WHY WE HAVE RULES and GUIDELINES

• So all cars attending a race event are basically the same for each class, thus creating a fair and more competitive event.
• To ensure that all cars are as safe as possible.
• Wheel base limits are set to provide stability. CARS HAVING TOO SHORT A WHEEL BASE are difficult to steer and control.  Maximum length limit is required for starting ramp setups.
• Axle width, max. 35-36" is a starting ramp issue, if your axles are too narrow then you car will be unstable (top heavy) Steering wire type (Aircraft only) is a safety issue, stronger and less prone to breaking or stretching.
• No PNEUMATIC WHEELS/TIRES... safety issue, as experience has found these wheels will permit cars to climb over curbs on road courses and create a unsafe condition. They are also a threat to safety as they may deflate suddenly causing loss of control.
• Full body requirement: All drivers have a tendency to want to put their feet down on the road to stop car should it lose control or at the finish line. A full body protects the legs of the driver.
• CSA approved bike helmet requirement: Use of motorcycle helmets, snowmobile helmets in the past has not worked out as these helmets often do not fit the driver properly and create a vision impairment issue.
• No metal body components: Metal although strong and impact resistant creates a safety issue for spectators, other drivers, and volunteers as it can cause serve injuries should the metal car impact.
• GUIDELINES.... are created for race directors and organizations so that the basic fundamentals of a race are always the same from community to community.
• FAIRNESS ..... SPORTSMANSHIP and SAFETY are all issues addressed by having set rules and guidelines for this sport. 
• WHEN CONSIDERING WHAT CLASS TO RUN WHETHER YOU BUILD A HOBBY STREET of PRO CLASS car, or obtain a Stock, Super Stock or Masters car, the overall cost of a HOME BUILT CAR can often exceed the cost of a new or used official derby kit car. 
• You can often find used derby cars at reasonable cost vs home building a car, as well a new official derby car kit or used car has a better re-sale value as they are not built to fit a specific childs needs. 
• ALL CARS MUST HAVE A MINIMUM 3" ROAD CLEARANCE - Measurement taken from lowest point on car. This rule exists in all classes, to ensure proper ramp starts and prevent sudden contact with ramps or road surfaces.

The rules shown in this booklet are meant to act as guidance for car construction and to ensure a fair and level playing field for all race families.

The rules for each racing division are such that they ensure that all cars are safe and built in a manner to provide uniformity and competitiveness in the division entered.

Recognized Racing Divisions

·        HOBBY STREET

·        CSBRA Pro (also known as Pro Street)

·        Stock

·        Super Stock

·        Masters ( Stick Built and Scottie Kits)

Racing Division Explanation

Hobby Street:  This division is considered the entry level and grass roots of the sport in Canadian soap box derby. The cars are designed by the individual and homebuilt following the specified rules and guidelines. This class also has the widest range of allowable wheel diameter types, 7” – 10” 
A Street Division cars must be home built and may not have raced or been built for another class such as Pro or Stick Masters.

WayCool Kit cars are the only “kit” recognized as a Hobby Street car.

CSBRA Pro (Pro Street): Created in 1990 as a homebuilt division, the CSBRA Pro class was created as a more competitive division in the homebuilt car classes. These cars are designed and built by the individual following the specified rules and guidelines for the division. 

NOTE: Retired Masters Stick Built cars modified to provide a lean forward racing position may be entered in to this division. Once entered as a Pro car NO Masters may return to the Masters Division. Wheels for this division may be 12” Official Steel or Z-Glass derby wheels

Stock: This division is an official Soap Box Derby class. All cars in this division must be AASBD Stock Kit cars. Rules for this division are governed by those of AASBD, with amendments made to accommodate the use of older none AASBD current cars. New Foils must be used on axles

Super Stock: This division is an official Soap Box Derby class. All cars in this division must be AASBD Super Stock Kit cars. Rules for this division are governed by those of AASBD, with amendments made to accommodate the use of older none AASBD current cars. New Foils must be used on axles. 

Masters: The Masters division is made up of 2 types of cars Stick Built and AASBD Scottie Kits. Lean forward Stick cars are also part of this division. Rules are per AASBD and those specified by the CSBRA for Sticks and older none conforming Scottie cars. Only Scottie kits are eligiable for the All American World Championships.
STOCK, SUPER STOCK and MASTERS CLASSES MUST FOLLOW THE CONSTRUCTION RULES AS PERSCRIBED BY ALL AMERICAN. IF THE ITEM IS NOT MENTIONED IN THE AASBD RULES FOR THE PARTICULAR CLASS OF CAR YOU HAVE IT MEANS ANY OTHER ITEM OR METHOD OF BUILDING YOUR CAR IS NOT ALLOWED!



HOBBY STREET HOME BUILT DERBY CAR

(DIVISION INCLUDES WAYCOOL KIT CARS)

NOTE: These rules are under review and may be subject to change.

Allowable wheel types:

1. Wheel diameter must not be less then 7” and not exceed 10”
2. Wheel must not be pneumatic (IE: air filled bicycle or wheelchair wheels)
3. Wheels must not have precision bearing sets, all bearings must be of type standard to the wheel
4. Car must have 2 wheels in front and two at the rear. All 4 wheels must be in contact with the track surface at all times.

Axles:

1. Axles must be solid material
2. Axles maybe made from square stock with spun spindles to accommodate wheels, or of round stock of such diameter to accommodate mounting of wheels used.
3. Axles must no rotate or contain an inserted sleeve which rotates.
4. All axles must be a minimum of  0.5 “ diameter and no more then 0.75” diameter at the spindle.
5. Axles must be affixed to the chassie by means of a kingpin bolt, ¼ x 3-1/4” minimum in the front and rear. Additional bolts may be used to affix rear axle to chassie.
6. Axles may not exceed 36” in length (measured from end to end)

Chassie (Floorboard):

1.       Chassie/floorboard must be constructed of wood

2.       Maybe made of plank (butcher block) or plywood

3.       Floorboard may not exceed 84” in length (Note: total allowable car length is 84” so ensure car is not longer then 84” with body mounted)

4.       Chassie/floorboard must be a minimum thickness of 1.5”  and no more then 2” thick.  (WayCool Kit cars excepted)

5.       If chassie/floorboard is constructed of laminated pieces of plywood or plank then NO nails or screws can be used to join the pieces. All pieces must be glued only.

6.       No steel may be added between chassie/floorboard laminations allowed.

Body:

1. Body maybe constructed of wood, or any non-metallic composite material.
2. Body framing components must be of wood or any non-metallic materials
3. A full body must cover drivers legs completely and prevent driver from slipping out of the car.
4. No windshields or clear body component maybe used in front of driver in an attempt to move air over driver as a windshield would.   
5. Body must not cover drivers head (open cockpit required)
6. Body may not have and mirrors, wings or metal parts
7. Body must extend a minimum of 6” in front of  front wheels and axle
8. Body when mounted on chassie must have at least 3” of clearance from ground.
9. Driver must be able to see over top of body when racing
10. High density foam must  be affixed to the front of the cockpit ahead of driver
11. No materials can be used to act as a tunnel cove around or behind driver.
12. All exposed edges of the body must be smooth and free of sharpe edges or materials
13. Body must be attached to the chassie/floorboard using screws, no nails may be used to attach the body to chassie/floorboard at any location on the car.

Steering

1.       Steering must be accomplished using a wheel or tiller.

2.       Steering must be attached to the front axle using steel Aircraft/marine cable, no solid connecting rods may be used as part of the steering connection to the front axle

3.       Cables must be clamped in a fashion to prevent disconnection from axle.

4.       Steering adjustment may be made by using a turnbuckle between axle and cable attachment. (Use of new SBD steering adjuster inside car recommended)

5.       Turnbuckle must have safety wire wrapped through it to prevent pull aparts)

6.       Steering radius must not exceed 1” left to right (measured at the point of entry to body)

7.       Steering boxes must be used to prevent steering travel of more then 1”. Blocks must be made of a material resistant to breakage. ¼ bolts with nuts recommended mount on both sides of the axle on both the left and right sides interiorly.

8.       Steering must operate smoothly and prevented from snagging by other chassie mounted components.

9.       Builders may obtain SBD steering system from All American – www.aasbd.org

Weights:

1.       Maximum weight for Hobby Street is 200 lbs, car and driver included.

2.       Additional weight may be added to bring the car and driver weight up to the allowable limit.

3.       Additional weight maybe made of lead or steel. If lead is used it must be completely painted so as to prevent lead transfer contacting the driver. Steel weight plates should be painted as well to prevent rust. No concrete or sand ballast may be used.

4.       All added weights must be attached to the car on the inside on the chasie plate of the car using a minimum ¼ - 20 bolt.  A washer must be used under the nut when fastening the weight to floorboard.

5.       No sliding weights or lead shot can be used in your car.

Brakes

1.      Brakes must be designed to stop the car in a safe and timely fashion.

2.      Brakes must be applied using a footbrake or approved hand brake.

3.       Brakes should be of a plunger type or built in a fashion to stop car without causing loss of control. Using a brake bar on rear wheels may cause them to lock up and driver to lose control of car.

4.       All brake cables must be made using steel aircraft or marine grade cable with solid clamps.

5.       Brake portion contacting track surface must be made using a rubber pad to prevent damage to track surface.

6.       Brake must be able to hold car in a stopped position on the hill.

7.       It is recommended that builders use official SBD brake components purchased from All American SBD …. www.aasbd.org

Common Rules

Lubrication

1. Use of Graphite, in any form is banned on any component of your car.
2. Remember any type of lubricating chemical should be done is a safe fashion.
3. You may only lube wheels and other components between heats and never between phases.
4. If wheels become contaminated with dirt or sand, inform race official before cleaning.

Wheels

1. Wheels swaps are done in fairness. If your division uses a wheel swap please remember that you are using another racers wheels and to care for them as you would your own.
2. No precision bearings may be used in place of original style bearing in the Hobby Class.