 Other modifications were Laverda 750 SFC swinging-arm with disc-brake mounting and shorter Girling suspension units, smaller alternator with smaller battery both repositioned behind the cylinder block and a secondary 'emergency' fuel tank in the original battery position.Laverda provided crank parts and camshafts.All work was carried out by Mike and Chris Tomkinson at Mike's home workshop, to avoid disruption to their core retail business.