The SP-1 was already hard to fault but the firm has used what it’s learnt from a year of racing it in WSB to make the SP-2 faster and more powerful.
The handling – already near perfect on the SP-1 – has also been improved.
Our official photographs of the bike show there will be little to indicate the changes on the surface, other than the new black, silver and white colour scheme and the " SP-2 " stickers, but tweaks have been made under the skin to the chassis, engine and suspension.
Changes to the fuel injection system have resulted in a fractional boost in peak power by around 3-4bhp. It means the SP-2 will make around 137bhp at the crank, compared to the SP-1’s claimed 134bhp.
The SP-1 has been criticised for less than perfect throttle response at low revs, but the modifications to the fuel injection system should help to address this.
Peak torque has been increased, from 77.4ftlb to around 80ftlb. Torque at low revs has also been increased, at the expense of a small reduction in mid-range torque.
Though these changes are marginal, together with improved handling they should help racers shave tenths of seconds of lap times – and give you a bike which is even closer to a WSB-spec machine on the road.
A new subframe and minor modifications to the frame have saved weight, while the swingarm has been replaced with a stiffer item.
Other modifications include a new, taller bubble screen for better aerodynamics on the track and new indicators. The futuristic digital clocks of the SP-1 have been kept, but now light up green instead of orange.
The bike is expected to go on sale around Christmas, with a list price close to the SP-1’s £10,000.