"Rotax Max is more than a karting class based around a spec engine, it is the embodiment of a return to the art of racing.  In a sport that has always been a combination of science and art, these sealed engines have minimized the role of science by combining maximum performance with 50 hours of running time backed by a 6 month warranty."  For most racers, that means it will be about 2 or 3 seasons before their Rotax engine will need a major rebuild.  Compare that to some other classes, where to be competitive, the engine needs to be rebuilt every 10 races or so translating into 2 times per season.  With that kind of savings, the Rotax is the most cost-effective engine in kart racing.  "Support this affordable technology with a worldwide program of regional, national and world championships and you have the Rotax Max Challenge.

With 5 classes catering to every racer from 8 to 88, there's something for the whole family."

*Mini Max: age 8 - 12   * Junior 1: age 13-14   *Junior 2: age 15 - 17
*International: age 16 +"   *Masters: older senior drivers

To learn more about the national and international programs go to;
http://www.rmaxchallenge.com


It should also be noted that the Rotax FR125 is the ORIGINAL TAG or touch and go engine, meaning that it has an on-board electric starter.  Other kart engine companies have copied the concept  and have come up with their own engines, and a class has even been created for these engines, including the Rotax.. Guess what?  The Rotax is very competitive, popular, and has proven to be very reliable in that class too.   This gives the Rotax FR125 engine added value in that it can compete in the Rotax Max Program and the TAG Program.

Since the Rotax engines have on-board electric start, there is no need for push starting, rope tugging or electric starter lugging.  That allows the karting enthusiast to attend events with a minimal pit crew.






Then there is the Rotax RM1.
This is indeed the most innovative racing kart on the market.  Rotax came up with their own unique chassis design.  They then came up with most unique kart engine and drive train.  The engine, clutch and transmission are one piece.  That in itself is not unique, since a system like that has been standard issue on motorcycles for years.  What is most unique is that the kart's axle protrudes through the gearbox eliminating the troublesome chain drive.

The features don't stop there.  This kart is equipped with a 125cc water-cooled, power valve equipped, two stroke engine.  The engine puts out close to 30 bhp.  The powerful engine is equipped with a 2-speed transmission to provide outstanding performance at both the low end and top end. ...and that's not all, this machine even runs in reverse at the flick of a switch!  Like the FR125, the RM1 is equipped with on-board electric start, making this the most user-friendly, and fun-to-drive kart on the market.

The RM1 not only goes fast, and is user friendly, it is also has unique safety features.  Of course it is equipped with four-wheel hydraulic disc brakes.  It also features an energy absorbing front spoiler/bumper that also provides great aero-dynamic characteristics.  At the rear is a full coverage, energy absorbing rear bumper as well. 

With all of these features, the RM1 can easily be called the most innovative, most user friendly, and more importantly, most fun machine in the sport !

 Prices
current as of June 2005

Rotax Max 125cc Sr. Package, includes pipe, clutch, battery, wiring harness, radiator, carburetor, airbox and fiter.	$2,695.00 plus freight
Rotax Max 125cc Jr. Package, includes pipe, clutch, battery, wiring harness, radiator, carburetor, airbox and filter,	$2,595.00 plus freight
Rotax Mini-Max Package, includes restricted cylinder, exhaust, clutch, battery, wiring harness, radiator, carburetor, airbox and filter.	$2,595.00 plus freight
RM 1 Kart, 2-speed shifter with reverse, gear drive system (the troublesome chain has been eliminated)	$7,995.00 plus freight

Commonly Requested Parts and Accessories
Because it is a machine, the Rotax engine does require routine maintenance, and that means some parts will be needed.  Here's a list of the most common ones.  Of course, Bergfelt Racing Enterprises handles all of the parts for Rotax kart engines.  We have listed the most frequently asked for items here.

250231	gasket for power valve	2.50
260723	bellow for power valve	17.77
239043	hose spring for bellow	3.49
239942	compression spring for exhaust valve, These can get away from you and get                                                                     lost when cleaning the power valve.	3.42
239030	spring clip for power vavle	6.55
233850	bushing for use with 11 tooth clutch sprocket	3.87
932028	needle bearing for 12-14 tooth sprockets	13.29
236418	11 tooth sprocket	38.04
236412	12 tooth sprocket	38.04
236410	13 tooth sprocket	38.04
236411	14 tooth sprocket	38.04
242920	big nut to hold sprocket	7.18
659152	clutch drum     Some Rotax guys have one for each sprocket to make gear                           changes easier.	56.20
232365	needle pin to retain sprocket	1.52
265510	battery     You really should have a spare, especially for full weekends.	42.75
265580	starter button	21.45
297837	ND Irridium 27 spark plug, Belive it or not, this plug does make a  difference.	17.95
274160	fuel filter	6.51
261550	main jet cup	1.64
261990	160 main jet	5.22
261991	162 main jet	5.22
281826	165 main jet	5.22
261992	168 main jet	5.22
261820	170 main jet	5.22
261821	172 main jet	5.22
261822	175 main jet	5.22
261823	178 main jet	5.22
261824	180 main jet	5.22
261993	182 main jet	5.22
261825	185 main jet	5.22
296165	carburetor gasket kit	19.80
245630	clip for needle jet (metering rod)	1.21
225050	air filter element	10.26
297980	isolating matt for muffler	8.96
277380	fixation tool for crankshaft (piston stop)	30.60
276015	clutch puller	57.93
277362	tool for holding clutch drum while changing sprockets	61.88

Bergfelt Racing Enterprises  is the only shop in Pennsylvania certified to provide Factory Parts and Service for Rotax Kart Engines.  We are also authorized to seal engines and update engine passports.