High level S(S) exhaust

[Quzzy]

Hi, to introduce myself, getting my stock 74 Interstate this week, second Norton since my ES2 in 1978, so a rookie question really. 65 and live in France though British.
I see high level "street scramblers" with high level exhausts, some both on one side, some one either side.
What models/year did this change.
I see the both same side set up is available for about 2K euros complete.
Is the separate side system also available?
Thanks

 

[L.A.B.]

The same side exhaust was fitted to the 750 'S' type in 1969-70.

https://www.classicbike.biz/Norton/Brochures/1970/70Norton.pdf

The exhaust fitted on each side was the 1971 750 'SS' model.

https://www.classicbike.biz/Norton/Brochures/1970/1971Commando.pdf

Is the separate side system also available?

Andover Norton Parts Drawings - Andover Norton Factory Parts - Commando Parts

Andover Norton Parts are the only Norton spare parts in the market manufactured to original drawings, within the factory-approved tolerances, from the correct materials, and with the correct finish.

andover-norton.co.uk

Note that the 'S' type had a 3.00 section front tyre and a closer-fitting mudguard to prevent the mudguard from hitting the exhaust under fork compression which is something you need to take into consideration if you were to fit an 'S' type exhaust to an 850, also 'S' would and I believe L/H 'SS' exhausts/silencer would have to be removed to gain access to the battery compartment as the 'S' type battery access is on the RH side. The fittings into the cylinder head are also different.

 

[Quzzy]

Thanks for your concise reply. I should have said mine is a crossover '74 750. Do you believe that would have front wheel interface problem with "S" type? Here is a photo of the bike, please excuse its state, Ive not got my grubby hands on it yet! https://i.postimg.cc/jddTcgTm/Commando.jpg

 

[kommando]

Do you believe that would have front wheel interface problem with "S" type?

Likely as the 74 has the larger front mudguard to allow the wider tyre to be fitted.

 

[L.A.B.]

I should have said mine is a crossover '74 750. Do you believe that would have front wheel interface problem with "S" type?

Yes, it will. That '74 looks like a '72.

 

[hpshooter]

Look closely at the pipe connection at the cylinder head. Someone has modified it to a bolted retainer ring as opposed to the normal nuts, or so it appears.