imperial tyre sizes

[Johnwebley]

I fit a 4.00 wide rear because 3.50 is not available,

 it increases the gearing,cured by a 1 tooth smaller gearbox sprocket,

and by running at 33psi,instead of 36 reccommended) it handles like a gem,it also increases ride height,
but handles really good,

[JamesH]

John, if you're running a 750 K bike ('69-76) then 4.00 *18 rear is the factory specification tyre....

[Johnwebley]

John, if you're running a 750 K bike ('69-76) then 4.00 *18 rear is the factory specification tyre....

  James,It's a 'umble 500,hence the 3.50 as standard,

but thanks for the info

[JamesH]

John, if you're running a 750 K bike ('69-76) then 4.00 *18 rear is the factory specification tyre....

  James,It's a 'umble 500,hence the 3.50 as standard,

but thanks for the info

Ahh got ya. Nothing humble about the 500/4 - awesome machines imho...

[petersy]

Hi Graeme I've just fitted Dunlop TT100's to my 750 and my Kettle , got my tyres from www.vintage-tyres.co.uk front is 4.10x19 rear is 4.25/85x18,

cheers Mick.

 

Back in the 1970s, the first thing we did after buying a brand new CB500 four was to change the tyres for TT100s - they made a world of difference.

[LesterPiglet]

What happened to all the tyres you removed?