butterztrials123 Posted September 21, 2013 Report Share Posted September 21, 2013 I received my onza pro 2013 yesterday from tartybikes. Quick delivery as always with tarty. I assembled the bike and had no problems with that except the right pedal didn't go on as smoothly as the left one. I didn't heed it though an took it for a ride and all seemed fine and i thought the bike was fantastic. Today i took it for another ride and it seemed as good as yesterday, untill i noticed the pedal moved i took the pedal off to have a look and noticed the right crank arm threads were stripped. I was really disappointed as I loved the bike. I emailed both tarty and onza, even though i think the problem is that the crank thread is made of aluminium and the pedals are made of steel and aluminium is soft and steel is hard so the pedals stripped the threads. Quote Link to comment Share on other sites More sharing options...
isitafox Posted September 21, 2013 Report Share Posted September 21, 2013 Sounds to me like somebody screwed the pedals on the wrong sides. If that's the case then don't worry, you're not the first and definitely won't be the last to do it! Quote Link to comment Share on other sites More sharing options...
butterztrials123 Posted September 21, 2013 Author Report Share Posted September 21, 2013 No definitely didn't do that i triple checked before i put them on as i have heard of many people doing that Quote Link to comment Share on other sites More sharing options...
dezmtber Posted September 21, 2013 Report Share Posted September 21, 2013 It's pretty common. You cross threaded the pedal. It's not usually covered under warranty or returns by any bike shops or online shops. You will need to buy a new crank. Tarty bikes will have cranks in stock just send them an email, they may ask for pictures. Quote Link to comment Share on other sites More sharing options...
butterztrials123 Posted September 21, 2013 Author Report Share Posted September 21, 2013 (edited) i know i didn't do that i was very cautous putting the pedals on and if i had done that wouldn't the same thing happened to the other pedal? Edited September 21, 2013 by butterztrials123 Quote Link to comment Share on other sites More sharing options...
Blake Posted September 21, 2013 Report Share Posted September 21, 2013 either that or you rode the bike with the pedal loose. Just wait till tarty reply as opposed to putting your posts on here, they can get funny with warrenty stuff if you put it all over the forum Quote Link to comment Share on other sites More sharing options...
isitafox Posted September 21, 2013 Report Share Posted September 21, 2013 i know i didn't do that i was very cautous putting the pedals on and if i had done that wouldn't the same thing happened to the other pedal? Not really, you put one side on correctly and the other wasn't probably 100% straight when you started screwing it in Quote Link to comment Share on other sites More sharing options...
Lewis Gething Posted September 21, 2013 Report Share Posted September 21, 2013 I think it was user error in the sense of not making sure the pedals were tight throughout the duration of the ride. Im almost certain that Tartybikes' website gives warning that pedals should be checked for tightness every 30 mins or something like that, but I could be wrong. It does however, say this in the 'Additional Information' section of every full bike's page: "Please ensure all the details on the warranty sheet supplied with the bike are adhered to. Certain circumstances (such as stripped threads or rounded crank arm tapers) only occur due to a lack of correct maintenance and all manufacturers are aware of these situations, so any claims due to incorrect maintenance procedures are much less likely to be successful." Found here: http://www.tartybikes.co.uk/20_inch_trials_bikes/onza_pro_2013/c10p11661.html?tab=additional_information#box Quote Link to comment Share on other sites More sharing options...
butterztrials123 Posted September 21, 2013 Author Report Share Posted September 21, 2013 I not saying it wasn't my fault, but I don't think it was my fault and I think there is a possibility that I didn't tighten it fully Quote Link to comment Share on other sites More sharing options...
isitafox Posted September 21, 2013 Report Share Posted September 21, 2013 I not saying it wasn't my fault, but I don't think it was my fault Quote Link to comment Share on other sites More sharing options...
Mark W Posted September 21, 2013 Report Share Posted September 21, 2013 They got the little crank/pedal stickers printed (that would've been on your cranks when you got the bike) largely because this is what happens if you don't keep the pedals tight at first. They can come loose after you ride for a bit, and if they aren't nipped up again it eventually strips the threads. That's why it's also mentioned in the warranty sheet, and in the additional info bit. Quote Link to comment Share on other sites More sharing options...
pjl1984 Posted September 22, 2013 Report Share Posted September 22, 2013 If you dont mind me asking what pedals were they as when my bike arrived from tarty the right hand pedal had a left hand side spindel in it which if put into the crank arm would cause it to strip the threads. Quote Link to comment Share on other sites More sharing options...
butterztrials123 Posted September 22, 2013 Author Report Share Posted September 22, 2013 If you dont mind me asking what pedals were they as when my bike arrived from tarty the right hand pedal had a left hand side spindel in it which if put into the crank arm would cause it to strip the threads. The pedals are onza double cage Quote Link to comment Share on other sites More sharing options...
pjl1984 Posted September 22, 2013 Report Share Posted September 22, 2013 Might just be worth checkin the thread pattern mate its the threads should slant differnt on each pedal Quote Link to comment Share on other sites More sharing options...
butterztrials123 Posted September 22, 2013 Author Report Share Posted September 22, 2013 I'll do that so Quote Link to comment Share on other sites More sharing options...
dave33 Posted September 22, 2013 Report Share Posted September 22, 2013 Ok so the cause could have been that there is a shite burr on the pedal thread or that hasn't got a full form and depth of thread. But you may also have cross threaded it like every one will tell you. But the fact that you felt it wasn't screwing in so freely as the other is the problem. You shouldn't have forced it in. Did you use any grease ? It's really hard without seeing both parts and seri g how tight it was to tell. But you will have little to no chance of getting a replacement crank as that's always an easy way out. Its worth posting up some pictures of the parts and if the material came out on the pedal in a coil/spring like shape put a pic of that. When you do get a new crank and there may actually be a problem with the pedal thread be sure to take cause to avoid that happening again. Quote Link to comment Share on other sites More sharing options...
FamilyBiker Posted September 22, 2013 Report Share Posted September 22, 2013 time for a sert! Quote Link to comment Share on other sites More sharing options...
butterztrials123 Posted September 22, 2013 Author Report Share Posted September 22, 2013 Ok so the cause could have been that there is a shite burr on the pedal thread or that hasn't got a full form and depth of thread. But you may also have cross threaded it like every one will tell you. But the fact that you felt it wasn't screwing in so freely as the other is the problem. You shouldn't have forced it in. Did you use any grease ? It's really hard without seeing both parts and seri g how tight it was to tell. But you will have little to no chance of getting a replacement crank as that's always an easy way out. Its worth posting up some pictures of the parts and if the material came out on the pedal in a coil/spring like shape put a pic of that. When you do get a new crank and there may actually be a problem with the pedal thread be sure to take cause to avoid that happening again. I didn't "force it in" it just didn't go in as smoothly as the other one Quote Link to comment Share on other sites More sharing options...
dave33 Posted September 22, 2013 Report Share Posted September 22, 2013 I didn't "force it in" it just didn't go in as smoothly as the other one Screwed it in with your fingers or needed a spanner? Quote Link to comment Share on other sites More sharing options...
butterztrials123 Posted September 22, 2013 Author Report Share Posted September 22, 2013 Screwed it in with your fingers or needed a spanner? Screwed it in with fingers Quote Link to comment Share on other sites More sharing options...
dave33 Posted September 22, 2013 Report Share Posted September 22, 2013 You may have a case but I couldn't say unless I seen it myself. You didn't answer my other questions Quote Link to comment Share on other sites More sharing options...
butterztrials123 Posted September 22, 2013 Author Report Share Posted September 22, 2013 You didn't answer my other questions I didn't put any grease on Quote Link to comment Share on other sites More sharing options...
butterztrials123 Posted September 23, 2013 Author Report Share Posted September 23, 2013 (edited) Tarty bikes replied to my emailed and told me why it happened and said they will fix it for £10 If send it, I think it's a fair deal so I'll probably do that. It was because I should have tightened the pedal before I rode first time Edited September 23, 2013 by butterztrials123 Quote Link to comment Share on other sites More sharing options...
will ackerley Posted September 23, 2013 Report Share Posted September 23, 2013 That happened to my old one to I needed new cranks and pedals Quote Link to comment Share on other sites More sharing options...
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