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.
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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 centre of the combustion chamber for more complete combustion & excellent power with reduced emissions
- 25,000 km valve adjustment intervals
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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)
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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
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Automatic cam chain tensioners reduce mechanical noise & simplify maintenance.
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"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
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Flat top, lightweight forged aluminum pistons.
- less reciprocating mass for fast engine response
- reduced mechanical vibration for excellent reliability
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Single pin style crankshaft.
- design accentuates V-twin engine character, pulse feel & sound
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Wet sump lubrication system with easy access, spin on oil filter & drain plug for easy oil changes.
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Classic side mounted 2.3 litre air box houses an easy access, a high-flow viscous paper-type filter.
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"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
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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
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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
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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
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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
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Air Injection System injects fresh air into exhaust ports to fully burn any unburnt fuel, further reducing exhaust emissions.
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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
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Tube-type, steel, swingarm compliments the frame & features a dual shock rear suspension system.
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Compact 1570 mm (61.8") wheelbase provides light, agile handling, for a fun riding experience.
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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
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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
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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
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298 mm rear wave-style disc brake is squeezed by single piston caliper.
- caliper mounted to the underside of the swingarm, reducing the centre of gravity for light handling
- location also hides the caliper for a clean, custom look
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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
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Short design, front & rear steel fenders for easy painting or customization.
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New, 13 litre, slim design flangeless fuel tank.
- 2.8 litre reserve capacity (low fuel light illuminates)
- high capacity electric fuel pump
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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
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Foot pegs are positioned more rearward than on a traditional cruiser for a more natural & upright riding position.
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Conventional low handlebar offers an upright riding position.
- excellent rider comfort
- bar can be changed to a different "bend" for easy customization or personal preferences
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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.
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60/55 watt high intensity halogen headlight with chromed bezel.
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"Vintage design" LED tail light.
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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.
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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-cancelling 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)
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