At the heart of the 2018 Yamaha Bolt custom - cruiser motorcycle, Yamaha pairs a 950.5 cc (58 cu in) air-cooled v2, four-stroke architecture with road-focused gearing. Internal engine geometry specifies a bore and stroke of 85.0 x 83.0 mm (3.3 x 3.3 inches) with a 9.0:1 compression ratio.
On the scales, the Bolt measures 245.9 kg (542 lbs) wet (curb). Rider ergonomics and chassis geometry center around a 691 mm (27.2 in) seat height — giving shorter riders and urban commuters confident flat-foot reach at traffic stops, combined with a 1,570 mm (61.8 in) wheelbase engineered for planted straight-line stability. The 12.11-liter (3.2 US gal) fuel tank paired with a rated consumption of 4.61 L/100 km provides an estimated theoretical range of roughly 263 km (163 miles) between fill-ups.
Within MotoLibrary's Yamaha archive, this model family spans 4 indexed model years from 2017 to 2020, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Theoretical Range
~263 km (163 mi)
Engine
Displacement950.5 ccm (58.00 cubic inches)
Engine TypeV2, four-stroke
Engine DetailsV2, four-stroke
Compression9.0:1
Bore x Stroke85.0 x 83.0 mm (3.3 x 3.3 inches)
Valves/Cylinder2
Fuel SystemInjection. Twin-Bore electronic fuel injection; throttle position sensor
Fuel ControlSingle Overhead Cams (SOHC)
IgnitionTCI (Transistor Controlled Ignition)
CoolingAir
Transmission
Gearbox5-speed
Final DriveBelt (final drive)
ClutchMultiplate wet clutch
Performance
Fuel Consumption4.61 litres/100 km (21.7 km/l or 51.02 mpg)
Greenhouse Gases107.0 CO2 g/km. (CO2 - Carbon dioxide emission)
Chassis
Frame TypeAluminum double-cradle
Front SuspensionTelescopic fork
Front Travel119 mm (4.7 inches)
Rear SuspensionDual shocks
Rear Travel71 mm (2.8 inches)
Wheelbase1570 mm (61.8 inches)
Ground Clearance130 mm (5.1 inches)
Wheels & Brakes
Front Tyre100/90-M19
Rear Tyre150/80-M16
Front BrakesSingle disc
Front Brake Ø298 mm (11.7 inches)
Rear BrakesSingle disc
Rear Brake Ø298 mm (11.7 inches)
WheelsWire spoked
Dimensions & Weight
Weight incl.245.9 kg (542.0 pounds)
Seat Height691 mm (27.2 inches) If adjustable, lowest setting.
Use this page to compare this motorcycle by its real specifications, not only by model name. Focus on the details that affect fit, comfort, handling, range and ownership.
Seat Height
Check the seat height against your inseam and riding posture before choosing a motorcycle.
Fuel Capacity
Fuel capacity helps estimate touring range and how often you may need to stop.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Suspension
Suspension details can matter for comfort, road feel and long-distance riding.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
