Description
Description
The Z3-160 sits towards the top of the pack as one of the more powerful pit bikes in our range. Packing serious performance from its ZS155 4-stroke engine and running on big 17/14 wheels, this is a bike built for experienced riders looking for maximum performance from a compact pit bike chassis.
Back in 2007, Stomp took the legendary YX140 engine and squeezed it into a pit bike named the SuperStomp 140. That combination of lightweight chassis and big performance helped put Stomp firmly on the map. The Z3-160 carries that same philosophy forward: lots of power, minimal unnecessary weight and maximum fun.
For 2026, the Z3-160 receives one of its biggest component and styling updates yet.
Up front, the bike now features Series 6 alloy variable-diameter handlebars together with new grips and new black upper and lower clamps. The result is a more premium cockpit with the aggressive factory look the Z3 deserves, finished with a new Stomp-logo bar pad cover.
A new lower-noise Power bomb exhaust system has also been introduced, complete with a Stomp identification plate, retaining the character of the big ZS155 engine while reducing unnecessary noise.
Elsewhere, the Z3-160 gains an updated rear brake, titanium-colour front brake, titanium-colour wheel hubs, black spokes and nipples and a titanium-finish engine bottom support. Together, these changes give the latest Z3 a much more cohesive factory finish.
Underneath the updates remains the lightweight single-backbone frame and cradle that makes the Z3 so nimble. Rather than chasing full-size MX dimensions and unnecessary weight, the Z3-160 stays true to what a serious pit bike should be: compact, responsive and ridiculously entertaining.
USD forks, a preload-adjustable rear shock and the larger 17/14 wheel combination complete a package designed to make full use of the ZS155 engine.
Aggressive visual cues, clean lines, distinctive Stomp graphics and nearly two decades of pit bike development come together in the latest Z3-160.
Turn up the volume and smell the petrol. BRAAAP!
| Specification | Details |
|---|---|
| Distributor | Stomp Distribution Ltd |
| Manufacturer | Stomp |
| Warranty | 6 months, parts only |
| Engine | ZS155, 4-stroke, oil cooled |
| Valves | SOHC, 2 valve |
| Engine Displacement | 155.5cc |
| Bore x Stroke | 60 x 55mm |
| Compression Ratio | 11.5:1 |
| Fuel System | 26mm Carburettor |
| Max Power | 10.5kW @ 9,500 RPM |
| Max Torque | 11.5 N·m @ 8,000 RPM |
| Clutch | Wet, 3 disc |
| Ignition System | CDI |
| Starting System | Kick start |
| Transmission | Manual 4-speed, N-1-2-3-4 |
| Final Drive | 420 chain |
| Frame Design | Lightweight steel spine frame |
| Rear Subframe Design | CRF70 subframe |
| Swing Arm | Steel, 430mm |
| Footpegs | Upgraded PRO footpegs |
| Handlebar | New alloy fatbar |
| Exhaust | 32mm Big Bore |
| Muffler | Power bomb |
| Front Suspension | USD 735mm non-adjustable forks |
| Rear Suspension | 290mm piggyback shock, adjustable preload |
| Front Rim | Steel rim with SDG hub, 17" |
| Rear Rim | Steel rim with SDG hub, 14" |
| Rim Lock | Rear |
| Front Tyre | 70/100-17 |
| Rear Tyre | 90/100-14 |
| Front Brake | Hydraulic brake, 210mm wavey disc |
| Rear Brake | Hydraulic brake, 180mm wavey disc |
| Wheelbase | 1,240mm |
| Ground Clearance | 320mm |
| Seat Height | 865mm |
| Dry Weight | 74kg |
| Fuel Capacity | 5.5 litres |
| Wheel Size | 17/14 |
| Packing Size | 1,560 x 380 x 735mm |
Shipping
Shipping
This is an item we stock in Stores and warehouses and will be available to collect the same day. If delivery is selected the cut off for same day dispatch is 11AM. Delivery options are available from 24 hours to 5 days.

Technical SPECIFICATIONS
ENGINE
Zhongshen 155cc
GEARBOX
Start-in-gear, all-up 4 speed
HP
17hp at rear wheel
CARB
26mm race carb with double foam filter
ENGINE TYPE
Petrol Engine
FINISH
Aluminium shot blast finished cases with Stomp logo
COOLING
Race oil cooler with braided steel hoses
FRAME
SDG2 heavy duty cradle frame for ultimate stiffness and control
SUBFRAME
Removable rear subframe & bolt on engine hangers
SWING ARM
Revised light-weight tig welded 430mm swing arm
FORKS
Entended 735mm cnc machined usd oil filled forks
RIM SIZE
F: 17 inch - R: 14 inch
CLAMPS
Drop forged black anodised triple clamps (yokes)
SHOCKS
Nitrogen filled 290mm piggy back shock with steel bushes
WHEELS
17/14 sdg wheels with steel rims for strength
TYRES
Superb durable and tough innova pattern mx tyres
CYLINDERS
Improved and revised light-weight brake master cylinders and calipers
ROTORS
Vented light-weight rotors
ENGINE
Zhongshen 155cc
GEARBOX
Start-in-gear, all-up 4 speed
HP
17hp at rear wheel
CARB
26mm race carb with double foam filter
ENGINE TYPE
Petrol Engine
FINISH
Aluminium shot blast finished cases with Stomp logo
COOLING
Race oil cooler with braided steel hoses
FRAME
SDG2 heavy duty cradle frame for ultimate stiffness and control
SUBFRAME
Removable rear subframe & bolt on engine hangers
SWING ARM
Revised light-weight tig welded 430mm swing arm
FORKS
Entended 735mm cnc machined usd oil filled forks
RIM SIZE
F: 17 inch - R: 14 inch
CLAMPS
Drop forged black anodised triple clamps (yokes)
SHOCKS
Nitrogen filled 290mm piggy back shock with steel bushes
WHEELS
17/14 sdg wheels with steel rims for strength
TYRES
Superb durable and tough innova pattern mx tyres
CYLINDERS
Improved and revised light-weight brake master cylinders and calipers
ROTORS
Vented light-weight rotors