Alton electric starter - belt drive primary

Hi all - I have a 920 Mk2A Interstate fitted with a RGM 32mm Belt Drive Primary. I have just received the bike back from the Motorcycle Restoration Company (located in Saffron Walden, UK) following them fitting the Alton system to it.

I'm impressed !! - the engine spins over as if there are no sparking plugs in it - starting is instantaneous. A few notes:-

The Alton system for chain primaries has been around for some time but the belt-drive system has been delayed and as far as I know my bike is the first (at least in the UK) to be fitted with a belt-drive system fitted. The chaps at the Motorcycle Restoration Company had to make a number of modifications to the the prototype system sent to them by Alton and as such the system is specific to the RGM 32mm belt-drive system and thus system-specific parts may be required for other belt-drive systems (Norvil etc.) - I'm unsure as to who will be responsible for specification/production of these parts - I would assume Alton but who knows ?

The battery fitted is a Varta YTX20L of 20 AH capacity - this is more than up to the job (it may be a bit 'over the top') - it is a very tight fit in a Mk2A Interstate. The Alton 150w alternator has plenty of power to keep the battery topped-up.

The chaps atthe Motorcycle Restoration Company are very helpful and knowledgeable - they have a good Website.

HtH

Mark Woodward