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Four-cycle · 4C

4Stroke

The 2026 4C chassis — redesigned with 1.250" S-R main rails, a new steering box and a switchable 8.5L / 3.5L fuel tank. Finished in racing black.

4 Stroke
Rolling chassis from£ TBCexc. VAT · 2 ~ 4 weeks lead time
Backed in the UK
  • Spares stocked in the UK
  • UK team trackside at every race weekend
  • Support by phone, WhatsApp or email
Need spares?
01 — Who it’s for

Four-stroke, done properly.

Adjustable geometry and a switchable fuel tank, so one chassis covers your four-stroke racing.

Class 01GX-UKSuit all the 4 strokes classes
ClassJunior Senior
4C chassis from the front
Class 02GX-UKSuit all the 4 strokes classes
ClassCadet
4C chassis from the front
02 — Up close

Every detail, factory fresh.

Racing black frame, in-house components and a finish you’ll notice in the paddock.

Rear brake disc and axle from above
Rear brake
Steering column and fuel tank
Fuel tank
Fuel tank and floor tray
Floor tray
Rear axle and bearing carrier
Rear axle
Rear bumper and axle
Rear end
Front nose bodywork with Factory Karts graphics
Bodywork
Slick tyre and wheel
Wheels & tyres
Steering wheel with Factory Karts branding
Steering wheel
03 — Spec sheet

The numbers.

Everything you need to compare. Want it set up for your driver? Talk to the UK team.

Ask for the full spec sheet
Chassis
4C 4-Cycle
Frame finish
Racing black
Main rails
1.250" S-R tubing
Wheelbase
Adjustable
Steering upright
Fully adjustable, new steering box
Fuel tank
Switchable 8.5L / 3.5L
Brakes
MCP Lite
Axle
1020 Type B
Stub axle
17mm × 8mm × 1.5
Rear hubs
Aluminium
Wheels
DWT 130 × 210
Seat
RSV1 Flatbottom
Steering wheel
330mm embroidered

Source: Factory Karts US spec sheet, 2026 model. UK specification may vary — ask the team.

KZ chassis side view
Test day

Don’t take our word.
Drive one.

Request a test day