Akront mudcatchers rims.

[Momus]

Does anyone know when Akront, or similar ridged aluminium rims first appeared on Spanish bikes- road or off road?

[pokey]

Borrani have been making them since adam was a boy and Moto Guzzi ave been using them. Not Spanish but close.  The cover of Cycle – August 1951.

[Hoony]

bloody hell, did you have that Mag Pokey ?

[Momus]

bloody hell, did you have that Mag Pokey ?

Classic. Good one.  Thanks Pokey.

Someone needs to come up with a meat slicer quip for the dude in the photo.

So that makes aluminium rims legal for Pre1960 CMX

The ridged style aluminium rims  are on a lot of early Bultacos- well before 1965, my recent probing reveals.

[geoff]

Norton used the flanged alloy rims on the "Works" bikes during the 1930s. They painted them black to try and kid the opposition!

[Momus]

Interesting.

Black paint is great stuff for subterfuge.

Norton were early adopters of magnesium for bike castingss as well and as I was told by an old engineer the first to a proper 100 hp per litre (50 hp 500)output with their later Manx.

[pokey]

bloody hell, did you have that Mag Pokey ?

Naa Hoony, i wish I did but Im just another Guzzi tragic, The only ones to get the vee the right way round
I have a stack of useless info in my head and a folder of just as useless stuff on the poota.
I cant recall the name but there was an english rim maker who was also around in the 40s or 50s who did  alloys but the good teams all had Borani.