Open Discussion Group

MP replacement rear forks

Viewing 7 posts - 1 through 7 (of 7 total)
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  • #7679
    Dale Barber
    Participant

    Hello.
    I have a cracked rear fork on my 1964 moulton standard. Moulton preservation have forks available from £65 according to the page on this site. As I see that communication channels seem to be only available via post, I thought I would try and save a couple of stamps asking what’s available, and see if anyone on here is in a position to advise?

    (Apologies, I’m a new member and don’t know what’s what!) Thanks

    #7680
    david james
    Participant

    i bought some steering bushes back in jan and the lady running it now is happy to discuss using texts.i would send a letter with your mob number and you should get some answers by text, or a good old fashioned sae

    #7681
    Dale Barber
    Participant

    Thanks David.

    I can’t remember the last time I sent a physical letter that wasn’t a birthday card, but I shall tend to my correspondence!

    #7685

    I think braze is just added to every joint to beef them up (please correct me if I’m wrong).

    There are more involved ways to strengthen them, principally by adding triangular gussets between the crescent cup and the underside of the blades, which is where the stress riser is. Early forks without the box section can also have a web added to reduce twisting, although series 1 forks will always twist to some extent. My series 1 forks were strengthened this way by a well-known framebuilder.

    #7698
    Dale Barber
    Participant

    In the end I sent my old fork to Gary Hill at Moulton preservation, who in my opinion did a good job. He had removed some historical dreadful tig(?) weld material rebrazed all the joints and straightened up some bending/damage to the forks – some of which caused by myself removing a stubborn pivot.
    Roger – you are correct that it didn’t involve any additional strengthening/ reinforcement steel being added.
    That would probably be the wisest thing if you are regularly going to ride the bike over distance and terrain. In my case I am just doing a light touch restoration of a family heirloom in very bad condition, that won’t see much riding. I have bought a tsr for that purpose.

    #7699

    Yes, MP say none of their rebrazed forks have subsequently failed but I suspect few of the bikes are intensively ridden.

    I cracked what appeared to be an excellent brazed (not welded) rear fork from a BoA built frame in only 100 miles on local lanes. Ok, I’m 2.5 stones heavier than a 1960s man, but not actually large! I’d sanded the paint off and gone over it with a fine toothcimb before it was painted,but it still broke. It is an exceptionally weak design.

    #7969
    Phil Hawkey
    Participant

    Hello Roger, I would also like to get my series one rear fork strengthened like this. Can you tell me the name of the frame builder who did it for you?

Viewing 7 posts - 1 through 7 (of 7 total)
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