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Whats Up With My Crank!?!?


Merchathon2k8

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Hi all,

My crank is clicking on every rotation and I am not sure what to do. I have been told to just tighten it up but what do I tighten. Do I have to take the arm of and tighten it some how that way or something else. Please con someone help on what to do. Thanks, Ryan

To tighten it, you just tighten the bolt and the bottom bracket.

But I don't know what is causing the clicking noise.

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hiyya, keeping it simple there is an axle running through the bike (bottom bracket/BB) which the the crank arms fit onto. The crank arms are fastened to the bottom bracket by 2 bolts ( 1 on either side ). Have a go at fastening these mate... if need be it is best to replace the the arms and the BB ( not just a new BB vice versa ) and tighten 2-3 times a week. P.S the clicking could be anything from a snapped frame to dirt in the BB

Hope this helps you abit (Y)

Nick

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Square taper or ISIS? Either way, try taking both cranks off and giving the BB axle and crank tapers a good clean. Sometimes dirt can get into it, and crunches up and makes weird sounds when you pedal. If it's not that, could be a rounded taper (if it's square taper) or damaged bearings on the BB.

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I have had another look at it and it looks to be the freewheel that is moving a bit. Is it worth getting another crank? Hears what I had in mind from select bikes...Echo Urban CNC cranks-Colour: Blue, Echo bashring-Colour: Blue and Echo ISIS bb. What do you all think? Thanks for your advice so far :)

Or i forgot the Echo ACS Claws Welded (freewheel)

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Hey anybody know what to do if your crank keeps coming loose as you ride? Do you think I'm just not tightening it up enough or something?

ISIS or square taper? If it's square taper, you've probably rounded the crank slightly, so it doesn't grip the BB axle properly. Either bodge it with some small cut up coke can pieces, or get some new cranks!

If it's ISIS, just try cleaning/de-greasing the axle, and the crank. Clean the threads too, and then put some loctite on the bolt, and get it torqued up to the appropriate setting. - Can't remember it exactly, ask your local bike shop if they're good.

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ISIS or square taper? If it's square taper, you've probably rounded the crank slightly, so it doesn't grip the BB axle properly. Either bodge it with some small cut up coke can pieces, or get some new cranks!

If it's ISIS, just try cleaning/de-greasing the axle, and the crank. Clean the threads too, and then put some loctite on the bolt, and get it torqued up to the appropriate setting. - Can't remember it exactly, ask your local bike shop if they're good.

Thanks mate, it's sq. taper. I think I got it fixed. I don't think I had it tightened up enough. Rode it for about an hour and it didn't come loose again.

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Thanks mate, it's sq. taper. I think I got it fixed. I don't think I had it tightened up enough. Rode it for about an hour and it didn't come loose again.

Ah good. I'd keep the allen key/whatever tool for it with you when you're riding though, because if you ride around with the crank loose you'll ruin the taper in the cranks! And you reaaally don't want to be doing that! ;)

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Ah good. I'd keep the allen key/whatever tool for it with you when you're riding though, because if you ride around with the crank loose you'll ruin the taper in the cranks! And you reaaally don't want to be doing that! ;)

Yeah, I always keep some tools on me when I go riding.

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I have had another look at it and it looks to be the freewheel that is moving a bit. Is it worth getting another crank? Hears what I had in mind from select bikes...Echo Urban CNC cranks-Colour: Blue, Echo bashring-Colour: Blue and Echo ISIS bb. What do you all think? Thanks for your advice so far :)

Or i forgot the Echo ACS Claws Welded (freewheel)

I wouldnt get that freewheel, the engagement is crap. get a tensile or an eno. :)

Thanks,

Kiwi.

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Hi

If this is a reoccuring topic (your crank arm becoming loose) then use lock tite its is super glue but for bikes, But on the other hand you will have to use a LOT of force to undo the crank arm, or you could use gafa tape to pad the thread out so it tightley fits in the the crank arm and if its a bodge job u need use a wrapper like my freind did on my bike wrap the wrapper around the thread TIGHTELY then tighten up. this should work if not go to a local decent bike shop and see what they say and try and do it your self (DIY)

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In essance.... check for loose things

Especially play in bearings like in the pedals as mentioned above, another area to examine is the bb,

the biggest thing to look for is lateral movement - grab the cranks by the pedal area and wiggle in and out. if they move away from the centreline of the frame then the bb is wasted!

If your cranks have play in them (should notice this by one side having much more movement then the other) and you can afford it, then replace them and the bb (while your at it you may as well and this stops a worn bb ruining your cranks.)

hope that helped, and stay away from the ACS lol, tensiles are good, thats what i'd go for only ever heard good things and my mates is epic!

(just thought, check there that interferes with the cranks rotation, like something which catches (my cranks were catching my maggy body so i had to get a longer axle)

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