SammyH Posted March 26, 2019 Report Share Posted March 26, 2019 I bought a second hand Onza zoot last week as my first trials bike and have been loving it. I was riding a couple of days trying a few tricks and fell off, and the bike landed heavily on the right hand pedal. The impact messed up the threads in the crank and the pedal will not stay screwed in properly, it keeps coming out at an angle when I'm riding the bike. I need to buy a new set of cranks but am not sure if I need to get a whole new free-wheel set because the free-wheel is in the bottom bracket somehow- I've never seen this before and am confused about how it works! Can I just replace the cranks or do I need to replace the free-wheel as well if they are attached? Thanks. Quote Link to comment Share on other sites More sharing options...
Mark W Posted March 26, 2019 Report Share Posted March 26, 2019 You can just replace the cranks, you can unscrew the freewheel and re-use it. If you're UK-based, may be worth chatting to the guys at TartyBikes about helicoiling the crank arm - they fit a steel threaded insert into the crank arm meaning you can keep using it. If pedals aren't kept tight on bikes when they're new they'll quite often strip the pedal threads, and this insert has kept a lot of people's cranks running after that's happened. It works well It's quite a bit less than a new pair of cranks so could save you some money. Quote Link to comment Share on other sites More sharing options...
SammyH Posted March 26, 2019 Author Report Share Posted March 26, 2019 Yeah Im from the UK, I live in Bristol as well. Yeah my mate suggested that as an option, just had another look at it and have taken the pedal out and the crank is completely knackered, theres no way it will be able to be threaded again, at least not so my pedal will fit back in. So now I have to hunt for a new crankset Quote Link to comment Share on other sites More sharing options...
robkerly Posted March 26, 2019 Report Share Posted March 26, 2019 Hi Sammy. I happen to have a lonely drive side onza zoot crank arm. I'm in Bristol fairly frequently working or riding. Happy to jam it on for you one day when I'm around. Quote Link to comment Share on other sites More sharing options...
Mark W Posted March 27, 2019 Report Share Posted March 27, 2019 14 hours ago, SammyH said: Yeah Im from the UK, I live in Bristol as well. Yeah my mate suggested that as an option, just had another look at it and have taken the pedal out and the crank is completely knackered, theres no way it will be able to be threaded again, at least not so my pedal will fit back in. So now I have to hunt for a new crankset They drill out the existing pedal threads then insert the helicoil - the outer threads of the helicoil are larger than the original pedal threads, so even if it's totally stripped out it would probably still work. When I was there we got some mashed cranks in and they were still salvageable. If you can't get hold of Rob's crank you could try shooting them an e-mail with a photo of your crank to see what they think Quote Link to comment Share on other sites More sharing options...
SammyH Posted March 27, 2019 Author Report Share Posted March 27, 2019 Oh ok, it might work then. I was thinking that when they drilled through the hole it would make the hole bigger, meaning that the pedals would no longer fit in as the hole would be too big. If that was alright with you that would be great Rob, I'd be more than happy to pay you for the crank. That would save me so much time searching for the right pair of cranks to fit for the bike, when would you next be in Bristol? Am v busy at the moment but will definitely be able to find time to get the crank - its killing me looking at the bike every day and not being able to ride it! Quote Link to comment Share on other sites More sharing options...
robkerly Posted March 27, 2019 Report Share Posted March 27, 2019 No worries, its always nice to help out new people to the scene. i'm meeting some mates tomorrow evening in Bedminster, depending on whereabout in Brisol you are i could swing by before that, around 6. After that im away for a couple of weeks. 1 Quote Link to comment Share on other sites More sharing options...
SammyH Posted March 28, 2019 Author Report Share Posted March 28, 2019 (edited) I'll be at work at 6 at Pizza Hut on Cheltenham road, its the same road as Gloucester Road just further down. I can meet you there or I could try and come closer to where you'll be. If you come I can definitely sort you out with a some free pizza! Edited March 28, 2019 by SammyH Quote Link to comment Share on other sites More sharing options...
SammyH Posted March 28, 2019 Author Report Share Posted March 28, 2019 Or I could meet you some other place if its easier for you. Quote Link to comment Share on other sites More sharing options...
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