaly lose and ideas? the pedal got caught on a gate an was ripped down which has caused the problem. pedal feels like it has been stripped on...

Wish I could see the bike but the following may help. Remove the shift pedal and look at the mounting hole. It should have groves in it which align with groves on the outside on the shifting shaft. If the groves on the shaft and / or the pedal are messed up, ( stripped ), then you need to decide what repair will work. Try re-mounting the pedal on the shaft and see if tightening the mount bolt extra tight will work. If not, you could pin the shift lever to the shaft. I don't know what bike this is but you probably have more serious problems than just a stripped shift lever or stripped shaft.......

...... A shift drum pin may have been sheared. The shift lever return spring and / or shift lever drum spring may have been broken or knocked out of place. The shift lever positioning C ring may have broken allowing the shift shaft to be out of place and not catching the shift pins. These are relatively minor problems to fix but the likelyhood is that you now have a bent shift fork......

...... A bent shift fork requires the engine be removed and torn down to about 75 pieces then reassembled with new shift fork(s). I have done this repair many times as a bike shop mechanic. Some special tools are needed and a good bit of knowhow. This is not a repair for the beginner. How about you take the bike to a dealer and ask them to just glance at the shifter and see what they think. It won't cost you to just ask for their ideas on the problem. Please post how you come out on this. I am curious what you find.

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The tech drive petal on my Kirby G5 fell off. How do I fix it?

I assume you mean the pedal on the back of the transmission, if so, if has come apart, there is a piece that is pressed onto the shaft. Best to replace the pedal assm., the old one may not stay together anymore, you will have to pull the transmission out to replace it.

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