walker Posted February 17, 2008 Report Share Posted February 17, 2008 (edited) Right ive just got a new headset and i'm having some troubles. Ive installed it correctly to the instructions and its not working properly.Basically, the crown race is not pulling up square to the bottom cup/bearing. It pulls up close at the front of the forks, but theres a 1mm gap at the back, so its not square.Its a Specialites TA sealed bearing headset. the crown race is like a split ring, i presume this slit is designed to close when you tighten it all up, but no matter how much i tighten the top cap, the corwn race wont pull up square. Any ideas on the problem? Im not a harsh rider, so i would be suprised if it's a bent steerer tube and ive checked and the headset cups are pushed in perfectly square.hmm? whats the problem?Andrew Edited February 18, 2008 by walker Quote Link to comment Share on other sites More sharing options...
georgieporgie Posted February 17, 2008 Report Share Posted February 17, 2008 Right ive just got a new headset and i'm having some troubles. Ive installed it correctly to the instructions and its not working properly.Basically, the crown race is not pulling up square to the bottom cup/bearing. It pulls up close at the front of the forks, but theres a 1mm gap at the back, so its not square.Its a Specialites TA sealed bearing headset. the crown race is like a split ring, i presume this slit is designed to close when you tighten it all up, but no matter how much i tighten the top cap, the corwn race wont pull up square. Any ideas on the problem? Im not a harsh rider, so i would be suprised if it's a bent steerer tube and ive checked and the headset cups are pushed in perfectly square.hmm? whats the problem?Andrewif it's the same (dont hold me to this)i just had to hit the the bit that go's onto the forks pretty hard not sure if this is what you mean.....but it's what ive done to all my headsets Quote Link to comment Share on other sites More sharing options...
Conor the basher. Posted February 17, 2008 Report Share Posted February 17, 2008 Hmm i had a similer problem So all i did was file the bottom of the forks down a little ...... Quote Link to comment Share on other sites More sharing options...
walker Posted February 17, 2008 Author Report Share Posted February 17, 2008 hmmm, ok, ill bear that in mind, but i think the crown race is sat correctly on the forks, i'll have another look tomorrow... Quote Link to comment Share on other sites More sharing options...
*Tom* Posted February 17, 2008 Report Share Posted February 17, 2008 Head tube might need facing?. Quote Link to comment Share on other sites More sharing options...
craigjames Posted February 17, 2008 Report Share Posted February 17, 2008 you be surprised at how bad a lot of fork crowns are. double check everything else and then get the fork crown faced. Quote Link to comment Share on other sites More sharing options...
walker Posted February 18, 2008 Author Report Share Posted February 18, 2008 here are some pics to help:Had another look at it, and its still puzzling me. In the first pic you can see the gap between the crown race and the bottom cup on the left hand side (bike is upside down). This is the same for the top cup, but to a much lesser extent.Andrew Quote Link to comment Share on other sites More sharing options...
huge Posted February 18, 2008 Report Share Posted February 18, 2008 (edited) Are they echo/zoo etc. forks? I had a similar problem although not as extreme with some urbans where the area for the base of the headset was nowhere near flat. Maybe contact who you brought them from, or see if you can spy the high spots on the fork and carefully file them level. Edited February 18, 2008 by huge Quote Link to comment Share on other sites More sharing options...
psycholist Posted February 18, 2008 Report Share Posted February 18, 2008 I'd say the lower bearing cone isn't fitted fully. A good bike shop will have a tool to ream the bearing seat on the forks flat. If it's already flat check if your steerer tube is straight. Don't ride the bike like that anyway, it'll ruin the headset in no time. Quote Link to comment Share on other sites More sharing options...
TrAsHeR Posted February 18, 2008 Report Share Posted February 18, 2008 Make sure you are using the metal washer on the bottom of the streering tube and the plastic one at the top. Quote Link to comment Share on other sites More sharing options...
Greetings Posted February 18, 2008 Report Share Posted February 18, 2008 Had an identical problem with Ashton forks just a bit more extreme, turned out the steerer was bent. Quote Link to comment Share on other sites More sharing options...
Curly-Sam Posted February 18, 2008 Report Share Posted February 18, 2008 did it have some coprestion rings ?thats what mine needed Quote Link to comment Share on other sites More sharing options...
*Tom* Posted February 18, 2008 Report Share Posted February 18, 2008 Like Inur said, looks like the steerers bent, take the fork out and find a straight edge, like the edge of a ruler, put the steerer up against it and see if its bent, if not its probably something needs facing. Quote Link to comment Share on other sites More sharing options...
walker Posted February 18, 2008 Author Report Share Posted February 18, 2008 Make sure you are using the metal washer on the bottom of the streering tube and the plastic one at the top.Sorry i dont quite get what you mean, theres not plastic washers in this set.did it have some coprestion rings ?thats what mine neededWhat are they?Like Inur said, looks like the steerers bent, take the fork out and find a straight edge, like the edge of a ruler, put the steerer up against it and see if its bent, if not its probably something needs facing.Ok done the test, if its bent, its only by a tiny tiny amount, so its not that.On closer inspection of the headset it would appear that the bottom bearing is not seating on the crown race correctly, as there is a score mark on the anodised crown race that the bearing has been turning on (obvously not correct! 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.