2021 Harley-Davidson Street Bob 114 Technical Analysis & Specification Breakdown
At the heart of the 2021 Harley-Davidson Street Bob 114 custom - cruiser motorcycle, Harley-Davidson utilizes a 1868.2 cc (114 cu in) air-cooled v2, four-stroke layout. In factory specification, maximum torque reaches 161.4 Nm (119 lb-ft) at 3,000 rpm, transferring power to the rear wheel through a 6-speed gearbox and belt final drive. Internal engine geometry specifies a bore and stroke of 102.0 x 114.3 mm (4.0 x 4.5 inches) with a 10.5:1 compression ratio.
On the scales, the Street Bob 114 measures 298.9 kg (659 lbs) wet (curb). Rider ergonomics and chassis geometry center around a 655 mm (25.8 in) seat height — giving shorter riders and urban commuters confident flat-foot reach at traffic stops, combined with a 1,630 mm (64.2 in) wheelbase engineered for planted straight-line stability. The 13.2-liter (3.5 US gal) fuel tank paired with a rated consumption of 5 L/100 km provides an estimated theoretical range of roughly 264 km (164 miles) between fill-ups.
Within MotoLibrary's Harley-Davidson archive, this model family spans 4 indexed model years from 2021 to 2024, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Theoretical Range
~264 km (164 mi)
Engine
Displacement1868.2 ccm (114.00 cubic inches)
Engine TypeV2, four-stroke
Engine DetailsMilwaukee-Eight® 114
Torque161.4 Nm (16.5 kgf-m or 119.0 ft.lbs) @ 3000 RPM
Compression10.5:1
Bore x Stroke102.0 x 114.3 mm (4.0 x 4.5 inches)
Fuel SystemInjection. Electronic Sequential Port Fuel Injection (ESPFI)
Fuel ControlDouble Overhead Cams/Twin Cam (DOHC)
CoolingAir
Transmission
Gearbox6-speed
Final DriveBelt (final drive)
ClutchMulti-plate with diaphragm spring in oil bath
DrivelineChain 34/46 ratio primary drive
Performance
Fuel Consumption5.00 litres/100 km (20.0 km/l or 47.04 mpg)
Greenhouse Gases116.0 CO2 g/km. (CO2 - Carbon dioxide emission)
Exhaust2-into-2 offset shotgun; catalyst in muffler
Chassis
Rake30.0°
Trail157 mm (6.2 inches)
Front SuspensionTelescopic fork
Rear SuspensionTwin shocks
Wheelbase1630 mm (64.2 inches)
Ground Clearance125 mm (4.9 inches)
Wheels & Brakes
Front Tyre100/90-B19
Rear Tyre150/80-B16
Front BrakesSingle disc. Optional ABS. 4-piston fixed.
Rear BrakesSingle disc. Optional ABS. 2-piston
WheelsGloss Black, Steel Laced.
Dimensions & Weight
Dry Weight287.6 kg (634.0 pounds)
Weight incl.298.9 kg (659.0 pounds)
Seat Height655 mm (25.8 inches) If adjustable, lowest setting.
Overall Length2320 mm (91.3 inches)
Fuel Capacity13.20 litres (3.49 US gallons)
Oil Capacity4.70 litres (4.97 US quarts)
Other
StarterElectric
Color OptionsVivid Black, Deadwood Green, Stone Washed White Pearl, Baja Orange
Instruments2.14 inch viewable area LCD display with speedometer, gear, odometer, fuel level, clock, trip, range and tachometer indication
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.
Torque
Torque is useful for judging real-world pull, especially for touring, commuting and loaded riding.
Seat Height
Check the seat height against your inseam and riding posture before choosing a motorcycle.
Weight
Compare weight carefully because it affects low-speed handling, parking and confidence.
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.
