• Welcome to the website of the Vincent H.R.D. Owners Club.

    Should you have any questions relating to the Vincent H.R.D. Owners Club, or Vincent H.R.D. motorcycles in general, please contact Graham Smith, Online Forum Webmaster by calling 07977 001 025 or please CLICK HERE.

    You are unrecognised, and therefore, only have VERY restricted access to the many features of this website.

    If you have previously registered to use this forum, you should log in now. CLICK HERE.

    If you have never registered to use this website before, please CLICK HERE.

Front Forks


Well Known and Active Website User
Non-VOC Member
This Yahoo group site contains several files of interest to Vincent types.
For example, graphs of trail and axle movement.
Go to
then join the group 'frontforks'
then click on 'Files'.
It is dead easy [and free] to join and to leave any Yahoo group.
You can avoid showing your email address, which is worthwhile for security reasons.

Although graphs of front wheel axle movements and fork trail have been made available in the past, this web site attempts to be more complete.
It includes Vincent Twins of Series A, B, C and D.
It includes solo and sidecar use [except for Series A - solo only] and also the special short top link for Girdraulic forks, developed by Bruce Main-Smith for sidecar use.
For comparison purposes, a solo Velocette KTT VIII is included.

Latest Forum Threads

Can't Find What You Need?

Buyer Beware: Fake or Real?