RRP: £ 7,949.00

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Description

Cylinder & Piston

The lightweight aluminium cylinder is an engineering masterpiece featuring a 95 mm bore and a lightweight Konig bridge-box-type piston. Coupled with the lightweight piston is a new, lighter piston pin. This combination produces very little oscillating mass significantly reducing vibration and increasing rider comfort. The compression ratio is 11.8:1

Crankshaft

The new crankshaft is 100g lighter but features the same level of inertia as its predecessor. Additionally, a shorter connecting rod and new crankshaft position improve mass centralisation and contribute to the compact design. A plain big end bearing comprising of two force-fitted bearing shells ensure maximum reliability and durability, guaranteeing long service intervals of 135 hours.

Cylinder Head

The compact SOHC cylinder head offers maximum performance at the minimum possible weight. The new camshaft actuates four lightweight valves (titanium intake Ø=40mm 32,6g, steel exhaust Ø=33mm 42,6g) through a robust rocker arm system. Additionally, the timing drive is revised with a new, shorter timing chain and friction optimised chain guides which reduce drag and increase efficiency and performance. The new design of the cylinder head saves 350g.

Chromoly steel frame

While keeping the same successful geometry from MY 16, the hydro-formed, laser-cut and robot-welded frame is expertly crafted by WP Performance Systems. The 6mm wider and 2 mm lower steel tubes offer 20% higher torsional rigidity while longitudinal stiffness is reduced by 30%. The increased torsional rigidity improves stability and agility while reducing the longitudinal stiffness creates increased flexibility for better bump absorption and suspension functionality. The new frame weighs only 8.8 kg making it 0.6 kg lighter than its predecessor.