What category is the 2021 Sinnis 125 Terrain?

The 2021 Sinnis 125 Terrain has a Category of Enduro / offroad.

What is the engine size of the 2021 Sinnis 125 Terrain?

The 2021 Sinnis 125 Terrain has a Capacity: of 125.0 ccm (7.63 cubic inches).

What type of engine does the 2021 Sinnis 125 Terrain have?

The 2021 Sinnis 125 Terrain has a Engine type of Single cylinder, four-stroke.

What is the engine power of the 2021 Sinnis 125 Terrain?

The 2021 Sinnis 125 Terrain has a Power of 11.1 HP (8.1 kW) @ 9500 RPM.

Is the 2021 Sinnis 125 Terrain air cooled or liquid cooled?

The 2021 Sinnis 125 Terrain has a Cooling system of Air.

How many gears does the 2021 Sinnis 125 Terrain have?

The 2021 Sinnis 125 Terrain has a Gearbox of 5-speed.

How much does the 2021 Sinnis 125 Terrain weigh?

The 2021 Sinnis 125 Terrain has a Dry weight of 150.0 kg (330.7 pounds).

What is the seat height of the 2021 Sinnis 125 Terrain?

The 2021 Sinnis 125 Terrain has a Seat height of 800 mm (31.5 inches) If adjustable, lowest setting..

Sinnis 125 Terrain - 2021 Specifications and Reviews

Name: 2021 Sinnis 125 Terrain
Brand: Sinnis

The 2021 Sinnis 125 Terrain is an affordable entry-level enduro bike suited for novice off-road riders seeking lightweight versatility. Powered by an 11.1 hp single-cylinder four-stroke engine with EFI fuel injection, it delivers manageable performance for trail riding and casual adventures. Its telescopic forks, monoshock rear suspension, and dual front disc brakes provide reliable handling across mixed terrain.

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General information
Category	Enduro / offroad
Year	2021
Model	Sinnis 125 Terrain
Engine and Transmission Specifications
Transmission type	Chain (final drive)
Gearbox	5-speed
Cooling system	Air
Fuel system	Injection. EFI
Power	11.1 HP (8.1 kW) @ 9500 RPM
Engine type	Single cylinder, four-stroke
Capacity:	125.0 ccm (7.63 cubic inches)
Brakes, suspension, Frame and wheels
Rear brakes	Single disc
Front brakes	Double disc. Two-piston calipers.
Rear tire	120/80-17
Front tire	100/80-17
Rear Suspension	Monoshock
Front Suspension	Telescopic USD forks

Physical measures and capacities
Fuel capacity	14.00 litres (3.70 US gallons)
Wheelbase	1370 mm (53.9 inches)
Overall width	865 mm (34.1 inches)
Overall length	2090 mm (82.3 inches)
Overall height	1280 mm (50.4 inches)
Seat height	800 mm (31.5 inches) If adjustable, lowest setting.
Power/weight ratio	0.0742 HP/kg
Dry weight	150.0 kg (330.7 pounds)
Other specs
Maintenance	Find parts, fluids, filters, maintenance tools and service items on eBay
Instruments	Semi-digital
Starter	Electric
Color options	Satin Silver, Rosso Red

Performance Profile & Rider Fit

11.1 hp

Peak Power

Best For

Track10%

City60%

Cornering45%

Daily Riding55%

Touring30%

Passenger25%

Rider Profile

Best For	Well suited to new riders or learners building confidence, thanks to its low power output and manageable weight.
Purpose	Designed as an entry-level, road-biased trail bike for light commuting, learning, and occasional mild off-road excursions rather than serious adventure riding.
Rider Fit	Its 800mm seat height and light 150kg dry weight make it accessible to riders of most heights and physical strength levels.
Character	A friendly, unintimidating small-capacity trail-styled bike that favors approachability over outright performance.
Not Ideal For	Not suitable for experienced riders seeking highway speed, long-distance touring comfort, or genuine hardcore off-road capability.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.

Rider Fit Visualizer

2021 Sinnis 125 Terrain Rider Ergonomics Assessment

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Feet:

At 800mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with both feet flat on the 2021 Sinnis 125 Terrain, with a cramped knee angle of around 70 degrees and an upright riding position.

Data quality: measured. Assumes about 30mm of suspension sag once seated (a typical street-bike rule of thumb - stiffer or softer suspension will vary). This is an approximation from category-typical geometry and generic body proportions, not a measurement of this specific bike or you - sit on it before you buy.

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Rider Reviews

Total comments: 1

MotorcycleDB Review

The 2021 Sinnis 125 Terrain motorcycle is a versatile and stylish option for riders looking for a reliable and capable off-road machine. With a 125cc engine and rugged design, this bike is equally at home on city streets as it is on dirt trails. The Terrain's lightweight frame and responsive handling make it a joy to ride, while its comfortable seat and ergonomic design ensure that long journeys are a breeze. Whether you're a beginner or experienced rider, the Sinnis 125 Terrain is a great choice for those who want a reliable and affordable dual-purpose motorcycle. In conclusion, the 2021 Sinnis 125 Terrain motorcycle is a fantastic option for riders who want a versatile and capable off-road machine. With its powerful 125cc engine, rugged design, and comfortable ride, this bike offers a great balance of performance and practicality. Whether you're hitting the trails or navigating city streets, the Sinnis 125 Terrain is a reliable and stylish choice that won't break the bank. Consider this motorcycle for your next off-road adventure.