There is an updated tech bulletin for Mini and Micro. No major changes just clarifies wording. Download it from the Rules page or 2017 Challenge of the Americas Technical Regulations (Mini/Micro MAX)
Category Archives: Rotax Tech Bulletin
United States Rotax MAX Challenge Bulletin
Re: Rotax Mini MAX Squish Change
As you may know, we at the MAXSpeed Group are always trying to listen to our customers and some have been unhappy with the current Rotax Mini MAX regulation in regards to the minimum squish gap. In trying to make this class as level playing field as possible, we have come to the conclusion with the help of our customers that the performance of the package has declined.
Our intentions are high and with current tests we know we will be able to provide all Rotax Mini MAX competitors and their supporting teams with a solid baseline coming with the new EVO products. However, the first races of the season would suffer if we were to stay unchanged; therefore, after some careful and data-filled testing at the Homestead Karting facility this past weekend, we have come to the conclusion that the current 2.8mm squish setup is not suitable. MAXSpeed Group has decided to lower the minimum squish to 2.4mm, as this will increase the level of performance to a level we are happy with for winter racing at both the annual Rotax Challenge of the Americas (COTA) and Florida Winter Tour (FWT). Continue reading
12-Month Warranty Campaign
MAXSpeed Group, the United States distributor for Rotax MAX, Mojo and XPS products would like to announce a 12-month Warranty Campaign in conjunction with BRP-Powertrain effective from September 1, 2014 until the end of the calendar year.All Rotax MAX Engines (DD2, Senior, Junior, Mini and Micro) sold between the dates of September 1, 2014 and December 31, 2014 will automatically receive 12 months worth of warranty, rather than the normal six-month time frame. Offering an extended warranty such as this boasts BRP-Powertrain’s commitment and efforts in providing the best and most reliable engine package in the karting market.
All engines sold by MAXSpeed Group to their service centers and dealer network will be registered for this program utilizing the engine serial number. No registration by purchaser or end user will need to be completed.
The 12-Month Warranty Campaign is valid on new engines only.
For more information on this program, please contact your authorized Rotax MAX Service Center, Dealer or the MAXSpeed Group.
Supplemental Rules Update 1-22-14
Click to download PDF COTASuplimental1-22-14 copy
Rotax Challenge of the Americas
Supplemental Rules and Regulations
The Micro Max exhaust pipe is to be installed following the description below:
a) No modification of any kind is allowed to the exhaust socket or exhaust pipe Continue reading
USMRC Tech Bulletin
USMRC Tech Bulletin 021010
RMC REGULATIONS 2010 BULLETIN 1 (2010.01.27)
Rotax has released an update regarding the minimum length of the Rotax FR and DD2 spark plug wire. The bulletin is available on the USRMC website.
– Minimum length of ignition wire (high tension wire) is 210 mm from outlet of cable at ignition coil to outlet of cable at spark plug connector ( = the visible length of wire)
– Ignition coil must be in working condition (to be tested in case of doubt)
National Tech Director
United States Rotax Max Challenge