Sinnis RSX 125 Header
Sinnis RSX 125

Built for the Street
From only £2050

The Sinnis RSX125, with its cutting-edge trellis frame and radical style has been designed for those who need the extra edge on the street. Its naked styling draws attention from every angle.

  • Trellis Frame

  • Superb Build Quality

  • 24 Month Warranty

Sinnis RSX 125 - Pearl White

Your Style,
Your Colour.

  • Pearl White
  • Midnight Purple
Sinnis RSX 125 Slider

Innovative Lighting

The RSX 125 captures style at its core with innovative DRL (Daylight Running Lights) LED lighting built into the front fairings, as well as a powerful headlight showing you the path ahead. You can power and charge your devices with a handy dash mount USB port

Sinnis RSX 125 Slider

Ready for Action

Available in Midnight Purple or Pearl White with Red, with its Street Fighter styling, thanks to its latest design trellis frame the RSX looks far more imposing than a normal 125cc machine. A small belly-pan is located under the bikes front frame as an aid to aerodynamics.

Sinnis RSX 125 Slider

On Screen Display

A fully digital screen with user defined colours, fuel gauge, mph/kph and many other features provides you will all the information, whilst a comfortable ergonomical designed seat and handlebar set-up accounts for a sublime ride in a sit-up position

Specifications and Technical Details


  • Model Name:
    Sinnis RSX 125


  • Max Power:
    8.3Kw / 11.2bhp


  • Engine:
    ZS125 Developed
  • Engine Type:
    Single Cylinder
  • Engine Stroke:
  • Engine Cooling:
    Air Cooled
  • Displacement:
    125 cc
  • Gear Type:
    1 Down and 4 up, 5 Speed
  • Drive Type:
  • Start Type:
  • Fuel Delivery:
    Delphi engine management, EFI system

Braking System

  • Front Brake:
    Hydraulic Disc
  • Rear Brake:
    Hydraulic Disc


  • Front Tyre:
  • Rear Tyre:
  • Tyre Specifics:
    Tubeless, 17 inch
  • Front Suspension:
    Telescopic Forks
  • Rear Suspension:
    Mono Shock


  • Length:
  • Width:
  • Height:
  • Seat Height:
  • Wheelbase:
  • Handlebar Width:

The Engine.

The Sinnis RSX shares the same power plant as the Sinnis Hoodlum and the Terrain models. Although geared and managed differently to its cousins, the engine itself has a 2 valve head and is a single cylinder producing 11.2bhp with of torque and mated to a 5 speed transmission with a wet multi-plate clutch. Fuel economy of 80mpg is easily achievable around town or nearer 100mpg extra urban whilst power delivery is incredibly smooth thanks to the engine management system and fuel injection producing excellent power along with low emission output

ZS125 Developed
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Find your local Sinnis Dealer

If you are ready to make a purchase or simply wish to see a Sinnis model in person and find out more, use our interactive map to find your nearest Sinnis dealer.

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Why Buy Sinnis

Why Buy Sinnis

We are a small team based in Brighton UK, all of whom have a passion about the brand and motorcycling in general, this sets us apart from others...

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Warranty Information

The Sinnis Warranty

To protect you against the cost of replacement parts should something unexpectedly go wrong, all Sinnis machines come with a 12 or 24 month warranty as standard.

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Models in pictures are subject to change without notice and may have optional extras equipped