2024 Yamaha Bolt R-Spec

Notes:

Description 

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.

Key Features 

• Blacked out, 942 cc, air-cooled, SOHC, 4-valve per cylinder, fuel injected, 60° V-twin power plant pumps out impressive power & torque. Maximum torque is reached at 3,000 rpms, for relaxed cruising performance.

• SOHC, pent-roof, 4-valve cylinder heads.

• Specially designed roller rockers activate the valves.

• No fuss, traditional air-cooled engine design.

• Automatic cam chain tensioners reduce mechanical noise & simplify maintenance.

• "Liner-less", ceramic composite-plated cylinder bores.

Engine

• Blacked out, 942 cc, air-cooled, SOHC, 4-valve per cylinder, fuel injected, 60° V-twin power plant pumps out impressive power & torque. Maximum torque is reached at 3,000 rpms, for relaxed cruising performance. 

• SOHC, pent-roof, 4-valve cylinder heads. 

• 4-valve design optimizes breathing efficiency & overall engine performance at all rpms

• 31.5 mm intake & 28 mm exhaust valves use friction reducing single valve springs

• compact pent roof combustion chamber design & optimized squish area forces the fuel / air mixture toward the center of the combustion chamber for more complete combustion & excellent power with reduced emissions

• 25,000 km valve adjustment intervals

• Specially designed roller rockers activate the valves. 

• Y shaped roller rocker arms allows a greater amount of valve lift without causing excessive camshaft wear & friction

• slipper portion of the rocker arm utilizes a needle bearing for reduced camshaft wear & reduced sliding resistance (friction) 

• No fuss, traditional air-cooled engine design. 

• cylinders have a tapered "V" appearance to highlight the V-twin engine design

• cooling fins have been optimized for reliable cooling even in stop & go traffic 

• Automatic cam chain tensioners reduce mechanical noise & simplify maintenance. 

• "Liner-less", ceramic composite-plated cylinder bores. 

• ceramic coating sprayed directly on the aluminum blocks, eliminating the liners & reducing weight

• excellent heat dissipation for consistent power delivery

• ceramic coating enhances the thin film of oil between the cylinder & piston, reducing friction & increasing power 

• extended cylinder service life 

• Flat top, lightweight forged aluminum pistons. 

• less reciprocating mass for fast engine response

• reduced mechanical vibration for excellent reliability

• Single pin style crankshaft. 

• design accentuates V-twin engine character, pulse feel & sound

• Wet sump lubrication system with easy access, spin on oil filter & drain plug for easy oil changes. 

• Classic side mounted 2.3 liter air box houses an easy access, high-flow viscous paper-type filter. 

• "Closed loop", dual bore, 35 mm throttle body fuel injection system with linear throttle response for easy riding. 

• system uses throttle position sensor (TPS) to help optimize intake air flow & power

• ISC or idle speed controller ensures a steady idle

• 4 - hole injectors optimize fuel atomization & feature a dual spray pattern for more complete combustion chamber filling 

• "closed loop system" uses an oxygen sensor to "sniff" spent exhaust & automatically adjust the fuel / air ratio for reduced emissions

• oxygen sensor is located before the mufflers, so the use of aftermarket "slip-on" mufflers will not affect the closed loop system

• fuel injection benefits include; excellent throttle response, choke-free starting, steady idling during warm up, excellent fuel economy & reduced emissions

• Smooth-shifting, 5-speed transmission. 

• optimized gear ratios match engine power for strong acceleration 

• 5th gear offers reduced engine rpms at highway speeds

• clutch is an "outer pull" design for light, easy lever effort 

• Special narrow design belt drive final drive. 

• narrow 21 mm wide belt design

• cleaner & quieter than chain drive... no messy chain splatter 

• low maintenance... no regular adjustments or lubrication required

• belt drive system simplifies customization 

• Maintenance-free transistor controlled ignition (TCI). 

• produces a strong spark for fast starts

• provides precise ignition timing / mapping for optimum engine performance at all rpms 

• 2 into 1 exhaust system. 

• large diameter header pipes for maximum flow

• dual stage muffler produces a low, throaty V-Twin growl

• heat shields protect rider & passenger from hot components

• 3-way honeycomb catalyzer reduces harmful exhaust emissions

• Air Injection System injects fresh air into exhaust ports to fully burn any unburnt fuel, further reducing exhaust emissions.

Chassis

• Tube type, double cradle steel frame. 

• provides a natural riding position & roomy ergonomics combined with a low 690 mm (27.2") seat height

• frame utilizes a rigid engine mounting system optimizing the overall chassis rigidity balance for superior handling

• engine mounting position provides a low center of gravity for light, easy handling

• Tube-type, steel, swingarm compliments the frame & features a dual shock rear suspension system. 

• Compact 1570 mm (61.8") wheelbase provides light, agile handling, for a fun riding experience. 

• The 41mm KYB front fork offers 120 mm (4.7") of wheel travel. 

• good ride comfort & compliance

• chip guards help prevent fork tube "nicks" & protect fork seals 

• Adjustable, premium, dual remote reservoir gas charged shock rear suspension. Rear wheel travel is 70 mm (2.8"). 

• 5 - positions of spring preload adjustability to suit load and / or rider preferences

• remote reservoir design keeps the shock cooler for more consistent damping performance 

• Single, 298 mm front disc brake features a floating, wave-style disc squeezed by a twin piston caliper. 

• strong, confidence-inspiring stopping power

• wave-style disc offers more surface area than a conventional round disc for excellent heat dissipation

• The 298 mm rear wave-style disc brake is squeezed by a single piston caliper. 

• caliper mounted to the underside of the swingarm, reducing the center of gravity for light handling

• location also hides the caliper for a clean, custom look 

• Lightweight 12-spoke, cast aluminum wheels. 

• front wheel size is MT2.50 x 19; tire size is 100/90 x 19

• rear wheel size is MT3.50 x 16; tire size is 150/80 x 16

• tubeless tires

• Short design, front & rear steel fenders for easy painting or customization. 

• New, 13 liter, slim design flangeless fuel tank. 

• 2.8 liter reserve capacity (low fuel light illuminates) 

• high capacity electric fuel pump 

• Separate rider & passenger seats feature a dual texture, premium buckskin/suede design. 

• good comfort & support 

• seat height is 690 mm or 27.2" off the ground, enhancing rider confidence

• narrow design through seat-fuel tank junction makes it easier to get both feet on the ground

• passenger seat can be easily removed if desired

• Foot pegs are positioned more rearward than on a traditional cruiser for a more natural & upright riding position. 

• Conventional low handlebars offer an upright riding position. 

• excellent rider comfort

• bar can be changed to a different "bend" for easy customization or personal preferences

• Triple clamp mounted LCD digital meter / instrument. 

• functions include; speedometer, odometer, dual trip meters, fuel reserve trip meter (counts kilometers since low fuel light activated), clock & range of warning lights

• self-diagnostic function

• instrument functions can be "tabbed" through & reset using the RHS handlebar switch gear, allowing the operator to change instrument functions without taking hands off the bars. 

• 60/55 watt high intensity halogen headlight with chrome bezel. 

• "Vintage design" LED tail light. 

• The Bolt R-Spec is designed to be compact & slim, featuring clean, simple styling with the ability to easily personalize / customize the bike with a wide range of Genuine Star accessories.

Details

• Industry-leading Star family fit & finish

• Upper & lower belt drive cover helps prevent debris from entering the belt and pulley areas

• Fork mounted steering lock

• Self-canceling turn signals

• Passing switch (flashes high beam)

• Traditional dipstick to check oil level

• Yamaha diagnostic service tool coupler

• Low-maintenance, sealed battery (battery should be charged during winter storage)