How to shorten fork legs

Information on forks/springers/shocks
Post Reply
mcraeav
Posts: 92
Joined: Mon Jul 06, 2009 6:05 pm
Bikes: 1962 Panhead
Location: Austin, TX

How to shorten fork legs

#1

Post by mcraeav » Wed Aug 19, 2009 7:42 pm

I want to shorten the front fork legs on my 62 FL by about an inch. Anyone know how I could do that?



Hauula Pan
Posts: 402
Joined: Sun Dec 21, 2008 2:15 am
Bikes: 1952 FL
Location: California
Has thanked: 4 times
Been thanked: 30 times

Re: How to shorten fork legs

#2

Post by Hauula Pan » Wed Aug 19, 2009 8:28 pm

If you want to retain full travel and dampening action the right way to do it is to purchase 1" under size tubes. People have tried cutting the springs which will to some extent provide a lower stance but all you're really doing is making the stock length tube sit lower inside the lower leg and you limit the amount of travel, you weaken the spring, and you will also usually get some slamming. Under size tubes are available and don't cost all that much and are the right way to go.

mcraeav
Posts: 92
Joined: Mon Jul 06, 2009 6:05 pm
Bikes: 1962 Panhead
Location: Austin, TX

Re: How to shorten fork legs

#3

Post by mcraeav » Wed Aug 19, 2009 9:31 pm

Will I have to put in shorter springs if I put in shorter tubes?

Bosheff
Posts: 1234
Joined: Fri Jul 03, 2009 8:23 pm
Bikes: 65 FLH 82 FLH
Location: Michigan
Been thanked: 41 times

Re: How to shorten fork legs

#4

Post by Bosheff » Wed Aug 19, 2009 11:35 pm

If you want it to properly dampen, yes.

mcraeav
Posts: 92
Joined: Mon Jul 06, 2009 6:05 pm
Bikes: 1962 Panhead
Location: Austin, TX

Re: How to shorten fork legs

#5

Post by mcraeav » Thu Aug 20, 2009 12:36 am

Where can I get the shorter tubes and springs from?

Panacea
Posts: 1865
Joined: Fri May 24, 2002 1:00 am
Bikes: 64FL 99FLHR 01FXSTD
Location: Mpls. MN.
Has thanked: 14 times
Been thanked: 57 times

Re: How to shorten fork legs

#6

Post by Panacea » Thu Aug 20, 2009 1:07 am

Call Forks By Frank if you have any related questions, Frank has passed away but his wife still runs the shop. ..Mike

mbskeam
Posts: 1006
Joined: Tue Mar 16, 2004 5:52 am
Location: Sultan, WASH
Been thanked: 2 times
Contact:

Re: How to shorten fork legs

#7

Post by mbskeam » Thu Aug 20, 2009 1:37 am

the way We shortened mine, was to cut off the 6"over from the bottom and re machine the snap ring groove into the end

took 15 min. with a good lathe guy.....

RussW
Posts: 170
Joined: Sun Apr 08, 2007 3:49 am
Bikes: 1961 FL
2007 Kaw. Vulcan 2000
Location: Western Mass
Been thanked: 4 times

Re: How to shorten fork legs

#8

Post by RussW » Thu Aug 20, 2009 2:04 am

I think Frank's has a fork tube/spring cutting service as well. At least they used to.

Panacea
Posts: 1865
Joined: Fri May 24, 2002 1:00 am
Bikes: 64FL 99FLHR 01FXSTD
Location: Mpls. MN.
Has thanked: 14 times
Been thanked: 57 times

Re: How to shorten fork legs

#9

Post by Panacea » Thu Aug 20, 2009 4:27 am

mb,There may be a step at the end of the tube to keep the valve at the end with .004 max end play under the retainer ring, I tossed the old tubes or I could take a look...Mike

mcraeav
Posts: 92
Joined: Mon Jul 06, 2009 6:05 pm
Bikes: 1962 Panhead
Location: Austin, TX

Re: How to shorten fork legs

#10

Post by mcraeav » Thu Aug 20, 2009 10:25 pm

Sounds like I should just give Forks by Frank a call and get the shorter tubes and springs.

Panacea
Posts: 1865
Joined: Fri May 24, 2002 1:00 am
Bikes: 64FL 99FLHR 01FXSTD
Location: Mpls. MN.
Has thanked: 14 times
Been thanked: 57 times

Re: How to shorten fork legs

#11

Post by Panacea » Fri Aug 21, 2009 3:25 am

The tubes aren't expensive, Just wondering, why do you want to lower the front? The handleing may be affected somewhat. Mike

mcraeav
Posts: 92
Joined: Mon Jul 06, 2009 6:05 pm
Bikes: 1962 Panhead
Location: Austin, TX

Re: How to shorten fork legs

#12

Post by mcraeav » Fri Aug 21, 2009 4:01 pm

Mike,
I put on a pair of 12" shocks and like to lower look; just look like it needs to be a little lower in the front now to even it out.

RUBONE
Moderator
Posts: 5100
Joined: Sat Nov 15, 2008 4:09 am
Bikes: Multiple H-D, Ducati, BMW, Triumph, BSA,...
Has thanked: 13 times
Been thanked: 499 times

Re: How to shorten fork legs

#13

Post by RUBONE » Fri Aug 21, 2009 8:04 pm

I take it you don't turn any corners :lol: Or you have a stack of spare footboards :P
Robbie

Post Reply

Return to “Forks/Shocks”