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What year front end / brake set up is this?

Discussion in 'The Garage' started by Norton7d, Jul 13, 2019.

  1. Norton7d

    Norton7d XS650 Addict

    Just bought a 71 with a dis brake, it was my opinion disc didn't occur until 72?
    It has a 73 inspection sticker, so I assume its either. 72 or 73 front end? 20190713_175726.jpg 20190713_185753.jpg 20190713_190337.jpg
     
    Last edited: Jul 15, 2019
  2. mrtwowheel

    mrtwowheel Honda Etched On Brain Top Contributor

    I see what you mean by the inspection sticker. That front axle must have been too long, they used a big nut for a spacer.
     
  3. Mailman

    Mailman Hardly a Guru Top Contributor

    It sure Looks like my XS2 front end.
    407045F1-7390-4FFD-A451-697ACA422340.jpeg
     
    gggGary and Gator xs2 like this.
  4. willis

    willis XS650 Junkie Top Contributor XS650.com Supporter

    Master cylinder looks like possibly a ‘75???? Not sure what other years it was used on. Where is the brake light switch on it?
     
  5. TwoManyXS1Bs

    TwoManyXS1Bs BBQ Hunter Top Contributor

    Kinda secretive pics there.
    I see an XS1 throttle, and a gold fork ear.
    Bottom bracket (triple tree) shows 2 mount holes for hyd brake splitter.

    I smell mix/match...
     
    Mailman, Gator xs2 and MaxPete like this.
  6. MaxPete

    MaxPete Life with Lucille...I suggest, she decides. Top Contributor XS650.com Supporter

    On the early disc systems the brake light switch is a pressure switch down on the manifold on the lower triple. It’s not on the lever as on later bikes.
     
    arcticXS likes this.
  7. GLJ

    GLJ If you can't laugh at youself you shouldn't laugh Top Contributor

    Definitely a 72. Big nut and square washer are on the shaft that the rotor rides on. Rotor looks to be a 72. Master cylinder may be aftermarket should not have threaded hole for mirror. The break light switch was on the bottom side of the master cylinder on a OEM MC.
    upload_2019-7-14_7-59-37.png
     
    MaxPete, arcticXS, Mailman and 2 others like this.
  8. GLJ

    GLJ If you can't laugh at youself you shouldn't laugh Top Contributor

    A 72 would have a kill switch on the throttle.
    2M is right. Looks like someone put a 72 front end on a 71.
     
  9. gggGary

    gggGary Stop that! Top Contributor XS650.com Supporter

    That 72 front brake is a one year only deal. You will no doubt get the chance to find out why. It's not awful, just needlessly complex. Hint; watch out for the rubber bumpers. There's a seldom applied service bulletin for that!
     

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