Basketcase
Senior member
40mm offset marzos were used on the Ducati 900 GTS and have similar handlebar mounts.
They used a top taper bearing so the top adjuster nut is not sleeved, just a thin slotted nut for use with a C spanner. Cheaper than the earlier Ceriani triples as used on the Ducati.
Some Marzo lower triples have 25mm stem and some 26mm. Make sure you buy a matched set of triples with adjuster nuts etc.
By the way, if using a dust cover washer on your setup, put the thin hardened washer next to the bearing, it is designed to press on the inner race and is smaller diameter than the outer race so it does not bind. The dust cover washer is just an umbrella that runs clear of the headstock.
Coincidentally, I found my SF2 was missing the dust cover yesterday. The cover from an Ariel Square Four headstock fits just fine on a Ceriani sleeve nut and is now on my Lav. Saved me a long delay ordering one.
Rob
They used a top taper bearing so the top adjuster nut is not sleeved, just a thin slotted nut for use with a C spanner. Cheaper than the earlier Ceriani triples as used on the Ducati.
Some Marzo lower triples have 25mm stem and some 26mm. Make sure you buy a matched set of triples with adjuster nuts etc.
By the way, if using a dust cover washer on your setup, put the thin hardened washer next to the bearing, it is designed to press on the inner race and is smaller diameter than the outer race so it does not bind. The dust cover washer is just an umbrella that runs clear of the headstock.
Coincidentally, I found my SF2 was missing the dust cover yesterday. The cover from an Ariel Square Four headstock fits just fine on a Ceriani sleeve nut and is now on my Lav. Saved me a long delay ordering one.
Rob