Go Off Road Barnsley
STOMP Z3R-140 (RACE SPEC)
STOMP Z3R-140 (RACE SPEC)
Part Number:
- 6 MONTHS WARRANTY INCLUDED
- OPTIONAL BUILD SERVICE AVAILABLE
- FLEXIBLE FINANCE OPTIONS AVAILABLE
14 HP
55 MPH
MANUAL
Description
Description
Back in 2007, Stomp took the legendary YX140 engine and squeezed it into a pit bike named the SuperStomp 140. That combination of a lightweight aftermarket chassis and a seriously lively engine helped put Stomp firmly on the map.
The Z3R-140 continues that legacy. At its heart is the immense 4-stroke, single-cylinder YX140, using Stomp's SR140C Z40 specification. But the "R" in Z3R stands for Race, and this bike has always been about much more than just its engine.
The lightweight single-backbone chassis keeps mass down and agility high. An alloy swingarm, nitrogen-filled fully adjustable DNM rear shock and fully adjustable SP 735 USD forks give the rider the ability to fine-tune the bike for different tracks, terrain and rider weights.
For 2026, we've pushed the Z3R package even further.
The cockpit now features Series 6 alloy variable-diameter handlebars, new grips, new black upper and lower clamps and a Stomp-logo bar pad cover. It's a substantial visual upgrade, but one designed around the controls and contact points that matter when you're riding hard.
The exhaust system has also been updated with a new lower-noise Power bomb muffler.
Further upgrades include an updated rear brake, titanium-colour front brake, titanium-colour wheel hubs, black spokes and nipples and a titanium-finish engine bottom support, bringing a sharper and more cohesive factory finish across the whole bike.
Underneath those updates is still the Z3R riders know: a lightweight, compact race-focused pit bike with quality adjustable suspension and the legendary YX140 providing the power.
The Z3R gives you more room than a traditional small-wheel pit bike while remaining light enough to throw around. Aggressive styling, distinctive factory graphics and carefully selected race components complete the package.
This is the flagship 140 in the Stomp range — the result of almost two decades of pit bike development, racing and refinement.
Stomp on the opposition. Turn up the volume!
| Distributor |
Stomp Distribution LTD |
|---|---|
| Manufacturer |
Stomp |
| Model |
Z3R-140 |
| Warranty |
6 months, parts only |
| Engine |
YX140 with Z40 race cam, 4-stroke, oil cooled |
| Valves |
SOHC, 2 valve |
| Engine Displacement |
140cc |
| Bore x Stoke |
56 x 57mm |
| Compression Ratio |
9.8:1 |
| Fuel System |
Carburettor 26mm |
| 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 |
Alloy 410mm |
| Footpegs |
Upgraded PRO Footpegs |
| Handlebar |
NEW alloy fatbar |
| Exhaust |
Mandrill bent big bore 32mm OD race pipe |
| Muffler |
Power Bomb |
| Front Suspension |
USD SP 735mm (fully adjustable) forks |
| Rear Suspension |
DNM 290mm Piggy Back nitrogen filled (adjustable) |
| Front Rim |
Steel rims with SDG hubs 14" |
| Rear Rim |
Steel Rims With SDG Hubs 12" |
| Rim Lock |
Rear |
| Front Tyres |
Kenda 60/100-14 |
| Rear Tyres |
Kenda 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 |
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.
Dominating the Track with Style
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HEART OF A PIT BIKE
STOMP Racing Pit Bikes represent the epitome of adrenaline-fueled off-road adventures. Designed with precision engineering and cutting-edge technology, these bikes offer enthusiasts an unparalleled experience in the world of pit biking. Whether you're a seasoned rider or a novice seeking thrills, STOMP Racing Pit Bikes deliver top-notch performance, durability, and style. From conquering rugged terrain to dominating the track, these machines are built to exceed expectations and ignite your passion for two-wheeled excitement.
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PURE COMFORT
Stomp, one of the most renowned pit bike brands in the UK. Why? because they care about quality and have a strong network of dealers that look after the product! The Stomp suspension makes the ride purely awesome, wether you are riding trails or hitting small jumps the stomp is for you!
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QUIET, BUT NOT TOO QUIET
How quiet is too quiet? A petrol pit bike should make noise, that is the nature of the product. However we all know that not everyone loves the sound and smell of pit bikes. That is why Stomp have spent years creating a range of exhausts that maintain performance whilst keeping the members of public in mind!
Technical SPECIFICATIONS
ENGINE
Stomp Racing SR140C Z40 race cam
GEARBOX
Start-in-gear, all-up 4 speed gearbox
HORSEPOWER
14hp at rear wheel
CARB
26mm race carb with double foam filter
CASES
Aluminium shot blast finished cases with Stomp logo
COOLER
CNC 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
BASH PLATE
Alloy sump guard / bash plate
SWINGARM
410mm alloy swing arm
FORKS
SP 735mm cnc machined usd fully adjustable oil filled forks
CLAMPS
Drop forged black anodised triple clamps (yokes)
SHOCK
DNM nitrogen filled 290mm piggy back shock
WHEELS
14/12 sdg with steel rims for strength
RIM LOCK
In rear wheel
TYRES
Kenda
CYLINDERS AND CALIPERS
Improved and revised light-weight brake master
ROTORS
Vented light-weight rotors
FEATURES
Brake snake to protect the rear brake pedal
MUFFLER
Alloy oval exhaust muffler
RACE PIPE
Mandrill bent big bore 32mm OD race pipe
FEATURES
Features full length alloy heat shield for style and protection
BARS
Pro-taper style minibike bars
GRIPS
Renthal style soft rubber grips
LEVERS
Forged alloy clutch & brake levers
SIDE CASES
Stomp logo cnc machined engine side cases
CHAIN
420 KMC chain with engraved alloy/nylon chain guide
REAR SPROCKET
420 41t lightweight durable
FRONT SPROCKET
420 16t
GEAR SELECTOR
Fold back gear selector
FOOTPEGS
NEW upgraded PRO
FUEL TANK
NEW reinforced poly resin 5.5 ltr fuel tank with alloy cnc filler cap
SEAT
NEW revised firmer with Stomp logo
PLASTICS
NEW Detroit hi impact polypropylene
BOARD
Wrap around crf number board with front brake pipe tidy
GRAPHICS
New Stomp race graphics kit with Stomp race sponsor’s logos
SEAT HEIGHT
82cm
WEIGHT
71kg
WEIGHT LIMIT
15 stone
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