A new 126bhp three-cylinder 675cc short-stroke engine only makes 2bhp more than before, but it revs harder and is ripe for tuning – Triumph has built this bike to go racing first and foremost. It has a new cylinder block, pistons, gudgeon pins, crankcase oil baffles, titanium inlet valves and gearbox. There are new twin-injector throttle bodies, ECU and a bigger central air intake running through the headstock. A new slipper clutch has a two-way ramp for extra slip and grip on and off the throttle and lighter clutch springs. The exhaust is repositioned up and under the engine to aid weight distribution. The motor is less breathless than before in the midrange and high revs, but still has buckets of torque. It flies off corners and crucifies straights. This motor was already one of the best in the business and now it’s even better.