Front disc upgrade

Andy Higham · 2026-02-14T06:17:31-0700

I have found a reasonably easy doner disc for a front conversion.
Suzuki VZ1600 Marauder. 320mm diameter, 61mm bore, 13mm offset and 5 hole fixing.
I can make a centering ring to suit the Norton hub and then pop the rotor on the dividing head to drill the mounting holes, half way between the existing ones.
I bought a cheap Chinese rotor to play with, if it works well I can buy a higher quality rotor

concours · 2026-02-14T07:40:52-0700

Andy Higham said:
I have found a reasonably easy doner disc for a front conversion.
Suzuki VZ1600 Marauder. 320mm diameter, 61mm bore, 13mm offset and 5 hole fixing.
I can make a centering ring to suit the Norton hub and then pop the rotor on the dividing head to drill the mounting holes, half way between the existing ones.
I bought a cheap Chinese rotor to play with, if it works well I can buy a higher quality rotor

Are you going to fit two discs? For symmetry?

Andy Higham · 2026-02-14T07:44:41-0700

I would love to but that is a mahoosive job

B+Bogus · 2026-02-14T08:44:33-0700

concours said:
Are you going to fit two discs? For symmetry?

I like a bit of symmetry.
Symmetry and weight.

Fast Eddie · 2026-02-14T08:46:46-0700

Symmetry. With less weight…

Andy Higham · 2026-02-14T09:02:27-0700

Asymmetry with even less weight.
100g of thick cut smoked bacon please?

20260214_155633 by Sigma Projects, on Flickr

MexicoMike · 2026-02-14T09:08:53-0700

What are you converting FROM?

Andy Higham · 2026-02-14T10:21:58-0700

Standard Norton iron non floater and calliper to 320mm floater with Yamaha 4 pot calliper (gold spot)

Dedubyah · 2026-02-14T12:31:02-0700

I am going to convert to RGM's 12" disc. I have considered Don Penders conversion but don't like the look of a disc that large, haven't decided on whether to keep the std caliper or go to a 4 pot Brembo

Front disc upgrade

Andy Higham

concours

Andy Higham

B+Bogus

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Fast Eddie

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