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Re: 57 Square four/ swing arm or not?

Posted: Sat Dec 31, 2022 7:54 am
by nevhunter
The easiest way to achieve this swing arm and handling thing would be to use a late 50's pre unit thunderbrd frame and adapt it to take the Sq4 engine /gearbox or better a commando type box 5 speed version to cut down the cruise revs. Those Triumph frames aren't bad at all. Nev

Re: 57 Square four/ swing arm or not?

Posted: Sat Dec 31, 2022 9:35 am
by allan.walker
Thanks Paul.
I'll try to contact Peter in the new year.

Re: 57 Square four/ swing arm or not?

Posted: Tue Jan 03, 2023 6:03 pm
by Vincent.vanGinneke
Do it.
I only once rode my dad's plunger framed '57 MkII and found it going round corners like a square (pun intended) block of wood.
How come only Norton's deserve the name 'Gardengate' ! :lol:
Swingarm SQ4 German article  (1) - kopie.jpg
Swingarm SQ4 German article  (2) - kopie.jpg
Swingarm SQ4 German article  (3) - kopie.jpg
Swingarm SQ4 German article  (4) - kopie.jpg
Swingarm SQ4 German article  (5) - kopie.jpg
Swingarm SQ4 German article  (6) - kopie.jpg

Re: 57 Square four/ swing arm or not?

Posted: Tue Jan 03, 2023 6:16 pm
by JohnnyBeckett
HI Nortons have got a lot better made frames, that is why so many bikers use them to build their bikes