Thanks to Triumph Motorcycles Ltd for sending us the CAD drawings shown on this page.
As we have remarked elsewhere, the 1050 Speed Triple engine that we will be using in Enigma 1050 was laid down before the arrival of stacked gearboxes. It’s a bit long, therefore, and it is also quite heavy, but the power characteristics are superb.
The drawing above shows the standard twin silencers. We will be using a single made to order item from Austin Racing in carbon fibre mated to the original headers.
The 1050 crankshaft is phased at 120 degrees. Pistons operate under a compression ratio of 12:1. Primary drive is by gear.
A gear driven shaft with a pair of eccentric lobes takes care of the out of balance forces generated by the crankshaft.
Camshafts operate four valves per cylinder. Drive is by conventional chain from the lefthand side of the crank.