Fork replacement Gran Sport

jezinio
jezinio Posts: 21
edited June 2012 in Workshop
Hi

I am trying to make my early 80s Raleigh Gran Sport presentable again. Most of it is in reasonable condition apart from the chrome forks. These are beyond cleaning and I would like to replace them. Any idea where I can get a similar set. Mine are flat crown but later models came with a sloping crown I believe. Either would do.

Comments

  • ugo.santalucia
    ugo.santalucia Posts: 28,301
    Get it resprayed or rechromed, probably cheaper than getting a new one. Looking at 150-200 pounds for a new chromed fork from the likes of bob jackson
    left the forum March 2023
  • jezinio
    jezinio Posts: 21
    Hi thanks - any recommendations on a re-chrome?
  • ugo.santalucia
    ugo.santalucia Posts: 28,301
    Try Argos cycles in Bristol. It won't be cheap but it will be a great job
    left the forum March 2023
  • rolf_f
    rolf_f Posts: 16,015
    Have you tried metal polish or T cut on them? You can go a hell of a long way with those.

    And the aforemention Bob Jackson will rechrome your existing fork if you want - always better than replacing original parts.
    Faster than a tent.......
  • jezinio
    jezinio Posts: 21
    This may seem completely elementary to anyone semi-competent in bike mechanics, but, how do I get this old fork off??
  • rolf_f
    rolf_f Posts: 16,015
    jezinio wrote:
    This may seem completely elementary to anyone semi-competent in bike mechanics, but, how do I get this old fork off??

    In very elementary terms - undo the bolt at the top of the stem and remove the handlebars. Then, unscrew everything that unscrews at the top of the head tube and pull out anything that pulls out; this will include the bearings which maybe caged or loose (this matters less than if this discussion was about tigers). You may wish to photograph everything you undo as you go along as sometimes its not immediately obvious how it goes back together.

    At this point, you should be able to separate the fork from the frame bearing in mind more caged or loose bearings will appear in the vicinity of the steerer tube above the top of the fork crown.
    Faster than a tent.......
  • ugo.santalucia
    ugo.santalucia Posts: 28,301
    Rolf F wrote:
    jezinio wrote:
    This may seem completely elementary to anyone semi-competent in bike mechanics, but, how do I get this old fork off??

    In very elementary terms - undo the bolt at the top of the stem and remove the handlebars. Then, unscrew everything that unscrews at the top of the head tube and pull out anything that pulls out; this will include the bearings which maybe caged or loose (this matters less than if this discussion was about tigers). You may wish to photograph everything you undo as you go along as sometimes its not immediately obvious how it goes back together.

    At this point, you should be able to separate the fork from the frame bearing in mind more caged or loose bearings will appear in the vicinity of the steerer tube above the top of the fork crown.

    +1

    ... and the final step is removing the crown race from the fork.... you can leave it to the guy who will chrome the fork or you can DIY. In the latter case and in the absence of the proper tool, gently tap a large flat screwdriver with a mallet all around the perimeter of the crown... it should eventually come off
    left the forum March 2023
  • jezinio
    jezinio Posts: 21
    Many thanks - a real big help. Very good tip about the photos. If I get mauled by those vicious bearings I will be back!