Rocker Cover Racing!
A brief introduction...
Go out to the garage, the shed, or maybe the swap meet and pick up an extra rocker cover, it's time to get building your racer for IMM 2025! Each year at IMM, we gather together to have some gravity powered fun and see who has the fastest rocker cover racer in the world. This year we will again have 3 classes of racing (kids, modified, and masters) along with some open track time for testing, and some time for "Just for Fun", "Grudge Racing" or "Call-outs" so you can work on your racer and race whoever you want for the bragging rights.
There will be awards for the class winners and the overall winner.
Below is the schedule and the rules:
Friday
1300-1500: Rocker Cover Racing - Open Track Practice / Test and Tune
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1500-1600: Rocker Cover Racing - Open to All "Just for Fun" / "Grudge" Racing
Saturday
1300-1400: Rocker Cover Racing - Open Track Practice / Test and Tune
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1400-1600: Rocker Cover Racing - Heats - Kids Class (12 and Under, Kids Class Rules)
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1600-1800: Rocker Cover Racing - Heats - Modified Class
Sunday
1300-1400: Rocker Cover Racing - Finals - Kids Class
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1400-1500: Rocker Cover Racing - Finals - Modified Class
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1500-1600: Rocker Cover Racing - Finals - Master Class and Overall Winner
Rocker Cover Racing IMM 2025 Rules
Masters Class Racer
This class is for everyone who has finished 1st- 3rd at any IMM since 2014. It is for the all out honour of having the fastest international Mini rocker cover, that isn’t attached to a Mini engine. At each IMM, the 1st- 3rd place finishers of the Modified Class will move to the Masters Class for the following IMM. Once you are in the Master's Class, that is where you stay for all future races, even if you build a new racer. At each IMM following the class finals, the first place winner of the Masters Class and Modified Class will compete for the IMM overall fastest rocker cover. The rules are the same as the Modified Class.
Modified Class Racer
This class is for all ages, but it can be serious, so kids under 12 are advised to build a racer and compete in the Kids Class. Creativity for speed and design is welcomed, but rules are rules. The following rules are the requirements that are checked at pre-race inspection. Other than these rules, it’s open to your creativity and abilities. Those that finish in the top 3 will then move up to the Masters Class at the next IMM they race at. They will then be in that class forever, even if they build a new racer.
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1. All ages. Kids to great great grandparents.
2. Body: Begin with a stock or aftermarket A series Mini rocker cover. Modifying and decorating is open and encouraged as long as it is still recognisable as a Mini rocker cover.
3. Wheels: 4 wheels are required, and all 4 must be in contact with the track during the race unless the racer catches air due to the track conditions. Wheel design and material is open. Maximum wheel diameter is 5 inches.
4. Wheel bearings: Open. Lubricants are open.
5. Axles: Open.
6. Gravity is the only power source. There can not be anything mechanical that would affect the speed.
7. Maximum dimensions and weight:
Length – 14 inches (35.56 cm)
Width – 8 inches (20.32 cm)
Height – 8 inches (20.32 cm)
Weight – 8 pounds (3.628 kg)
Kids Class Racer
This class is designed for kids to learn how to build a racer, be creative, and have fun racing other kids. The rules were created to keep all of the racers closely competitive while allowing the kids to be the builders with minimal adult help. The following rules are the requirements that are checked at pre-race inspection. If the racer looks to have too much adult involvement or does not meet the following rules, it is up to the judges to move the racer to the Modified Class for consideration. Note, the rules are as basic as putting a rocker cover on top of a very small skateboard. The extent of the rules is to keep it that basic and equal.
1. Age: 12 and under at the time of the race.
2. Tools: No tools beyond standard hand tools, saws, and drills can be used. No welding or machining.
3. Body: Begin with a stock type steel A series Mini rocker cover. Modifying and decorating is open and encouraged as long as it is still recognizable as a Mini rocker cover.
4. Wheels: 4 stock skateboard or roller skate wheels made of urethane or rubber. Maximum diameter 2 ½” (65 mm). Minimum width 1.18” (30 mm). The wheels can not be modified or worn to reduce the width touching the track surface. All 4 wheels must touch the track during the race unless the racer catches air due to the track conditions.
5. Wheel bearings: Steel ball bearings only. If the bearings are in question, be prepared to remove the dust covers to show them for inspection. Lubricants are open.
6. Axles: Stock skateboard or roller skate trucks. The only modification allowed would be to do what is needed to lock the truck from moving, if so desired.
7. Gravity is the only power source. There can not be anything mechanical that would affect the speed.
8. Maximum dimensions and weight:
Length – 14 inches (35.56 cm)
Width – 8 inches (20.32 cm)
Height – 8 inches (20.32 cm)
Weight – 7 pounds (3.175 kg)
Good Luck!