• Welcome to the forum 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 forum website.

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

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

FF3 Dimensions


Well Known and Active Forum Website User
Non-VOC Member
Hi to all, I found this on Thevincent.com some time ago, but I can't find the actual dimensions on my computer or on Thevincent.com.
Can any one help me please?



chankly bore

Well Known and Active Forum Website User
Non-VOC Member
I had to "reclaim" a lower link for the "Comet on Steroids". I proceeded to measure the width across FF2 plus 2x FF8 and x 2xFF9 and added .010" for wiggle room. I then measured the width across the rear eyes of FF3 and allowed 1/8" for each FF5 bush (for memory). I then contrived a piece of finely threaded bolt stock so as to be able to exert force ONLY on the inner face of each chosen eye. I then applied main force until a straight edge was parallel and equidistant to the front faces of the FF3, i.e. where the FF6 bushes go. I then reamed both sets of fitted bushes parallel with a piloted reamer. I hope someone has the dimensions for you, but this is what you have to check with unknown parts. "SEEMS, MADAM, Nay, IT IS!"

Bill Thomas

Well Known and Active Forum Website User
VOC Member
Hello Kevin, Can't find anything in the books and works sheets, This is what I have with my Comet, Which is together, + a set I have to rebuild, A=9/16" B= 1.1/4" C= 4.7/16" D= 4.15/16" No Bushes ! 5.3/16" With Bushes and thrust cups. E= 5,1/2", My spare set shows 5.17/32 but they are not square !! So I can't give you F !!, Pardon Me !!. Just had a read of works sheets, They say you can ride the bike with-out the front damper fitted!! But they don't recommend it !! That made me Sweat. I had a lower link bushed a long time ago, By one of our top men, When it came back it was all over the place !!. So as Chankly says it will have to be squared up. Good Luck, Bill.
Warning! This thread is more than 9yrs ago old.
It's likely that no further discussion is required, in which case we recommend starting a new thread. If however you feel your response is required you can still do so.