STOMP

Z3 140

BIG WHEEL


STOMP Z3 140 

17/14 wheels

£1199 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 (12/14) for those more into tight track who need that extra manoeuvrability.

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 TIG 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 290mm 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


14/17 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

WAVEY Discs

Steel Braided Hose Lines