Chassis & Frame

Building with our base model FA270XH 

Adavanced front end and extended frame, built to comfortably accommodate both teens and adults. 

Key upgrades include:

Pinion rack steering system for tighter turns and improved drivability.

Front hydraulic brakes integrated into a three-way system (front + rear), ensuring serious stopping power.

Half-cage cockpit with side bars and canopy roll cage for extra safety and a sleek look.

Door nets to block debris and add an aggressive aesthetic.

Seating & Safety

Out with the plastic, in with the premium:

A double XL fiberglass seat for snug, secure seating — wider at the base, tight around the waist.

Although not shown in early photos, we’ve also included a 4-point safety harness for added protection.

The Rear End: Total Overhaul

We gutted the stock rear components and installed:

A 40mm solid axle with full-length keyway for adjustable positioning.

Pillow block bearings, CNC hubs, and axle collars to eliminate lateral shifting.

A 51-tooth sprocket and 428 O-ring H-chain (motorcycle grade) for bulletproof power transfer.

Wheels & Tires

Front: 16x8x7 on aluminum rims with double XL knobby treads.

Rear: 18x9.5x10 — bigger, wider, and more aggressive to dominate rough terrain.

 Engine & Powertrain: Beast Mode Activated

448cc motor, producing a raw 23–25 HP (up from the stock 16 HP). 

Enhancements include:

Governor removal

Billet flywheel

Heavier valve springs

PWK 34 slide carburetor (with adapter)

Pod air filter (not in images, but its there)

40Series CVT Torque converter 

 — translating into punchier acceleration and higher top speed.

Fuel Tank Relocation

One of the smartest changes we made was relocating the fuel tank to the center of the vehicle, away from the rear. This improves the center of gravity, which means better balance, less rear-end weight, and more stability. A new fuel pump takes care of feeding the carb.

Final Thoughts

This build may be experimental, but it’s already ticking every box: performance, safety, modularity, and sheer off-road excitement. 

We’re proud of how it’s come together using only components available in our catalog today.

Nicholas - 0421 242 391

nicholas@helmetkarts.com

Lawrence - 0466 846 104

info@helmetkarts.com