1972 Commando Tyres confusion

I've read in here that people are running 100/90-19 front and rear, and the other option is front 90/90-19, rear 100/90-19.

Both are valid, the 90/90 front will give quicker steering. I use Avon Roadriders and cannot praise them enough and I use the 90/90 on the front. Std rims will be WM2-19 front and rear.

Fender stays are the same for all versions except the Interpol with the valanced front guard.

Yes, Norton's parts list quotes WM2-19 rims for front and rear.

Early ones were shipped with 3.50 tyres, but by 1973 they were quoting 4.10 front and rear.

I also recommend AM26 Road Riders. Hugely better than any I previously tried. I have 100/90 front and rear.

As John Holmes points out, a smaller section front will give quicker steering. But if you want a full classic bike experience you should definitely try TT100s at least once ...

I tried TT100's, now I know tyre choice can be subjective but following white lines is not an experience I want to repeat.

Previously richard_chan wrote:

Thanks for the reply.

So mine would have been shipped with 3.50 tyres, as it is on there now.

It would have had 4.10 x 19 TT100's fitted front & rear when new. Equivalent to a normal 3.50 x 19.The Avons are much better in my opinion and I prefer the narrower front tyre.

I did say "once"

More seriously, the reason why I switched to Roadrunners was that I was wearing out the centres of the tyres much faster than their flanks; this was decades ago, and I haven't got any faster since.

Previously richard_chan wrote:

I have read the reviews on the TT100s, and the white line thing keeps popping up. I like authentic, but i don't like authenticllyâ dangerous!

I ride city and back roads, I originally prefer the Bridge stone BT45s, but they don't do it in a 19 rear. So from reviews, Avon Roadrider seems like a good option. It's ordered and new shoes should be on next week.

Then with a bit of luck, maybe the bike will pass TÃV without much work, then i can really start working on the bike.