T 140 engine in GS 1000 frame?

[John Kat]

Has anyone tried to fit a Triumph 750 twin cylinder engine in a GS 1000 frame?
The idea might seem crazy but it's far easier to find a GS frame than a Norton featherbed frame.
I always wanted to build myself a Triton but in this case it could be a Trisuz or is it a Suztri?
The bike could be really light and most probably a lot of fun
A long time ago I raced a 750 Atlas engine in a Manx frame and this idea would return many good memories ( when I forget how difficult it was to start the engine!)

 

[Guest]

Would that be a Suzumph or a Triuki. Kinda like the sound of Triuki better. Why not a Trident motor in a 1985 GS750 frame?

Or you could stick a modern FZ-09 triple in a Bonneville frame with USD forks and you will end up with an ultra cool sounding Tramaha sleeper.

 

[trippivot]

WE have a T140 in a early GSXR frame at redline motorcycle. My boss is a triumph flat track guy and he also has a KZ frame mocked up for a freakins machine .

I always oversimplify things but start by lining up the sprockets and the motor plate dimensions are a snap. plenty of room for everything.

It is buried under a small platform we store spare parts on so a photograph is out of the question -- until I get him to break it out.

we have track master frames and T140 things and 50's sidehack triumphs
Very interesting xs650 bikes , and SR500s'

 

[GregT]

John, my personal feeling is that the GS frame is heavier than you'd like for something with triumph power. There are better options around.

If you want to keep the traditional featherbed lines of a triton,the BMW /5 frames are around in large numbers. i put a Kohler V twin in one for a local guy a couple of years back. Putting a chain drive swingarm in was easy but the rear crossmenbers have to be moved for clearance.

As trip has mentioned there are alloy full loop frames which will suit too. If i was keen i'd look for an early GSXR400 frame - smaller than the first series 750 but very robust.

 

[John Kat]

Thanks for the info guys.
I can get an early GSXR 750 frame easily and on our local craiglist I found a couple of R5/R6 frames for less than 200$.
The trackmaster frames are out of question given the price...
One can buy a replica Manx frame for that price! http://www.manx.co.uk/products/products.htm
I like the GSXR idea as I'm used to working with Suzuki's universal parts but I will miss the Norton Manx look.
Need to think it over...
I found another source for a Featherbed frame at only (?) 865?: http://www.andover-norton.co.uk/SI Frames.htm

 

[slayer61]

The folks at J&M ( http://www.jandmracingproducts.com/frames.htm ) made the frame for my flattrack racer, and it's a thing of beauty. Mike can do amazing things with metal.

 

[850 Combat]

I thought my Atlas handled reasonably well at the time.

 

[John Kat]

I thought my Atlas handled reasonably well at the time.

I fully agree, it was much better than the Commando with it's "isolastic" frame
I'll try to scan some pictures of my different Nortons from the Atlas 750 to the Commando 750 and finally the Manx with the 750 Atlas engine.
Why on earth did I sell my Manx after crashing it ( and myself)

 

[John Kat]

Some pictures of my Nortons...

Some pictures of my Nortons...

Here are the Nortons I owned some years back.
Nostalgia made me forget the bad times to remember the good ones
In order of possession, the 750 Atlas, the Gus Kuhn Commando and the Manx with a 750 Atlas engine.

 

[trippivot]

nice pictures, thanks for sharing them -