Model Description

Dignified Behemoth

We wanted to make the Mastiff the king of the Mutts, so with that in mind, we decided to add a little love here and there to make him a little different yet still retain that unmistakable outline of a Mutt Motorcycle.

First up is that monster tank designed specifically for the Mastiff and the GT-SS. We wanted to keep the classic tank shape but add a helping of steroids, so we boosted the size to 17 litres. Sitting on the Mastiff and looking down at the huge tank is a beautiful sight. We topped the tank off with a neat Monza style chrome cap for that classic British vibe.

‘Details, details, don’t bother me with details’

We’ve gone a step further with the detailing on the Mastiff

Up front we have a super wide deep tread tyre wrapped around a black rim 18inch with stainless spokes, cropped brushed aluminium mudguard, headlight grill and our beautiful stainless steel mini speedometer topped off with a set of anodised black Mutt bars. Look closer and you’ll see some super neat little details. We’ve got those super cool machined LED indicators, CNC machined headlight brackets, fork caps and head stem nut and those oh so pretty black anodised handlebar clamps. Looks pretty neat eh? (These details are not on these prototype photos so check out this puppy in the flesh at your local dealer). Moving along the bike we’ve gone for a custom flat black and flat silver paint job accentuating the shape of that hefty tank, we’ve continued the paint theme on to the side panels. The contoured diamond stitch tan seat and grips set off the paint a treat.

Model Specification

  • Other


  • Dimensions


    (DRY) 125kg

    Seat Height


  • Engine

    Engine Type

    4-stroke single cylinder



    Max Power


    Max Torque


    Fuel Tank

    15L / 14L

  • Transmission


    5 speed manual

  • Performance

    Top Speed



    2 years