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Is my ti frame bust

  • 15-05-2014 9:18pm
    #1
    fago
    Registered Users, Registered Users 2 Posts: 318 ✭✭


    Racing tonight had to pull up after a surge and a pothole, my rear wheel was rubbing on the non driveside. Looking at it tonight the wheel doesn't seem to be sitting true.

    I borrowed a wheel previously and noticed it rubbed a little aswell.

    See pics. Is the rear triangle bent? Is it possible to bend back. Can't see any cracks or obvious movement.

    Frame is lynskey ti from planet x.


Comments

  • #2
    fago
    Registered Users, Registered Users 2 Posts: 318 ✭✭fago


    A view of how it looks with the wheel seated properly.


  • #3
    cdaly_
    Registered Users, Registered Users 2 Posts: 6,440 ✭✭✭cdaly_


    Take the wheel out of the frame, reverse it and mount it with the cassette on the non-drive side. Check the clearance again. If the sits the same way, the frame is out of true, if the wheel sits the other way, its dish is off.


  • #4
    Al Wright
    Registered Users, Registered Users 2 Posts: 168 ✭✭Al Wright


    Its difficult to say on the basis of pictures. Check if there is any signs of damage on the droupouts (also check welds, bottom bracket and seat stays for cracks).
    I had a similar problem, but with a steel frame, in this case the dropouts were fitted with screws to locate the wheel QR axel so that the rim/tyre was central, one of the adjusting screws bent.

    I don't much about how a Ti frame reacts to cold setting, If it is fitted with steel dropouts, I would be inclined to file a couple of 'thou' from the dropout on the opposite side to that on which the wheel rubs.
    (Caution: I happen to have mechanical background, so have someone knowledgeable inspect the frame first before acting)


  • #5
    Joff
    Registered Users, Registered Users 2 Posts: 161 ✭✭Joff


    Hope it's your wheel and not the frame,

    Let us know what you find.


  • #6
    Eamonnator
    Registered Users, Registered Users 2 Posts: 6,561 ✭✭✭Eamonnator


    And for the time being, step away from that file.


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  • #7
    fago
    Registered Users, Registered Users 2 Posts: 318 ✭✭fago


    Thanks for the advice, will take a proper look at lunchtime at the frame and check the wheel in someone else's bike.

    The wheels are dura ace c24 which are apparently dished a little more on on the driveside to cater for 11 speed.
    I also use 25c tyres so the clearance is tighter compared to 23c.


  • #8
    fago
    Registered Users, Registered Users 2 Posts: 318 ✭✭fago


    Checked with other wheels and reversed the wheel, seems like the dura ace c24 wheel has dished which is disappointing.

    No visible cracks, and the flex on both sides of triangle feels about the same


  • #9
    cdaly_
    Registered Users, Registered Users 2 Posts: 6,440 ✭✭✭cdaly_


    It might be worth re-dishing the wheel. Or run 23mm tyres.


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