2021
Sinnis Jet II - Specifications & Review

Article Complete Info
| Articleid | 294986 |
|---|---|
| Category | Scooter |
| Make | Sinnis |
| Model | Jet II |
| Year | 2021 |
Chassis, Suspension, Brakes & Wheels
| Frontbrakes | Single disc. Hydraulic. |
|---|---|
| Frontsuspension | Telescopic forks |
| Fronttyre | 3.50-10 |
| Rearbrakes | Expanding brake (drum brake) |
| Rearsuspension | Coil spring |
| Reartyre | 3.50-10 |
Engine & Transmission
| Coolingsystem | Air |
|---|---|
| Displacement | 50.0 ccm (3.05 cubic inches) |
| Enginedetails | Single cylinder, four-stroke |
| Fuelsystem | Carburettor. Delphi |
| Gearbox | Automatic |
| Power | 3.9 HP (2.8 kW)) @ 7500 RPM |
| Transmissiontypefinaldrive | Belt |
Other Specifications
| Coloroptions | Neon |
|---|---|
| Starter | Electric |
Physical Measures & Capacities
| Dryweight | 135.0 kg (297.6 pounds) |
|---|---|
| Overallheight | 1280 mm (50.4 inches) |
| Overalllength | 2090 mm (82.3 inches) |
| Overallwidth | 865 mm (34.1 inches) |
| Powerweightratio | 0.0288 HP/kg |
| Seatheight | 710 mm (28.0 inches) If adjustable, lowest setting. |
About Sinnis
Country of Origin:
United Kingdom (brand/design); manufacturing via China with EU finishing
Founder:
Sinnis Motorcycles (Brighton-based distributor)
Best Known For:
Value 125–380 cc commuters, ADV-styled models, and learner bikes for the UK
Company History
Sinnis built a loyal UK following by pairing well-specced small motorcycles with local support—spares on the shelf, phone-answering dealers, and honest manuals. Early offerings focused on 125 cc commuters; later models added small-ADV and retro styles with ABS/CBS, EFI, and improved coatings for British weather. The brand’s real contribution is predictability for new riders: approachable seat heights, tidy fueling, and customer service that demystifies first ownership. Sinnis also nurtures community through ride-outs and training partners, treating the purchase as the start of a relationship. Historically, Sinnis exemplifies how a distributor can turn global platforms into trustworthy local products by sweating aftersales details and spec choices that match real UK roads and licensing.
