Shin guards that extend over the knee (Dirt Bike, Hockey type shinguards under their snowpants)
Absolutely no orange allowed on the snowmobile (orange only on the driver)
Brake on the snowmobile must be functional
Non-OEM or modified bumpers must be padded
Skis must have ski loops
Tether switch on the snowmobile must be functional and connected to the driver when on the snowmobile
Taillight must be illuminated at all times when on the track. This is due to if the engine stalls, the taillight goes out. This rule requires a secondary battery operated taillight to be added. Most everybody uses a simple bicycle taillight for this purpose.
It will also be necessary (but not technically required) that you are using studs and carbides. We race on glare ice and traction is VERY important.
ALL STOCK 120 RACERS** An ISR LEGAL REV LIMITER IS REQUIRED. For the 2017 race season. The ISR REQUIRES a Rev Limiter in all 120 stock class racing. This rule was put into place to equalize the engines RPM's between brands. 6850 RPM will be the limit setting. This was a long time request by many of the 120 racing groups and was a combined effort with the manufactures and the ISR in order to create a fair playing field for all racers. The Rev Limiter will be powered by a 9 volt battery and a simple 3 wire hook up. These can be purchased at recmotor.com
OPTIONAL SAFETY GEAR includes Elbow pads, Motocross type neck support (for faster classes)
**If you are planning on competing, even as a trial run, ISR requires that you have an ISR License.
NO RACING WITHOUT IT
Get one via the link on the main page of the ISR website