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Technical Overview
2010 UM Nitrox 125 Technical Analysis & Specification Breakdown
Built around UM's allround motorcycle platform, the 2010 UM Nitrox 125 features a 125 cc (7.6 cu in) air-cooled single cylinder, four-stroke configuration. Internal engine geometry specifies a bore and stroke of 56.0 x 49.5 mm (2.2 x 1.9 inches) with a 9.0:1 compression ratio.
On the scales, the Nitrox 125 measures 110 kg (243 lbs) dry. Rider ergonomics and chassis geometry center around a 786 mm (30.9 in) seat height — offering a neutral standover height that accommodates most average-inseam riders without sacrificing cornering clearance, combined with a 1,300 mm (51.2 in) wheelbase engineered for quick, flickable steering geometry. The 10.2-liter (2.7 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Standover Height
786 mm (30.9 in)
Engine
Displacement125.0 ccm (7.63 cubic inches)
Engine TypeSingle cylinder, four-stroke
Engine DetailsSingle cylinder, four-stroke
Compression9.0:1
Bore x Stroke56.0 x 49.5 mm (2.2 x 1.9 inches)
Fuel SystemCarburettor
Fuel ControlSingle Overhead Cams (SOHC)
IgnitionCDI
CoolingAir
Transmission
Gearbox5-speed
Final DriveChain (final drive)
Chassis
Front SuspensionTelescopic Fork
Rear SuspensionSwingarm with dual spring shock absorbers
Wheelbase1300 mm (51.2 inches)
Wheels & Brakes
Front Tyre2.75-18
Rear Tyre90/90-18
Front BrakesSingle disc
Rear BrakesExpanding brake (drum brake)
Dimensions & Weight
Dry Weight110.0 kg (242.5 pounds)
Seat Height786 mm (30.9 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.
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.
