Kieran@ZSClothing Posted October 2, 2007 Report Share Posted October 2, 2007 Hey guys, got meself some of these pro-bolts put first in frame no problems, second one half may in and the head snapped off, took the bolt bit out with pliers. put another one in thinking maybe it was a dodgy bolt and this one snapped off in the frame. So I had to drill my mount and tap it to m6. So im an unhappy chap lolI used copper greese on the bolts after finding the first one tight. and I don't understand why they snaped so easily and if they are so weak why make them.Thanks Adam Quote Link to comment Share on other sites More sharing options...
streetjibs Posted October 2, 2007 Report Share Posted October 2, 2007 have used those bolts and had no problems. For the head to snap off there has to be some resistance somewhere. You said it was only half way in... so there should be no resistance, the only thing i can think of is that maybe it wasnt in perfectly straight??? other than that it should go in smooth, no resistance til its all the way in.i definately wouldnt blame the bolts though.... good luck with gettin it sorted. Quote Link to comment Share on other sites More sharing options...
scousertrials Posted October 2, 2007 Report Share Posted October 2, 2007 The was a post last week about the same bolts not fitting. Maybe related to your issues. Quote Link to comment Share on other sites More sharing options...
liam-pantera Posted October 3, 2007 Report Share Posted October 3, 2007 if they were gold they could have been mistaken for monty ti bolts witch are realy brittle but also i have heard of pro bolts snapping before. Quote Link to comment Share on other sites More sharing options...
AdamR28 Posted October 3, 2007 Report Share Posted October 3, 2007 have used those bolts and had no problems. For the head to snap off there has to be some resistance somewhereAs Danny says, for the bolt to snap putting in in there must have been some resistance somewhere... perhaps the bolt bottomed out in your frame, or it wasn't put in straight?If you wish to send the bolts back to us we can send them back to Pro-Bolt for inspection, just give us a call Quote Link to comment Share on other sites More sharing options...
basher Posted October 3, 2007 Report Share Posted October 3, 2007 Like people are saying sounds like not a fault of the bolts but yours. There alloy bolts so that is going to happen if you over tighten them. Did you grease them up and did they go in smoothly or did you have to use some muscle as more than likely if its the latter then that will be why it snaped. Quote Link to comment Share on other sites More sharing options...
Ashley Smith Posted October 3, 2007 Report Share Posted October 3, 2007 aluminium bolts are rubbish, i wouldnt waste my time with them, ash Quote Link to comment Share on other sites More sharing options...
walker Posted October 3, 2007 Report Share Posted October 3, 2007 aluminium bolts are rubbish, i wouldnt waste my time with them, ashSeconded! Quote Link to comment Share on other sites More sharing options...
AdamR28 Posted October 3, 2007 Report Share Posted October 3, 2007 aluminium bolts are great, i have loads all over my bike and have never had a problem with them, Quote Link to comment Share on other sites More sharing options...
basher Posted October 3, 2007 Report Share Posted October 3, 2007 i ride like a big girl and am a big weight weenie so ali bolts are fine for me Quote Link to comment Share on other sites More sharing options...
JaMmY Posted October 3, 2007 Report Share Posted October 3, 2007 do what adam fron tarty said send them back! Quote Link to comment Share on other sites More sharing options...
poopipe Posted October 3, 2007 Report Share Posted October 3, 2007 Seconded!thirded - I have manly forearms Quote Link to comment Share on other sites More sharing options...
T.McMillan Posted October 3, 2007 Report Share Posted October 3, 2007 aluminium bolts are rubbish, i wouldnt waste my time with them, ashi agree, but they do look pimp on the other hand Quote Link to comment Share on other sites More sharing options...
Christophe' Posted October 3, 2007 Report Share Posted October 3, 2007 thirded - I have manly forearmsfourthded?? Realy wouldnt use aluminium bolts for anything important, especialy rear brake!! Quote Link to comment Share on other sites More sharing options...
Dave Anscombe Posted October 3, 2007 Report Share Posted October 3, 2007 i am not a fan of pro blots the heads round of easily...... Quote Link to comment Share on other sites More sharing options...
Kieran@ZSClothing Posted October 3, 2007 Author Report Share Posted October 3, 2007 (edited) Well they went in smooth and perfect for the first like 4 threads and then went a bit stiff but this was the same with all the bolts i have used on this frame, im not to fused as my brake works and i still have bolts and im not worried about 6.50 so..... but i thought i would put up a topic just to find out if its a problem with the alloy bolts being weak or what. I had no problems with the ones i put in my brake levers or the one for the top cap.Adam Edited October 3, 2007 by The-Bear Quote Link to comment Share on other sites More sharing options...
moto_psycho Posted October 3, 2007 Report Share Posted October 3, 2007 ally is so soft that the slightest different in thread can cause the bolt to change shape/shear a little bit, undoing it snags on this and PING!why why why use ally bolts? why do frames have horrible ally threads?n e who, if ur gonna use them, put a little dab of copper grease on the thread 1st Quote Link to comment Share on other sites More sharing options...
fyfey Posted October 3, 2007 Report Share Posted October 3, 2007 ally is so soft that the slightest different in thread can cause the bolt to change shape/shear a little bit, undoing it snags on this and PING!why why why use ally bolts? why do frames have horrible ally threads?n e who, if ur gonna use them, put a little dab of copper grease on the thread 1stAnd don't try tapping helicoils! Quote Link to comment Share on other sites More sharing options...
JKH Posted October 4, 2007 Report Share Posted October 4, 2007 I've had king funbolts and other aluminum bolts snap before. Be careful if they don't go in smooth, because they are pretty brittle. You could try chasing the threads in your frame with a m5 tap next time before you install the bolts. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.