thirsty2 Posted January 2, 2006 Report Share Posted January 2, 2006 Hi! I have had to pairs of truvattive isis cranks now. Both of which i have somehow managed to rip all of the threads out of the crank arm where the peddle is screwed into. I haven't done it by cross threading the thread when i put them in, they just do it when im riding.I get realy enoyed because they are not cheap cranks. Dhat do you guys suggest?Do i need better and stronger cranks?Your help is welcome!! So please reply shortly.Thankyou!! Quote Link to comment Share on other sites More sharing options...
bikerdude2006fr Posted January 2, 2006 Report Share Posted January 2, 2006 Are they Trials, Dh, Xc cranks? If they are Xc cranks its more than likely they wouldnt be built strong enough to take the beatings of trials. So i would check that mate If you want to fix the crank/s then get yourself a helicoil, im sure someone else can explain one better than me Cheers Jay Quote Link to comment Share on other sites More sharing options...
thirsty2 Posted January 2, 2006 Author Report Share Posted January 2, 2006 (edited) Are they Trials, Dh, Xc cranks? If they are Xc cranks its more than likely they wouldnt be built strong enough to take the beatings of trials. So i would check that mate If you want to fix the crank/s then get yourself a helicoil, im sure someone else can explain one better than me Cheers Jaycheers By the way they are husslefelts! Edited January 2, 2006 by farehamtrialsmassive05 Quote Link to comment Share on other sites More sharing options...
PaRtZ Posted January 2, 2006 Report Share Posted January 2, 2006 If you're getting new cranks I suggest the new tensiles for two reasonsThey have removable pedal insertsThey have been redesigned not to bite your anklesIf you want to keep your old cranks, then you do need to helicoil them and I to can not be bothered explaining Quote Link to comment Share on other sites More sharing options...
bikerdude2006fr Posted January 2, 2006 Report Share Posted January 2, 2006 Are you sure you didn't cross thread? Because i didnt think i had before, and that they stripped just from riding, but my dad told me that they will realy only strip if they are cross threaded ect. so when you get new ones, the husslefelt trials should be fine, then when you screw in the pedals use nice copper grease and slowly screw them in with your fingers all the way and just give it a bit more tightness at the end with a spanner You could look into a better pair or cranks though, something like the new echos or middleburns or something along those lines Cheers Jay Quote Link to comment Share on other sites More sharing options...
TheMunn Posted January 2, 2006 Report Share Posted January 2, 2006 You must also check that the pedals are tight in there, if you have a re-occuring problem you might want to try some loctite ? Quote Link to comment Share on other sites More sharing options...
Trials_joe Posted January 2, 2006 Report Share Posted January 2, 2006 Loctite would be the best thing for it! Or buy new cranks that are built for trials The Old Echo Ones are going cheap, its just the matter of find out where Quote Link to comment Share on other sites More sharing options...
wilky_mod_legend2 Posted January 2, 2006 Report Share Posted January 2, 2006 If you're getting new cranks I suggest the new tensiles for two reasonsThey have removable pedal insertsThey have been redesigned not to bite your anklesIf you want to keep your old cranks, then you do need to helicoil them and I to can not be bothered explaining i would agree with what he said^^^ either tensiles or middle burns, but tensiles are sexual, and very pratical, due to the removable pedal insertshope it helped wilky Quote Link to comment Share on other sites More sharing options...
basher Posted January 2, 2006 Report Share Posted January 2, 2006 the same has happened to me aand i didn't cross thread them either i was running the old echo ones. what ive decided to do is put my pedal in striaght and weld it in place and keep riding them until the pedals fall to bits or i have the money to get tensiles. Quote Link to comment Share on other sites More sharing options...
Street Lee Posted January 2, 2006 Report Share Posted January 2, 2006 You cant weld ally to steel mate...Helicoiling is the way forward until you can afford new cranks, they're just like a spring that is wound into the stripped hole with a tool (all this omes in a kit) and the spring then acts as a thread. Primo cranks were a f**ker for stripping before they made them with the steel inserts, only downer is that they're a shit design and the insert comes loose and spins when they get a bit older Quote Link to comment Share on other sites More sharing options...
Dan6061 Posted January 2, 2006 Report Share Posted January 2, 2006 One of my mates is selling some Middleburns with red bash and 22t (I think)# Mint condition really, hardly used. But they're SQ Taper, but a new BB is about £15 As said before, you could have cross threaded the arms, they would still screw on though. I guess the pedal axle thread would have cut a new thread into the arms? Due to being stronger metal? Like I said, only a guess. Maybe thy weren't tight enough at the start, came loose, but you still rode with it, and fecked the threads. Happened to my mate, so he got Tensiles Could get some of the new (not the cnc ones) Echo Cranks in 170mm with ISIS Taper? I've got the Sq taper 160mm on my Mod, feel nice, and quite a few people use them Helicoiling is another option, I think you just drill out the old thread, and helicoil it with the kit you get. The theads will be much stronger too, and should last a good while. But if you have the money for it, just get some new cranks, have a change. As said before, Tensiles or 'burns are your best bet. Look about for some selling 2nd hand if you have to Quote Link to comment Share on other sites More sharing options...
Onza Kieron Posted January 2, 2006 Report Share Posted January 2, 2006 Buy some Middleburns or Tensile's and your Troubles will be over, don't Truvativs not have replaceable pedal inserts though, you could always just but some of those. Quote Link to comment Share on other sites More sharing options...
YAJIB Posted January 2, 2006 Report Share Posted January 2, 2006 :Di recomend that u check that nothing is bent like the cranks or pedal axles because i did tthe same thing to my old cranks because my pedal was bent and when i put my weight on the pedals and rode around it started to rip the threads out the cranks it worth a look Quote Link to comment Share on other sites More sharing options...
thirsty2 Posted January 2, 2006 Author Report Share Posted January 2, 2006 One of my mates is selling some Middleburns with red bash and 22t (I think)# Mint condition really, hardly used. But they're SQ Taper, but a new BB is about £15 As said before, you could have cross threaded the arms, they would still screw on though. I guess the pedal axle thread would have cut a new thread into the arms? Due to being stronger metal? Like I said, only a guess. Maybe thy weren't tight enough at the start, came loose, but you still rode with it, and fecked the threads. Happened to my mate, so he got Tensiles Could get some of the new (not the cnc ones) Echo Cranks in 170mm with ISIS Taper? I've got the Sq taper 160mm on my Mod, feel nice, and quite a few people use them Helicoiling is another option, I think you just drill out the old thread, and helicoil it with the kit you get. The theads will be much stronger too, and should last a good while. But if you have the money for it, just get some new cranks, have a change. As said before, Tensiles or 'burns are your best bet. Look about for some selling 2nd hand if you have to Thanks mate that was great help!Just one more question though.Will any helicoil fit or do I have to get speicial ones? Quote Link to comment Share on other sites More sharing options...
t-mag_rider Posted January 2, 2006 Report Share Posted January 2, 2006 You will need to get the right size fot the pedal, I "think" that a maggie mount(in the frame) is M6 or M5 but I'm not sure about the size for a pedal, you better ask someone else about that, but if you are getting the kit from a garrage ect. Then they should be able to tell you what size you need. If you take the cranks.Hope I help.Ollie. Quote Link to comment Share on other sites More sharing options...
Dan6061 Posted January 2, 2006 Report Share Posted January 2, 2006 You will need to get the right size fot the pedal, I "think" that a maggie mount(in the frame) is M6 or M5 but I'm not sure about the size for a pedal, you better ask someone else about that, but if you are getting the kit from a garrage ect. Then they should be able to tell you what size you need. If you take the cranks.Hope I help.Ollie. 4 bolt mounts on frames are M4 V mounts are M5 Quote Link to comment Share on other sites More sharing options...
t-mag_rider Posted January 2, 2006 Report Share Posted January 2, 2006 (edited) 4 bolt mounts on frames are M4 V mounts are M5But don't you have to get them tapped out to M5 to get the helicoil in?Thats what i ment! Edited January 2, 2006 by t-mag_rider Quote Link to comment Share on other sites More sharing options...
Rob rides trials Posted January 3, 2006 Report Share Posted January 3, 2006 it happend to me once but they wernt my cranks so i was a bit shocked when i did it to someone elses lol but i paid for the damage Quote Link to comment Share on other sites More sharing options...
Tom Booth Posted January 3, 2006 Report Share Posted January 3, 2006 Isnt it husslefelts with the rmovale pedal insert???Might be mistakenTom Quote Link to comment Share on other sites More sharing options...
el curevo Posted January 3, 2006 Report Share Posted January 3, 2006 Isnt it husslefelts with the rmovale pedal insert???Might be mistakenTom They have a pedal insert but it isnt removeable. This happened to mine so i did the easy thing and brought some new cranks! Which crank did you bugger up dude, i may have a spare one lieing around somewhere. Quote Link to comment Share on other sites More sharing options...
thirsty2 Posted January 6, 2006 Author Report Share Posted January 6, 2006 They have a pedal insert but it isnt removeable. This happened to mine so i did the easy thing and brought some new cranks! Which crank did you bugger up dude, i may have a spare one lieing around somewhere.It was the husslefelts but i did it to both some how.i don't know how but...once id did it to one of them i put a spare one that was lying around in my room on so that i could ride. Quote Link to comment Share on other sites More sharing options...
koxx1 Posted January 7, 2006 Report Share Posted January 7, 2006 get tensiles Quote Link to comment Share on other sites More sharing options...
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