US 2026/0307749 A1Published application

Modular all-terrain minibike with interchangeable wheel, ski and track assemblies

OwnerHeath Dyerinventor

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Abstract

A convertible all-terrain minibike that includes a frame assembly supporting an engine and a drivetrain configured to transmit rotational power to a rear propulsion system. The convertible all-terrain minibike is selectively configurable between multiple terrain-operating modes through interchangeable components. A front steering assembly is selectively (i.e., removably) mountable as either a front wheel assembly or a front ski assembly, while the rear propulsion system is selectively (i.e., removably) mountable as either a rear wheel assembly or a rear track assembly. The modular configuration enables operation across diverse terrain types including dirt, gravel, mud, sand, snow, and ice. The drivetrain can include a chain-driven or belt-driven system and can further incorporate a centrifugal clutch for automatic engagement. The convertible all-terrain minibike can be provided as a complete vehicle or as a conversion kit including interchangeable components.

Claims20

Dependent claims

A convertible all-terrain minibike comprising:

an interchangeable forward terrain-engaging assembly;
a frame assembly;
a seat assembly;
a handlebar assembly;
a power unit;
and
an interchangeable rear propulsion system;
wherein said frame assembly constructed from a plurality of welded tubular members;
wherein said seat assembly is mounted to said frame assembly and is configured to support a rider;
wherein said handlebar assembly is positioned at a forward portion of said frame assembly and comprises handle grips to enable a user to control steering and operation of the convertible all-terrain minibike;
wherein said power unit comprises an engine mounted to said frame assembly;
wherein said engine is operatively connected to a drivetrain system including a drive sprocket and a driven sprocket coupled with a drive chain;
wherein said drivetrain system transfers rotational power from said engine to said interchangeable rear propulsion system;
wherein said interchangeable forward terrain-engaging assembly selectively interchangeable between a front wheel assembly and a front ski assembly;
and
further wherein the convertible all-terrain minibike selectively operable on snow and at least two other terrain types selected from the group consisting of mud, sand, gravel, dirt, and uneven off-road surfaces.

13 more elements

A convertible all-terrain minibike comprising:

an interchangeable forward terrain-engaging assembly;
a frame assembly;
a seat assembly;
a handlebar assembly;
a power unit;
and
an interchangeable rear propulsion system;
wherein said frame assembly constructed from a plurality of welded tubular members;
wherein said seat assembly is mounted to said frame assembly and is configured to support a rider;
wherein said handlebar assembly is positioned at a forward portion of said frame assembly and comprises handle grips to enable a user to control steering and operation of the convertible all-terrain minibike;
wherein said power unit comprises an engine mounted to said frame assembly;
wherein said engine is operatively connected to a drivetrain system including a drive sprocket and a driven sprocket coupled with a drive chain;
wherein said drivetrain system transfers rotational power from said engine to said interchangeable rear propulsion system;
wherein said interchangeable forward terrain-engaging assembly selectively interchangeable between a front wheel assembly and a front ski assembly;
wherein said front ski assembly comprises a front fork assembly, a shock absorber, and a ski;
and
further wherein said shock absorber is connected in a rearward orientation between said front fork assembly and said ski.

14 more elements

A method of converting an all-terrain minibike for use on different terrain types, the method comprising the steps of:

providing an interchangeable forward terrain-engaging assembly, a frame assembly, a seat assembly, a handlebar assembly, a power unit, and an interchangeable rear propulsion system;
wherein said handlebar assembly is positioned at a forward portion of said frame assembly and comprises handle grips to enable a user to control steering and operation of the convertible all-terrain minibike;
wherein said power unit comprises an engine mounted to said frame assembly;
wherein said engine is operatively connected to a drivetrain system including a drive sprocket and a driven sprocket coupled with a drive chain;
wherein said drivetrain system transfers rotational power from said engine to said interchangeable rear propulsion system;
selectively interchanging said interchangeable forward terrain-engaging assembly between a front wheel assembly and a front ski assembly;
and
selectively interchanging said interchangeable rear propulsion system between a rear wheel assembly and a rear track assembly.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 19/636,065Filed 1 Apr 2026
Priority: 3 Apr 2025
Published: 8 Oct 2026
Term ends: Not estimatedThe source records don’t support an estimate.

Classification20 codes

B62D 55/04
Endless track vehicles: with tracks and alternative ground wheels, e.g. changeable from endless track vehicle into wheeled vehicle and vice versa
B62D 55/02
Endless track vehicles: with tracks and additional ground wheels
B62D 55/30
Endless track units; Parts thereof: track-tensioning means
B62K 11/04
Frames: characterised by the engine being between front and rear wheels