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MotoLibrary Score
34/100Commuter
Power/Weight
0.08 hp/kg
Torque
12 Nm
Engine
150 ccm
Technical Overview
2021 Um Hypersport 150 Technical Analysis & Specification Breakdown
Built around Um's sport motorcycle platform, the 2021 Um Hypersport 150 pairs a 150 cc (9.2 cu in) air-cooled single cylinder, four-stroke architecture with road-focused gearing. In factory specification, peak output is rated at 12.1 HP (8.8 kW) at 8,000 rpm while maximum torque reaches 11.5 Nm (8.5 lb-ft) at 6,000 rpm, transferring power to the rear wheel through a 5-speed gearbox and chain final drive. With a specific output of 80.7 HP per liter and a 2,000 rpm working window between peak torque (6,000 rpm) and peak power (8,000 rpm), the engine character is indicating a tractable, stress-free state of tune focused on everyday usability and broad torque delivery.
On the scales, the Hypersport 150 measures 143 kg (315 lbs) dry, translating to a power-to-weight ratio of 0.08 HP/kg (11.82 kg per horsepower). Rider ergonomics and chassis geometry center around a 820 mm (32.3 in) seat height — resulting in a taller command-style riding posture suited to medium-to-tall inseams, combined with a 1,390 mm (54.7 in) wheelbase engineered for quick, flickable steering geometry.
Specific Output
80.7 HP/L
Power-to-Weight
0.08 HP/kg (11.82 kg/HP)
Power Band Window
6,000–8,000 rpm
Standover Height
820 mm (32.3 in)
Engine
Displacement150.0 ccm (9.15 cubic inches)
Engine TypeSingle cylinder, four-stroke
Power12.1 HP (8.8 kW)) @ 8000 RPM
Torque11.5 Nm (1.2 kgf-m or 8.5 ft.lbs) @ 6000 RPM
Compression9.3:1
Bore x Stroke62.0 x 49.5 mm (2.4 x 1.9 inches)
Fuel SystemCarburettor
IgnitionCDI
CoolingAir
Transmission
Gearbox5-speed
Final DriveChain (final drive)
Chassis
Front SuspensionHydraulic Telescopic
Rear SuspensionHydraulic monoshock with spring
Wheelbase1390 mm (54.7 inches)
Wheels & Brakes
Front Tyre110/80-17
Rear Tyre130/70-17
Front BrakesSingle disc. Hydraulic.
Rear BrakesExpanding brake (drum brake)
Dimensions & Weight
Dry Weight143.0 kg (315.3 pounds)
Power/Weight0.0843 HP/kg
Seat Height820 mm (32.3 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.
Power
Compare engine output with similar motorcycles if acceleration, highway use or two-up riding matters.
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.
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.
