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Thread: Bent Fork Brace ('71 R75/5)

  1. #1

    Bent Fork Brace ('71 R75/5)

    Putting the front end back together and am having with the fork brace. The fork tubes are installed and torqued at the lower clamp. Top nuts are hand tight. I can put the axle in and it spins freely. I've read that the axle is suppose to move freely.
    The fork brace had to be bent together using a pipe clamp as the holes did not match up with the studs. They do now and the brace goes on with out force. I can torque the two nuts on right (facing the front of the bike) and the axle still spins freely and moves back and forth. I can tighten the nuts on the left by hand and still get movement from the axle. Once I start to torque the left side, it seizes up any movement on the axle. The issue follows the same side of the brace if I install it upside down. I noticed a wedge of space on the left (shown in pic) side and saw that once that starts closing up, the axle seizes. I made some shims and tried to fill the space so the but it doesnt help.

    Am now looking for assistance on this issue. -Adam

    fork brace gap.jpg

  2. #2
    Registered User
    Join Date
    Jan 2017
    Location
    Grandville Mi
    Posts
    20
    I had the same issue (gap only) when I restored my r60/5. Knowing that my my fork tubes were set right I simply made a shim from a feeler gauge, horse shoe shape so I could slide it in. Removed my springs and retightened top nuts, with fork brace tight and axle installed there was no binding.

  3. #3
    Registered User cwroady's Avatar
    Join Date
    Dec 2013
    Location
    OC, SoCal
    Posts
    60
    I have had to resort to shims before in order to maintain a freely turning axle in various fork positions on a 60/5 I had.
    Chris - 2015 BMW RT / 1973 BMW R75/5 / 1955 BMW R50 - Yard Art - 1968 Hodaka / 1968 Sachs
    President SCBMWRC https://scbmwrc.com/ https://www.facebook.com/groups/scbmwrc/
    MOA / Airhead Beemer Club

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