New and Improved Sinnis Terrain T125 launched for 2021

The learner legal Sinnis Terrain T125 gets more power for 2021, a smoother delivery and the same rugged charm it always had


SINNIS has just announced its learner legal adventure bike has gained updates for 2021, as the improved Terrain T125 is revealed.

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The bike is aimed squarely at commuters and new riders who don’t want to restrict themselves to just on-road riding. Indeed, since its launch, the Terrain has been regarded as one of the best adventure bikes for those riding on a provisional licence and CBT.

To reinforce this, the Terrain has evolved for 2021, with the new, liquid-cooled engine of the 2021 model producing 12.7bhp (up from 11.5bhp) and having a claimed smoother delivery throughout the rev range. Another mechanical upgrade for 2021 is the inclusion of a six-speed gearbox, the previous Terrain had a five-speed 'box.

The Sinnis Terrain T125 always had a strong adventure vibe to it, with a silhouette and style that made it unmistakable as a bike with off-road potential. The theme continues for 2021, with the new model getting the same rugged outline complete with crash bars and top-box and panniers.

The new bike also gets a double cable throttle, ‘O’ ring chain, and an upgraded battery, the final point will no doubt come in handy should you use the built-in USB port to charge your sat nav or phone.

The bike’s panniers pack a hefty 66.5-litres of luggage space into them, while the 14-litre fuel tank should allow for longer trips out of sight of civilisation.

The new 2021 Sinnis Terrain T125 should be landing in selected dealerships in April and has a suggested retail price of just £2895.

For more information, head to:

2021 Sinnis Terrain T125 specs

Max Power

9.5Kw / 12.7bhp

Max Torque


Max Speed



ZS 125

Engine Type

Single Cylinder

Engine Stroke

4 stroke

Engine Cooling

Water Cooled



Gear Type

1 Down 5 up – 6 Speed

Drive Type


Start Type


Fuel Delivery

Delphi Engine Management, EFI System

Front Brake

Hydraulic Disc

Rear Brake

Hydraulic Disc

Front Tyre

100/80-17 Mag style wheel

Rear Tyre

120/80-17 Mag Style Wheel

Tyre Specifics

Tubeless, 17 inch

Front Suspension

Telescopic Forks

Rear Suspension

Mono Shock









Seat Height




Handlebar Width


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