STOMP
Z3 140
SMALL WHEEL
STOMP Z3 140
12/14 Wheels
£1099 Including Mainland UK Delivery
STOMP Z3 140 Z-40 Race Report
"STOMP Z3 140 2025 Featuring the Exclusive Z-40 race camshaft factory equipped engine, Beefed up Crank Cases and Needle Roller Gearbox Bearings. The Z-40 Race Camshaft is only fitted to Stomp and WPB engined bikes, no other UK Pitbike engine manufacturer fits this legendary camshaft to their engines and the 17Hp at rear wheel in Stock form is plenty to scare the Pants off the unsuspecting! "
The 2025 Z3-140 has been Upgraded to Now Include Polished Allow Hubs and
HSK Racing Brakes front and rear and Pro Footpegs. The New Detroit Plastics add something new
to the Race scene and are Unique to Stomp
The Z3-140 still boasts the ‘exclusive to Stomp’ SR140C/Z-40 cam engine. Stomp buy in the YX140 and then fettle the engine with stiffened valve springs & a high lift race cam (known as the z-40 cam). The result is 2 HP more than any other YX140 engine on the market. It might not be quite Zhongshen 155 territory, but its most of the way there and significantly cheaper to install than the Z155 which would see retail prices creeping over the £1200 mark. If you look after the Stomp 140 Z-40, it will prove a very reliable and cheap engine to run.
Stomp still retain the big wheel version (17/14) for those more into field hacking who need that extra stability in muddy conditions.
Z-40 Race Camshaft
Factory Fitted and Race Tuned for Extra Brake Horse Power
ENGINE
17hp Dyno & Race Tested Latest Generation Engine
26mm Race Carb with 2 stage race foam filter
z40 Factory Fitted Race Camshaft giving Extra 2hp
N1234 all up gearbox
High Capacity Race CNC oil cooler
Race CDI
High Capacity Race Ignition coil
CONTROLS
Minibike Pro Taper style Bars
Forged Alloy Levers
Soft Grey SuperGrip Bar grips
Foldback gear Shifter
Heavy Duty 16mm Kickstart Shaft
Pro Footpegs
FRAME
Exclusive Race Engineered Race Geometry Frames
New HiTor SuperSwing Alloy Swingarm System
Swingarms includes provision for
High Torsional strength wheel spacers
SuperDry Sealed Wheel bearings
High Impact Lightweight Sumpguard
Race Engineered Rear Subframe
SUSPENSION
Titanium Finished Anodise 735mm Forks
Drop Forged Titanium Anodised Triple Clamps
Long Travel Rear Shock
Rear Swingarm 410mm
SuperSwing Frames Swingarms to take 17/14 wheel upgrades
Replaceable Steel SuperShock Shock pivot bearings
BARS
Titanium Alloy Minibike Pro Taper style Bars
Oversize Bar Pad with detachable cover
Optional Handguards available
EXHAUST
38mm Big Bore corrosion proofed pipe
38mm Straight through Oval End Can
Spark Arrester
Alloy Exhaust bracket
Optional 2WINS twin exhaust upgrade
WHEELS
12/14 Inch Wheels
Innova Pattern Tyres for an allround
Grip and Performance
Allround Sealed Bearings
Matt Black Powder coated Rims
DRIVE CHAIN
KMC 420 Chain
41T 16T
Sprockets
Hi Performance LockTab Rear Sprocket
Fully Sealed Hydraulic Disc Brakes Front and rear
High Performance Disc Pads
Round Vented Discs
Steel Braided Hose Lines
