The petrol tank doesn't give you much of a range between petrol stations. Back tyres don't last very long either. My right foot gets covered in oil courtesy of the raised oil level in the cam chest when the oil seal between the timing case and the magneto has a bad day. Difficult to silence with Mk1...

If I remember correctly the 'official' sizes were 24 teeth for solo work and 22 for sidecar. Mine had a 24 tooth sprocket when I got it in the late 60's and I fitted a 25 tooth sprocket when I rebuilt it about 20 years ago. Although now slightly over-geared and once again in need of workshop attenti...

Your application goes to Roger who will process it and once that's done Simon can confirm your membership and amend your Forum details accordingly. There may be several cups of tea involved . . . . . . once your membership card and Cheval turn up you'll find the contact details for the Square Four s...

To get the coveted red name you'll need to contact the Forum admin.

I'm pleased that things are now working as they should and that I was able to help.

I don't know about that particular oil but I believe that most 'car' oils contain friction-reducing additives which are bad news for a clutch. This is one reason given for using only the approved oils in modern motorcycle engines as the engine oil almost always lubricates the primary drive and gearb...

There is a copy of the Motor Cycle for October 25th 1928 road test of the Colt
available in the Members Only Document Repository in the cub's website.

It's technically a Black Ariel so you want the Black Ariel Spares Scheme.

If you can provide some dimensions I'll look in my box of NOS but unidentified valves.

Did Ariel provide replacement frames already numbered or were they left blank?

Years ago I had a new postwar rigid frame which I passed on to Draganfly when they were still in
London and as far as I remember this frame was not numbered but I'm not sure now.

The BSA yokes not only have the stanchions closer together than the Ariel half-sided yokes they also somewhat 'shorter' and won't fit into an Ariel frame. My understanding is that later, full-width Ariel forks have the same stanchion spacing as the BSA. This is speculation on my part as none of my A...