2021 Swm RS 125 R Technical Analysis & Specification Breakdown
At the heart of the 2021 Swm RS 125 R enduro - offroad motorcycle, Swm features a 124.7 cc (7.6 cu in) liquid-cooled single cylinder, four-stroke configuration. In factory specification, peak output is rated at 14.8 HP (10.8 kW), transferring power to the rear wheel through a 6-speed gearbox and chain final drive. With a specific output of 118.7 HP per liter, the engine character is reflecting a performance-oriented street tune that balances strong mid-range pull with an energetic top-end rush.
On the scales, the RS 125 R measures 109 kg (240 lbs) dry, translating to a power-to-weight ratio of 0.14 HP/kg (7.36 kg per horsepower). Rider ergonomics and chassis geometry center around a 950 mm (37.4 in) seat height — reflecting a long-travel chassis stance that favors ground clearance and off-pavement control, combined with a 1,465 mm (57.7 in) wheelbase engineered for balanced agility and highway composure. The 7.5-liter (2 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Within MotoLibrary's Swm archive, this model family spans 3 indexed model years from 2016 to 2021, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Specific Output
118.7 HP/L
Power-to-Weight
0.14 HP/kg (7.36 kg/HP)
Standover Height
950 mm (37.4 in)
Engine
Displacement124.7 ccm (7.61 cubic inches)
Engine TypeSingle cylinder, four-stroke
Power14.8 HP (10.8 kW))
Compression12.9:1
Bore x Stroke58.0 x 47.2 mm (2.3 x 1.9 inches)
Valves/Cylinder4
Fuel SystemInjection
Fuel ControlDouble Overhead Cams/Twin Cam (DOHC)
IgnitionElectronic
CoolingLiquid
Transmission
Gearbox6-speed
Final DriveChain (final drive)
ClutchWet, multiplate type; mecanical control
Performance
Emission DetailsEuro 5
Chassis
Front SuspensionUpside down telescopic hydraulic fork with advanced axle
Front Travel220 mm (8.7 inches)
Rear SuspensionProgressive “soft damp” single hydraulic shock absorber
Rear Travel260 mm (10.2 inches)
Wheelbase1465 mm (57.7 inches)
Ground Clearance320 mm (12.6 inches)
Wheels & Brakes
Front Tyre80/90-21
Rear Tyre110/80-18
Front BrakesSingle disc. CBS, floating caliper
Front Brake Ø260 mm (10.2 inches)
Rear BrakesSingle disc. CBS, floating caliper
Rear Brake Ø220 mm (8.7 inches)
Dimensions & Weight
Dry Weight109.0 kg (240.3 pounds)
Power/Weight0.1353 HP/kg
Seat Height950 mm (37.4 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.
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.
