2015 Yamaha Bolt R-Spec

2015 Yamaha Bolt R-Spec

A new trend is emerging in the motorcycle world, with a "back to basics" approach. Designers and custom builders are stepping back to a time when the mechanical beauty of a motorcycle was highlighted in its styling. The Bolt R-Spec's simple styling, compact layout, V-Twin power and natural riding position combine to offer an incredibly fun riding experience.

• 942cc, air-cooled, SOHC, 4-valves per cylinder, 60° V-twin engine produces outstanding low-and mid-range torque. Maximum torque is reached at only 3,000 rpm - for an exceptionally fun riding experience.

• One-piece cylinder heads feature 4-valves per cylinder to provide optimum volumetric or filling efficiency for maximum power output. The benefit of a 4-valve design is two smaller valves allow more air flow and a higher rpm limit than a single heavier larger valve.

• Pent roof combustion chamber design with optimized squish area forces the fuel / air mixture toward the centre of the combustion chamber (and the centrally located long reach spark plug) for faster, more complete combustion, improved power and reduced emissions.

• The SOHC valve train features 31.5mm intake and 28mm exhaust valves with single valve springs which reduce friction and power losses. Specially designed "Y" shaped roller rocker arms activate the valves. The roller rocker system utilizes needle bearings that "roll" directly on the cam lobes allowing the lift of 2 valves at the same time without producing excessive camshaft wear and friction.

• Tube type, single backbone, double cradle steel frame offers a natural riding position, roomy ergonomics and a low seat height. This frame utilizes a 4-point rigid engine mounting system to optimize the overall rigidity balance for superior handling. The engine is mounted low in the chassis to provide a low center of gravity for light, easy handling.

• Conventional tube-type, steel, short design swingarm compliments the frame and utilizes a dual shock suspension system.

• The Bolt R-Spec features a low (690mm / 27.2") seat height. A very narrow design through the seat-fuel tank junction makes it even easier to place both feet flat on the ground, an important benefit for many riders.

• Industry-leading Star family fit and finish

• Extra wide front brake and clutch levers provide a quality feel.

• Self cancelling turn signals with stylish clear lenses.

• Upper & lower belt covers help prevent debris from entering the belt and pulley areas.

• Locking fuel cap and locking tool kit cover.

• Traditional style, fork mounted steering lock.

• Low-maintenance, sealed battery.

• Lean angle sensor will kill the engine if the bike has tipped over.

• Yamaha diagnostic service tool coupler.