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Want to lower seat height on Commando #524629
01/25/14 9:59 am
01/25/14 9:59 am
Joined: Aug 2001
Posts: 333
Texas Gulf Coast
Curmudgeon Offline OP
BritBike Forum member
Curmudgeon  Offline OP
BritBike Forum member
Joined: Aug 2001
Posts: 333
Texas Gulf Coast
My short legs don't allow me to sit flat footed on my Commando. I installed a Corbin Gunfighter seat and it helps but not enough. Thinking maybe shorter shocks might do the trick. Any advice? Thanks.


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Re: Want to lower seat height on Commando [Re: Curmudgeon] #524668
01/25/14 1:52 pm
01/25/14 1:52 pm
Joined: Sep 2008
Posts: 103
Mercer Island, WA / Austin, TX
Rick in Seattle Offline
BritBike Forum member
Rick in Seattle  Offline
BritBike Forum member
Joined: Sep 2008
Posts: 103
Mercer Island, WA / Austin, TX
Installing 12" shocks will lower the seat 0.75". It also increases the rake by 0.75 degrees, which will slightly increase your highway stability at a cost of slightly reduced side-to-side handling; it's a small effect. Buy boots with a heavy sole, 1.5". I used all three (seat, shocks, and boots) on my Mk3 rebuild and can now comfortably ground both feet at a stop. I also changed the rear wheel to an 18" WM3, but I installed a beefier rear tire that restored the original rolling diameter, so no help help here in lowering the seat; I didn't want to mess with the Commando handling by mis-matching the tire diameters.


Rick in Seattle
1970 BSA 441 Victor Special
1972 Norton Commando 750 Combat
1975 Norton 850 Commando Mk3
1960 Triumph TR3A
Re: Want to lower seat height on Commando [Re: Curmudgeon] #524670
01/25/14 2:00 pm
01/25/14 2:00 pm
Joined: Sep 2009
Posts: 629
SEATTLE WA
S
SEATTLE GS Online content
BritBike Forum member
SEATTLE GS  Online Content
BritBike Forum member
S
Joined: Sep 2009
Posts: 629
SEATTLE WA
One problem is the seat itself...The front of it is very wide and holds your legs apart. It doesn't take much to make your feet go out wider and wider. Look at other seats like the BSA A65 or A10 to see how they come to a point. The Norton Atlas seat is very wide too. Now how to modify the seat is tough. Maybe cheaper than new shocks, boots and rear wheels?

Re: Want to lower seat height on Commando [Re: SEATTLE GS] #524712
01/25/14 6:24 pm
01/25/14 6:24 pm
Joined: Aug 2001
Posts: 333
Texas Gulf Coast
Curmudgeon Offline OP
BritBike Forum member
Curmudgeon  Offline OP
BritBike Forum member
Joined: Aug 2001
Posts: 333
Texas Gulf Coast
I'm happy with the Gunfighter seat, looks great feels better than stock. I will try shorter shocks next. Hate to mess with the wheels because I believe changing the height or the with of the rear tire will affect handling. I'll just have to put up with changing the rear tire every 4,000 miles!
The elevator boots trick sounds good too. Thanks.
I wonder if anyone has tried going with 18' wheels front and rear?


reliccycles.com
Re: Want to lower seat height on Commando [Re: Curmudgeon] #524714
01/25/14 6:36 pm
01/25/14 6:36 pm
Joined: Mar 2006
Posts: 3,488
Norfolk, UK
L.A.B. Online content
BritBike Forum member
L.A.B.  Online Content
BritBike Forum member
Joined: Mar 2006
Posts: 3,488
Norfolk, UK

Re: Want to lower seat height on Commando [Re: Curmudgeon] #524870
01/26/14 12:17 pm
01/26/14 12:17 pm
Joined: Sep 2008
Posts: 103
Mercer Island, WA / Austin, TX
Rick in Seattle Offline
BritBike Forum member
Rick in Seattle  Offline
BritBike Forum member
Joined: Sep 2008
Posts: 103
Mercer Island, WA / Austin, TX
Just a short addendum on the Corbin seat. When I ordered the Gunfighter, I explained to the rep what I was doing, and he recommended shaving 0.5" off of the sides. There was no charge for this modification, and the modified seat has resulted in 4 years of comfortable and anxiety-free riding. All-in-all, my Corbin experience was pretty positive.


Rick in Seattle
1970 BSA 441 Victor Special
1972 Norton Commando 750 Combat
1975 Norton 850 Commando Mk3
1960 Triumph TR3A
Re: Want to lower seat height on Commando [Re: Curmudgeon] #525306
01/29/14 6:48 am
01/29/14 6:48 am
Joined: May 2006
Posts: 571
New York
B
bmwr90s Offline
BritBike Forum member
bmwr90s  Offline
BritBike Forum member
B
Joined: May 2006
Posts: 571
New York
I have the same issues with my Commando so I made my own seat.












I have since removed the vinyl cover to have the seat professionally covered. I haven't mastered that part of the process yet.

Art


1969 XLH
1973 Norton Commando
1991 FLHTC W/SIDECAR
Re: Want to lower seat height on Commando [Re: Curmudgeon] #525358
01/29/14 2:03 pm
01/29/14 2:03 pm
Joined: Aug 2001
Posts: 333
Texas Gulf Coast
Curmudgeon Offline OP
BritBike Forum member
Curmudgeon  Offline OP
BritBike Forum member
Joined: Aug 2001
Posts: 333
Texas Gulf Coast
WOW! Truly a work of art!
I did something like that about 30 years ago so I could use a Roadster gas tank with a Fastback tailsection. It was a LOT of work but it turned out great. Don't ever want to do that again.


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