Sinnis RSX125 - Specifications & Review

RSX125

Article Complete Info

Articleid337847
CategoryNaked bike
MakeSinnis
ModelRSX125
Year2021

Chassis, Suspension, Brakes & Wheels

FrontbrakesSingle disc. Hydraulic.
FrontsuspensionTelescopic forks
Fronttyre100/70-17
RearbrakesSingle disc. Hydraulic.
RearsuspensionAdjustable Single Monoshock
Reartyre100/70-17

Engine & Transmission

CoolingsystemAir
Displacement125.0 ccm (7.63 cubic inches)
EnginedetailsSingle cylinder, four-stroke
FuelsystemInjection. EFI
Gearbox5-speed
Power11.0 HP (8.0 kW)) @ 9500 RPM
TransmissiontypefinaldriveChain

Other Specifications

ColoroptionsPearl White, Midnight Purple
InstrumentsSemi-Digital
StarterElectric

Physical Measures & Capacities

Dryweight140.0 kg (308.6 pounds)
Fuelcapacity13.50 litres (3.57 gallons)
Overallheight1070 mm (42.1 inches)
Overalllength2065 mm (81.3 inches)
Overallwidth864 mm (34.0 inches)
Powerweightratio0.0786 HP/kg
Seatheight800 mm (31.5 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.

Other Years

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