STOMP RACING Z3-140CC BIG WHEEL PIT BIKE 2025 MODEL

Back in 2007 Stomp were the first to take the legendary YX140 engine and squeeze it into a pit bike named “SuperStomp 140”. This absolute killer combination of an aftermarket frame and bonkers engine put Stomp firmly on the map. Ever since, Stomp fans and customers have been going crazy for their Pit Bikes, making Stomp a globally recognised brand. The Z3-140 continues this epic motorcycle brand legacy. It is still powered by that immense 4-stroke thumping single cylinder YX140. The engine is ‘exclusive to Stomp’ being the SR140C Z40 model producing 2hp more than any other YX140 engine on the market. If you look after the SR140C, it will prove a very reliable and affordable engine to run.
The chassis is a lightweight single backbone frame with cradle to keep the bikes mass down. This makes it faster and nimbler than many other brands focusing on MX looks at the cost of performance. The suspension is simple yet effective with plenty of travel. There’s even scope to upgrade the rear shock should you feel the need to start hitting some heavier jumps. The USD Forks and triple clamps complete the look while based on your personal preference the bike is available with two wheel options, 14/12 or 17/14 (big wheel).
The Z3-140 follows the trend for larger Pit Bikes, more space on the bike, yet still a lot of fun to throw around. Aggressive visual cues, clean lines and highly distinctive factory graphics complete a well-balanced looking bike that’s tasteful yet means business.
Warranty
6 months, parts only
Engine
YX140 with Z40 race cam, oil cooled
Valves
SOHC, 2 valve
Engine Displacement
140cc
Bore x Stoke
56 x 57mm
Compression Ratio
9.8:1
Fuel System
Carburettor 26mm Nibbi
Max Power
8.2 kw @ 8000 RPM
Max Torque
10.2 N·m @ 7500 RPM
Clutch
Wet, 5 disc
Ignition System
CDI
Starting System
Kick start
Transmission
Manual four speed with N-1-2-3-4
Final Drive
420 chain
Frame Design
Light-weight steel spine frame
Rear Subframe Design
CRF70 subframe
Swing Arm
Steel 430mm
Footpegs
Upgraded PRO Footpegs
Handlebar
Light weight steel
Front Suspension
USD 735mm (non-adjustable) forks
Rear Suspension
290mm piggy back (adjustable pre-load shock)
Front Rim
Steel rims with SDG hubs 14″
Rear Rim
Steel Rims With SDG Hubs 12″
Rim Lock
Rear
Front Tyres
60/100-14
Rear Tyres
80/100-12
Front Brake
Hydraulic brake 210 wavey disc
Rear Brake
Hydraulic brake 180 wavey disc
Wheelbase
1240mm
Ground Clearance
280mm
Seat Height
820mm
Dry Weight
71kg
Fuel Capacity
5.5 litres
Wheel Size
14/12
Packing Size
1560 x 380 x 735mm