Welcome to DMR

GP Sport GP Sport R  GP Racing F1

GP Racing F2 GP Sport Junior GP Sport Junior R

www.gm-phantom.com 

DMR is the sole UK and Ireland importer of the GM Phantom, OR Engines and KO parts and accessories.  Further details can be found by clicking on the links on this page.  DMR is also the UK importer for Lisci Racing Parts, SPS Specialist Race Parts, GPCrono data logging equipment and an authorised distributor of Bizeta, Blata, Dellorto, Evolution Engineering, PMT Tyres and Polini parts.  DMR deals in high end specification parts and employs advanced techniques on engine re-building and open class engine tuning.  

The GM Phantom Minimoto comes in a variety of chassis and engine options but most notably the chassis is available in either dual or mono swingarm versions.  The Phantoms offer many advanced engineering solutions not seen on other pocketbikes.  The chassis has multi adjustable front and rear geometry and quick release wheel options available.  The Phantoms are unique in the world of pocket bikes. 

GP Racing F2 Monoarm 2008 Team DMR GP Racing Dual Swingarm

Blata Ultima W40 & W50

Blata Ultima W40 Blata Ultima W50  Blata/Formula Hydraulic Brake W40 & W50

Performance Engine & Dyno Tuning

DMR has been profesionally tuning engines and preparing bikes for both trackday and racing use for 4 years with many race wins in all classes to our credit in both the UK and overseas.  We offer the full range of engine building and tuning services from straight forward re-builds to full on 50cc open class race tuning on the entire range of bikes and engines.  DMR has a fully equipped workshop with a lathe, milling machine, foredom porting tools, crankshaft re-building and truing jigs, a Dynapro S32 Chassis Dyno and uses both TSR and Engmod2T 2 stroke engine tuning and simulation software.  DMR has a dyno chassis available for both UK and overseas customers requiring engine tuning.  There are some dyno graphs displayed on the "Engine Tuning" and "Squish" pages of this site.

Barrel Skimming Crankshaft Assembly Ported and Skimmed 50cc top end Skimmed Cylinder Deck 

 

The “OR” H20 engine has many performance enhancing features over the alternative pocketbike engines.  The inlet follows a shorter and straighter path in order to move the carburettor closer to the pipe signal.  The increased width is there to accomodate the KO V Force reed cage as an optional bolt on upgrade.  The race crankshaft is machined as a single piece web and fitted with tungsten and bagelite plugs for balance and inertia purposes.  A range of pipe options are available for preferred power delivery purposes. 

 

www.ormotori.com

 

OR 40cc H20 OR Crankcases OR Crankshaft 39.2 & 39.8mm OR 40/50cc Cylinder

 

Below are a few samples of the KO, Lisci and SPS race accessories DMR offers.  DMR offers the widest range of minimoto race products in the UK.  There are many items, unique to DMR available, including the adjustable main jet for PHBG carburettors, GPCrono RPM/Temp/Time and Data Logger systems, water cooled crankcases for the OR and BZM engines machined from billet by SPS and the 28mm fork conversion for DM and GRC bikes from Lisci Racing.

 

PHBG Carb Transformation Kit SPS Watercooled Crankcases (OR/BZM) SPS Watercooled Crankcses (OR/BZM) 

SPS Racing Engine Lisci Clutch Housing GPCrono GP2 GPCrono GP5 Rev Counter/Temp Display/Hour Meter

DMR is based in Hull, East Yorkshire, UK.  Contact details are shown at the foot of this page.  Enjoy the site. (Page updated 08/03/2010)