jsy trials matt Posted July 18, 2008 Report Share Posted July 18, 2008 hi, i bought a neon bb a little white ago ( square ) and noticed that when my cranks are fully on there is quite a big gap between the frame and the crank, so i left it be and got on. Today changing a puncture a mate of mine noticed there was a big chunk out of my frame where it has rubbed, so put the bike all back together and could see it was defo the chain that had done the damage. So later i checked on my mate mat's bike ( who got a neon bb a few week's afater me ) his has done the same but not to the same degree as i ride my bike a lot further than him. Im am using a bionic b2 and mat's using a 08 GU. we're not sure what to do but we think some weld put in it would do the trick, has anyone else had this problem, and do you think it's our bb help us please thanks guy's Quote Link to comment Share on other sites More sharing options...
J Trials 31 Posted July 18, 2008 Report Share Posted July 18, 2008 Don't buy untested Chinese crap! Quote Link to comment Share on other sites More sharing options...
will4eva7k Posted July 19, 2008 Report Share Posted July 19, 2008 (edited) Im using a Neon ISIS BB and it's working lovely.I wouldnt say the BB's are crap.. not the ISIS ones anyway.I think the problem you have is either:- that your BB spindle is too wide, or wider than your old one. So you chainline is further out and will have the chain eating into your seat stays.- you're not running a 18-12/13 setup Edited July 19, 2008 by will4eva7k Quote Link to comment Share on other sites More sharing options...
El Cristoff Posted July 19, 2008 Report Share Posted July 19, 2008 I had one of the neon carbon squares, it was lovely, really smooth. What frame are you running? Quote Link to comment Share on other sites More sharing options...
will4eva7k Posted July 19, 2008 Report Share Posted July 19, 2008 The topic starter is riding a bionic b2 modme, myself - echo pure 1060, soon to be a 26" Neon in a few weeks Quote Link to comment Share on other sites More sharing options...
mountian goat Posted July 19, 2008 Report Share Posted July 19, 2008 (edited) me, myself - echo pure 1060, soon to be a 26" Neon in a few weeksoooooooovery nice choice!blue or gold? Edited July 19, 2008 by t-rex boy Quote Link to comment Share on other sites More sharing options...
will4eva7k Posted July 19, 2008 Report Share Posted July 19, 2008 oooooooovery nice choice!blue or gold?Maybe blue or white, or neither of themI dont know what colour's it'll be available in.Oh, its a Neon 2nd gen stock frame, looks pretty cool and the geometry sounds mint Quote Link to comment Share on other sites More sharing options...
PaRtZ Posted July 19, 2008 Report Share Posted July 19, 2008 Hmm sounds like its spindle length (well, doubt its anything else to be honest) Have you tried a different BB or used a different bb in that frame before? If not it could be something else, and infact any other square BB could do the same.As suggested, check your ratio set up: should be 18:12. Check your chain tension? maybe its too slack? If you put pressure on the pedals, does the chain clear the chain stay? If so, you could do with tightening the chain by pulling the wheel back the tensioners.Also, chainstay protectors might help Quote Link to comment Share on other sites More sharing options...
jsy trials matt Posted July 20, 2008 Author Report Share Posted July 20, 2008 Im using a Neon ISIS BB and it's working lovely.I wouldnt say the BB's are crap.. not the ISIS ones anyway.I think the problem you have is either:- that your BB spindle is too wide, or wider than your old one. So you chainline is further out and will have the chain eating into your seat stays.- you're not running a 18-12/13 setupwell the neon square bb's are 128mm over the usual 127.5, could that really be the difference? Quote Link to comment Share on other sites More sharing options...
will4eva7k Posted July 20, 2008 Report Share Posted July 20, 2008 well the neon square bb's are 128mm over the usual 127.5, could that really be the difference?my previous BB, an Echo one was 128mm too. half a millimetre is almost unoticeable, or too little Quote Link to comment Share on other sites More sharing options...
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