Triumph Rat Motorcycle Forums banner
  • Hey everyone! Enter your ride HERE to be a part of September's Bike of the Month Challenge!
1 - 15 of 15 Posts

·
Registered
Joined
·
316 Posts
Discussion Starter · #1 ·
I'm on to my winter modification craze and wanted to see if anyone knew where a seat such as the one found on many of the Thruxton Cup bikes could be purchased. Picture below is what I'm talking about:



I'd prefer to make one to save my self some money but the part where I get stuck on what to do is how to make the back hump/cowl. I would make a new seat bottom and bolt the stock Thruxton cowl to it but the stock one is too wide for the shape I'd want. Please let me know if anyone has any ideas.

I still plan on keeping the stock seat in tact so I can use it on longer trips where the foam on a Thruxton Cup style seat might not be too comfortable.

[ This message was edited by: OldSkoolFool on 2007-01-15 17:23 ]
 

·
Registered
Joined
·
1,524 Posts
After taking a close look.
I'd say go to Home depot and buy a sheet of 3/4" ply wood
cut it to shape, them spray it black.
when you would have the same effect.
Bill
 

·
Registered
Joined
·
316 Posts
Discussion Starter · #3 ·
I was thinking the same thing or using plexiglass but again the problem would be how to make the hump/cowl part of the seat :hammer:
 

·
Registered
Joined
·
4,915 Posts
Bend some sheetmetal over your frame to make a seat pan.

then look around for a pleasing cowl shape.Here`s a CB450 gastank.

and here is the back of an old TV set.

Look around,cowls are everywhere. :-D
 

·
Registered
Joined
·
1,279 Posts
I will assume that you don't know how to worj with fiberglass or you wouldn't have asked. Uf you don't jnow what you are doing, the chances of getting a finished product that looks good are almost zero. Save yourself the grief and vuy one.

You can try here
hot wing glass
or here
AirTech

[ This message was edited by: MES on 2007-01-15 17:59 ]
 

·
Registered
Joined
·
316 Posts
Discussion Starter · #7 ·
Thanks for the replies. I presonally don't know how to fiberglass but my father does so he could help me with that. I'm assuming some thicker fiberglassing would be necessary due to the weight and stress that's going to be on the seat. Haha Rodburner those are some creative methods, might be what I end up doing.
 

·
Premium Member
Joined
·
11,832 Posts
Like rodburner suggested, an old gas tank works really well for cafe tail sections, but Rodburner is a little more skilled with the welding torch than the average RAT...

Tanks can be bought really cheap on Ebay or try the Jockeyjournal.com classifieds. I just bought a sportster tank for 20 bucks shipped.
 

·
Registered
Joined
·
2,693 Posts
How about some high density foam cut to shape, glued to the seat pan then upholstered over?
or
surfboard type foam which is very easy to shape, then a bit of fibreglass over the top add resin and hardener sand smooth and upholster.

john

[ This message was edited by: ozbon on 2007-01-16 06:29 ]
 

·
Registered
Joined
·
1,592 Posts
I sit so close to the tank, I barely use the real estate Triumph gave me on the stock seat. I'll probably take another Thruxton pan and use the stock cowl as a mold for a glass cowl. Need to change the footprint a bit while I think about storage for tools, maybe move to a gel battery, or a place to store my weed.

I'll do the airbox, but haven't decided whether to vacate the area, or mod the airbox for storage.
 

·
Registered
Joined
·
42 Posts
I made a cowl for my old Honda CB. Used an old seat pan, glued strofoam to the rear 1/3 and shaped it with a file and sander. After getting the desired shape i covered it with fibergalss and resin, then finished it with galzing compound and a lot of elbow grease. When I was done poured some acetone in the foam and it eats it up leaving a cavity I plan on using for the elctronics. Takes a lot of patience and if you have never worked with fibergalss before go easy on the hardener so you have time to work with it. The whole process is pretty forgiving.
 

·
Registered
Joined
·
1,592 Posts
Hey Lanont, did you get any pics of the project? I'd like to see. Thats my plan, except I'm going with the plywood base unless I come across a seat pan soon.
 
1 - 15 of 15 Posts
Top