Saddle seat

Information relating to the Matchless G9 or AJS Model 20 500cc twin
Member
Posts: 135
Joined: Mon Jan 14, 2019 5:37 pm
Location: Aberdeenshire

Saddle seat

Postby Oggers » Thu May 28, 2020 4:40 pm

Another hare set running for you all to chase. I prefer saddles - a single sprung - seat on old bikes rather than the dual seat. The 46 Ariel VB looks mighty fine with its Lycette, and on the 55 G9 I feel the aesthetics and the slight "bobber" look is quite pleasing. It looks like early model 20s had a single seat/saddle, and they look quite nice. As I have Jampots, I guess I'll have to limit the springing somewhat for fear of being bounced off!

Thoughts very welcome, how to retrofit?, frame parts required etc......

Member
User avatar
Posts: 1575
Joined: Thu Jul 10, 2003 12:00 am
Location: HAMPSHIRE UK

Re: Saddle seat

Postby Duncan » Thu May 28, 2020 6:34 pm

Hi Mark, there should be several threads covering this in the forum history, have you tried searching?

Member
Posts: 135
Joined: Mon Jan 14, 2019 5:37 pm
Location: Aberdeenshire

Re: Saddle seat

Postby Oggers » Fri May 29, 2020 8:43 am

Fisrt thing I did - there are indeed threads and info for other bikes, not much for 55 G9s - which as far as I can see have no lugs for a saddle.

Member
User avatar
Posts: 1575
Joined: Thu Jul 10, 2003 12:00 am
Location: HAMPSHIRE UK

Re: Saddle seat

Postby Duncan » Fri May 29, 2020 11:16 am

As you note those designed to accept a saddle have a tube fixing for a bolt to hold the spring welded to the frame, there was a period clamp/bracket that could be added to the frame on each side (this was a quiz picture many years ago) for those that did not have the tube, if you line it all up it shouldn't be too hard to either fabricate a clamp or weld a couple of vertical fixing tubes to the frame, the short pillion pad type springs should give you just enough movement with this setup. A clamp that straddles both frame tubes may be a more robust fixing than individual clamps by being less likely to rotate.

Member
Posts: 135
Joined: Mon Jan 14, 2019 5:37 pm
Location: Aberdeenshire

Re: Saddle seat

Postby Oggers » Fri May 29, 2020 1:13 pm

Yes - thinking of something like a clamp with some appendix to fix the bolt for the springs. What happens at the front? Does it just rest on the frame?

Member
User avatar
Posts: 2356
Joined: Mon Jan 01, 1990 12:00 am
Location: LANCASHIRE UK

Re: Saddle seat

Postby dave16mct » Fri May 29, 2020 2:43 pm

At the front, the original saddle hinged on a boss in the frame. At least you have a cutaway at the back of the tank where it will fit.
Dave.

Member
Posts: 839
Joined: Tue May 27, 2008 1:19 pm
Location: SURREY UK

Re: Saddle seat

Postby Stan Palmer » Fri May 29, 2020 6:01 pm

The trials models continued with a saddle. Different frame and tank but might be worth having a look how they did it.
Stan

Member
Posts: 3278
Joined: Sun Jan 01, 1995 12:00 am
Location: ESSEX UK

Re: Saddle seat

Postby G15 Roy » Fri May 29, 2020 7:41 pm

I think the last year the front boss was on the frame was 1953-4 certainly not 1955.
Roy

Return to G9 / AJS Model 20

Who is online

Users browsing this forum: No registered users and 7 guests