[Darren69]

I notice that the reg/rec in the above link appears to be for the 3 wire alternator. so whilst it may not be compatable it may work with the 2 wire bikes.

I dunno if it's just me but there just seems to be more disadvantages than advantages with using a Lithium Ion battery with a bike designed for lead acid batteries. Those disadvantages also seem to carry a rather high risk too. Too much for me I'm afraid.