STOMP Z2 140R Z40 

 STOMP Z2 140R z40 Race Report 

Only A Little "R" but a BIG difference in Specification

"STOMP z140R 2016 Featuring the Exclusive z40 race camshaft factory equipped engine, Beefed up Crank Cases and Needle Roller Gearbox Bearings. The Z40 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 2016 Z2R-140 has a completely BRAND-NEW chassis moving from a single spine to a twin beam construction. This allows for increased rigidity and thus stability at high speed, but more importantly allows space for the extra-long rear shock & the subsequent huge swing arm travel. Stomp learned in 2014 that in order to match & then beat Bucci lap times, they needed more suspension travel, and the all-new chassis design is a direct result of that experience.

The Z2R-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 SR140C, 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.
This is of course the ‘R’ model which means you get fully adjustable suspension & quality MX spec tyres making it ready to race out of the crate.



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


Exclusive Race Engineered Race Geometry Frames
New HiTor SuperSwing Alloy Swingarm System
Swingarms includes provision for 
High Torsional strength wheel spacers
and SuperDry Sealed Wheel bearings
High Impact Lightweight Sumpguard
Race Engineered Rear Subframe 


SPK Fully Adjustable Titanium Finished Anodise Forks
Drop Forged Titanium Anodised Triple Clamps
 DNM Long Travel Rear Shock
AlloyRear Swingarm 410mm
SuperSwing Frames/Swingarms to take 17/14 wheel upgrades
Replaceable Steel SuperShock Shock pivot bearings

 Wheels and Tyres 

12" rear 14" front KENDA MX Tyres
SuperStrong and Light Steel Rims
SDG pattern SuperStrong hubs
Recessed & Sealed SuperDry Long Life Wheel Bearings


SuperStop Wavey Discs 210mm front and 190mm rear
Single pot Front and Single Pot Rear wheel cylinder
Steel Braided Hose Lines
EBC pattern pads front and rear


KMC 420 pitch Chain
41 tooth rear sprocket
15t front sprocket
Wrap around SuperSlide Swingarm Chain Sliders
New SuperGuard Rear Shock Mud Deflectors

 Bars & Controls 

Titanium Alloy Minibike Pro Taper style Bars
Foldback Levers Adjustable Reach
Soft Grey SuperGrip Bar grips
Foldback gear Shifter
Heavy Duty 16mm Kickstart Shaft

"Price vs spec? Stomps predecessor, the Z140-R was the best-selling race ready 
pit bike in the UK for 2 years. The Z2R-140 now takes Stomps winning 
formula & punts into the stratosphere, pretty much annihilating anything else 
on the market in the same price bracket. As per the predecessor its race ready 
out of the crate featuring fully adjustable SPK forks & DNM (Taiwanese) rear shock. 
Kenda Carlsbad MX spec tyres keep you in the ruts whilst other upgrades to 
note are a full set of Factory Takegawa graphics. The 
2015 Z2R-140 was born out of racing Bucci’s in the nationals and the results 
on the track tell the full story. The Z2R-140 will give more bang for 
your buck than any other race-ready machine and if you are thinking about 
taking it straight to the track, look no further & buy the replica of 
Troy Becks Podium winning machine right here."

Stomp z140 CRF70

Maximum Fun Is Essential