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would like to thank
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during 2013
100mphscooter.com 1/4 Mile Sprint - Classes and Class Rules for 2014
After further discussions with the National Sprint
Association - Northern Section we are holding a six
round championship in 2014.
Our classes have been developed over a eight year period
to suit all types of scooter making sprinting both
competitive and fun.
For an in depth explanation into the classes please click here.
| The 2013 Scooter Classes are listed below - Class Rules follow in the same order | ||
| Automatic Street Legal Scooter up to 125cc | (Auto up to 125cc) | |
| Automatic Street Legal Scooter over 125cc | (Auto over 125cc) | |
| Geared Street Legal Scooter up to 210cc | (Geared up to 210cc) | |
| Geared Street Legal Scooter over 210cc | (Geared over 210cc) | |
| Modified Street Legal Scooter Unlimited cc | (Modified Scooter) | |
| Automatic Competition Scooter Unlimited cc | (Auto Competition Scooter) | |
| Geared Competition Scooter Unlimited cc | (Geared Competition Scooter) | |
| Automatic Top Scooter - Unlimited cc | (Auto Top Scooter) | |
| Geared Top Scooter - Unlimited cc | (Geared Top Scooter) | |
The Modified Scooter Class now accommodates Street Legal Scooters which have been modified in such a way that they still resemble "a Scooter" but no longer operate in the way they were designed and manufactured
For example, a Street Legal Scooter with:
1. A motorcycle engine grafted into its frame
2. A scooter engine which has had its barrel and/or crank cases welded
3. A scooter engine which has a modified cooling system, including water cooled heads
and/or cylinders, or where cooling cowlings cannot be fitted
4. A scooter with a day time MOT - e.g. no lights
The above list is not an exhausted list for the Street Legal Scooter classes. Please check your particular Class Rules below and if your Street Legal Scooter does not conform to the rules it will compete in the Modified Class
The Competition Scooter Class and Top Scooter Class has now been separated into Automatic and Geared.
Hopefully by adding the classes, we should encourage more scooterists to attend and take part in our events
Scrutineering shall be carried out by an NSA Licenced Scrutineer. Class delegation shall be at the discretion of the Class Specification Scrutineer. If your scooter is modified beyond the class rules the Class Specification Scrutineer will inform you and you may be moved into the relevant class. The Clark of the Course shall have the final say in any disputes
Without exception, the top 3 Scooters in each class may be subject to onsite tests including cylinder head removal for technical inspection. Failure to comply may result in disqualification
Scooters in AUTOMATIC STREET SCOOTER up to 125CC (Auto up to 125cc) must conform to the following:
1. Full MOT & Tax, Daytime MOT is not allowed. Registration number plate must be fitted. Must be presented for scrutineering in a road ride'able condition
2. Frame - Modifications will be accepted, but with the engine fitted into the original frame mountings as it was designed and manufactured
3. Body - The scooter must retain its original silhouette. Streamlining fairings are not allowed. Fuel and oil tank must be no less than standard capacity and must be located in place of origin and must be used to fuel the engine - pre mix is allowed. Helmet box must be in situ. Seat must be complete and fixed. Commercially available aftermarket body and parts are allowed
4. Wheels and Tyre's - Road wheels and road legal tyres
5. Brakes - Both wheels must have fully operational brakes
6. Suspension - If the scooter is designed to have suspension fitted, then it must be fitted and in good working order. Locked out suspension is not allowed
7. Lights and Horn - Lights and horn must be working, lights and indicators must be taped up
8. Engine - Must be a scooter engine built from scooter parts and must start as designed by the manufacturer. Motorcycle Piston and Connecting Rod are permitted. Welding to crank cases is not allowed
9. Barrel - Must be of origin for the engine for which it was designed, no external welding is allowed except for repair purposes only - Motorcycle barrels are not allowed
10. Cooling - Cooling must be achieved by method to which the engine was designed and manufactured. Water pump must be in situ and operative
11. Fuel - Roadside pump petrol only, maximum 100 octane - octane boost is not allowed
12. Aspiration - Normally aspirated for model of scooter
13. Exhaust - Exhaust must be silenced, and must not exceed 98db
14. Gear Change - Gear changing must be by original method as designed by manufacturer
15. Suitable protective clothing is required including suitable gloves, boots & ACU approved helmet
Additional information:
The Street Scooter Class is designed for the street legal scooter which operates as it was designed and manufactured, and without modification
Scrutineering shall be carried out by a NSA Licensed Scrutineer. Class delegation shall be at the discretion of the Class Specification Scrutineer. If your scooter is modified beyond the class rules the Class Specification Scrutineer will inform you and you may be moved into the relevant class. The Clark of the Course shall have the final say in any disputes
Without exception, the top 3 Scooters in class may be subject to onsite tests including cylinder head removal for technical inspection. Failure to comply may result in disqualification
Motor Sport is dangerous - Riders are advised to conform to the following:
ACU approved helmet with a visible gold sticker and gloves must be worn.
Suitable protective clothing, e.g. one or two piece zip together leathers or similar and boots are advisable
Scooters in AUTOMATIC STREET SCOOTER over 125CC (Auto over 125cc) must conform to the following:
1. Full MOT & Tax, Daytime MOT is not allowed. Registration number plate must be fitted. Must be presented for scrutineering in a road ride'able condition
2. Frame - Modifications will be accepted, but with the engine fitted into the original frame mountings as it was designed and manufactured
3. Body - The scooter must retain its original silhouette. Streamlining fairings are not allowed. Fuel and oil tank must be no less than standard capacity and must be located in place of origin and must be used to fuel the engine - pre mix is allowed. Helmet box must be in situ. Seat must be complete and fixed. Commercially available aftermarket body and parts are allowed
4. Wheels and Tyre's - Road wheels and road legal tyres
5. Brakes - Both wheels must have fully operational brakes
6. Suspension - If the scooter is designed to have suspension fitted, then it must be fitted and in good working order. Locked out suspension is not allowed
7. Lights and Horn - Lights and horn must be working, lights and indicators must be taped up
8. Engine - Must be a scooter engine built from scooter parts and must start as designed by the manufacturer. Motorcycle Piston and Connecting Rod are permitted. Welding to crank cases is not allowed
9. Barrel - Must be of origin for the engine for which it was designed, no external welding is allowed except for repair purposes only - Motorcycle barrels are not allowed
10. Cooling - Cooling must be achieved by method to which the engine was designed and manufactured. Water pump must be in situ and operative
11. Fuel - Roadside pump petrol only, maximum 100 octane - octane boost is not allowed
12. Aspiration - Normally aspirated for model of scooter
13. Exhaust - Exhaust must be silenced, and must not exceed 98db
14. Gear Change - Gear changing must be by original method as designed by manufacturer
15. Suitable protective clothing is required including suitable gloves, boots & ACU approved helmet
Additional information:
The Street Scooter Class is designed for the street legal scooter which operates as it was designed and manufactured, and without modification
Scrutineering shall be carried out by a NSA Licensed Scrutineer. Class delegation shall be at the discretion of the Class Specification Scrutineer. If your scooter is modified beyond the class rules the Class Specification Scrutineer will inform you and you may be moved into the relevant class. The Clark of the Course shall have the final say in any disputes
Without exception, the top 3 Scooters in class may be subject to onsite tests including cylinder head removal for technical inspection. Failure to comply may result in disqualification
Motor Sport is dangerous - Riders are advised to conform to the following:
ACU approved helmet with a visible gold sticker and gloves must be worn.
Suitable protective clothing, e.g. one or two piece zip together leathers or similar and boots are advisable.
Scooters in GEARED STREET SCOOTER up to 210CC (Geared up to 210cc) must conform to the following:
1. Full MOT & Tax, Daytime MOT is not allowed. Registration number plate must be fitted. Must be presented for scrutineering in a road ride'able condition
2. Frame - Modifications will be accepted, but with the engine fitted into the original frame mountings as it was designed and manufactured
3. Body - The scooter must retain its original silhouette. Streamlining fairings are not allowed. Fuel and oil tank must be no less than standard capacity and must be located in place of origin and must be used to fuel the engine - pre mix is allowed. Seat must be complete and fixed. Commercially available aftermarket body and parts are allowed
4. Wheels and Tyre's - Road wheels and road legal tyres
5. Brakes - Both wheels must have fully operational brakes
6. Suspension - If the scooter is designed to have suspension fitted, then it must be fitted and in good working order. Locked out suspension is not allowed
7. Lights and Horn - Lights and horn must be working, lights and indicators must be taped up
8. Engine - Must be a scooter engine built from scooter parts and must start as designed by the manufacturer. Motorcycle Piston and Connecting Rod are permitted. Welding to crank cases is not allowed
9. Barrel - Must be of origin for the engine for which it was designed, no external welding is allowed except for repair purposes only - Motorcycle barrels are not allowed
10. Cooling - Cooling must be achieved by method to which the engine was designed and manufactured. Fan, fan cowl, head cowl must be in situ and operative. Modified fans are allowed
11. Fuel - Roadside pump petrol only, maximum 100 octane - octane boost is not allowed
12. Aspiration - Normally aspirated for model of scooter
13. Exhaust - Exhaust must be silenced, and must not exceed 98db
14. Gear Change - Gear changing must be by original method as designed by manufacturer
15. Suitable protective clothing is required including suitable gloves, boots & ACU approved helmet
Additional information:
The Street Scooter Class is designed for the street legal scooter which operates as it was designed and manufactured, and without modification
Scrutineering shall be carried out by a NSA Licensed Scrutineer. Class delegation shall be at the discretion of the Class Specification Scrutineer. If your scooter is modified beyond the class rules the Class Specification Scrutineer will inform you and you may be moved into the relevant class. The Clark of the Course shall have the final say in any disputes
Without exception, the top 3 Scooters in class may be subject to onsite tests including cylinder head removal for technical inspection. Failure to comply may result in disqualification
Motor Sport is dangerous - Riders are advised to conform to the following:
ACU approved helmet with a visible gold sticker and gloves must be worn.
Suitable protective clothing, e.g. one or two piece zip together leathers or similar and boots are advisable.
Scooters in GEARED STREET SCOOTER over 210CC (Geared over 210cc) must conform to the following:
1. Full MOT & Tax, Daytime MOT is not allowed. Registration number plate must be fitted. Must be presented for scrutineering in a road ride'able condition
2. Frame - Modifications will be accepted, but with the engine fitted into the original frame mountings as it was designed and manufactured
3. Body - The scooter must retain its original silhouette. Streamlining fairings are not allowed. Fuel and oil tank must be no less than standard capacity and must be located in place of origin and must be used to fuel the engine - pre mix is allowed. Seat must be complete and fixed. Commercially available aftermarket body and parts are allowed
4. Wheels and Tyre's - Road wheels and road legal tyres
5. Brakes - Both wheels must have fully operational brakes
6. Suspension - If the scooter is designed to have suspension fitted, then it must be fitted and in good working order. Locked out suspension is not allowed
7. Lights and Horn - Lights and horn must be working, lights and indicators must be taped up
8. Engine - Must be a scooter engine built from scooter parts and must start as designed by the manufacturer. Motorcycle Piston and Connecting Rod are permitted. Welding to crank cases is not allowed
9. Barrel - Must be of origin for the engine for which it was designed, no external welding is allowed except for repair purposes only - Motorcycle barrels are not allowed
10. Cooling - Cooling must be achieved by method to which the engine was designed and manufactured. Fan, fan cowl, head cowl must be in situ and operative. Modified fans are allowed
11. Fuel - Roadside pump petrol only, maximum 100 octane - octane boost is not allowed
12. Aspiration - Normally aspirated for model of scooter
13. Exhaust - Exhaust must be silenced, and must not exceed 98db
14. Gear Change - Gear changing must be by original method as designed by manufacturer
15. Suitable protective clothing is required including suitable gloves, boots & ACU approved helmet
Additional information:
The Street Scooter Class is designed for the street legal scooter which operates as it was designed and manufactured, and without modification
Scrutineering shall be carried out by a NSA Licensed Scrutineer. Class delegation shall be at the discretion of the Class Specification Scrutineer. If your scooter is modified beyond the class rules the Class Specification Scrutineer will inform you and you may be moved into the relevant class. The Clark of the Course shall have the final say in any disputes
Without exception, the top 3 Scooters in class may be subject to onsite tests including cylinder head removal for technical inspection. Failure to comply may result in disqualification
Motor Sport is dangerous - Riders are advised to conform to the following:
ACU approved helmet with a visible gold sticker and gloves must be worn.
Suitable protective clothing, e.g. one or two piece zip together leathers or similar and boots are advisable.
Scooters in MODIFIED STREET SCOOTER UNLIMITED CC (Modified Scooter) must conform to the following:
1. Full MOT & Tax, Daytime MOT is allowed. Registration number plate must be fitted. Must be presented for scrutineering in a road ride'able condition
2. Frame - Modifications will be accepted. Modified engine mounting is allowed
3. Body - Modifications will be accepted. Streamlining fairings are allowed
4. Wheels and Tyre's - Road wheels and road legal tyres
5. Brakes - Both wheels must have fully operational brakes
6. Suspension - If the scooter is designed to have suspension fitted, then it must be fitted and in good working order. Locked out suspension is allowed
7. Lights and Horn - Lights and horn must be working, lights and indicators must be taped up
8. Motorcycle engines and/or parts are allowed. Welding to crank cases is allowed
9. Barrel - Motorcycle barrels are allowed. Welding is allowed
10. Cooling - Modified method of cooling is allowed
11. Fuel - Roadside pump petrol only, maximum 100 octane - octane boost is not allowed
12. Aspiration - Normally aspirated for model of scooter
13. Exhaust - Exhaust must be silenced, and must not exceed 98db
14. Gear Change - modified gear changing is allowed
15. Suitable protective clothing is required including suitable gloves, boots & ACU approved helmet
Additional information:
The Modified Scooter Class is designed to accommodate Street Legal Scooters which have been modified in such a way that they still resemble "a Scooter" but no longer operate in the way they were designed and manufactured
Scrutineering shall be carried out by a NSA Licensed Scrutineer. Class delegation shall be at the discretion of the Class Specification Scrutineer. If your scooter is modified beyond the class rules the Class Specification Scrutineer will inform you and you may be moved into the relevant class. The Clark of the Course shall have the final say in any disputes
Without exception, the top 3 Scooters in class may be subject to onsite tests including cylinder head removal for technical inspection. Failure to comply may result in disqualification
Motor Sport is dangerous - Riders are advised to conform to the following:
ACU approved helmet with a visible gold sticker and gloves must be worn.
Suitable protective clothing, e.g. one or two piece zip together leathers or similar and boots are advisable.
Scooters in AUTOMATIC COMPETITION SCOOTER UNLIMITED CC (Auto Competition Scooter) must conform to the following:
1. Frame - Modified and fabricated frames including wheelie bars will be accepted
2. Modified body including fabricated and streamlining fairings are allowed
3. Wheels and Tyre's - None standard wheels and slick tyres are allowed
4. Suspension - Locked or no suspension is allowed
5. Brakes - Both wheels must have fully operational brakes
6. Forks - Non standard forks are allowed which may be locked
7. Lights and Horn - If fitted, lights and indicators must be taped up, horn does not have to work
8. Engine - Must be a scooter engine built from scooter parts, with the exception of Motorcycle Piston and Connecting Rod. But not specifically in the frame it was designed for, example auto engine in a traditional frame. Welding to crank cases is not allowed
9. Barrel - Must be of origin for the engine for which it was designed, external welding is not allowed except for repair purposes only - Motorcycle barrels are not allowed
10. Cooling - Modified method of cooling is allowed
11. Fuel - Roadside pump petrol, Av Gas, octane boost is allowed
12. Fuel Isolator - Fuel ON/OFF Indicator is required
13. Aspiration - Normally aspirated for model of scooter
14. Exhaust - Racing exhaust is allowed but must be silenced, and must not exceed 101db
15. Gear Change - modified gear changing is allowed
16. Bore and stroke - must be indicated on crank case side
17. Ignition Isolator - Ignition cut-out lanyard is required
18. Suitable protective clothing is required including suitable gloves, boots & ACU approved helmet
Additional information:
Competition Scooter Class was designed for the entry level purpose built sprinting scooter, which can be built on a budget. To keep this class as such, a Competition scooter is not allowed to run any quicker than 13.1 seconds. If a Competition scooter does run quicker than 13.1 seconds it will automatically score points in the Top Scooter Class. A Competition scooter running faster than 13.1 seconds at three consecutive events will automatically be promoted to Top Scooter
Scrutineering shall be carried out by a NSA Licensed Scrutineer. Class delegation shall be at the discretion of the Class Specification Scrutineer. If your scooter is modified beyond the class rules the Class Specification Scrutineer will inform you and you may be moved into the relevant class. The Clark of the Course shall have the final say in any disputes
Without exception, the top 3 Scooters in class may be subject to onsite tests including cylinder head removal for technical inspection. Failure to comply may result in disqualification
Motor Sport is dangerous - Riders in this class must conform to the following:
ACU approved helmet with a visible gold sticker, suitable protective clothing, e.g. one or two piece zip together leathers or similar, gloves and boots are mandatory.
Scooters in GEARED COMPETITION SCOOTER UNLIMITED CC (Geared Competition Scooter) must conform to the following:
1. Frame - Modified and fabricated frames including wheelie bars will be accepted
2. Modified body including fabricated and streamlining fairings are allowed
3. Wheels and Tyre's - None standard wheels and slick tyres are allowed
4. Suspension - Locked or no suspension is allowed
5. Brakes - Both wheels must have fully operational brakes
6. Forks - Non standard forks are allowed which may be locked
7. Lights and Horn - If fitted, lights and indicators must be taped up, horn does not have to work
8. Engine - Must be a scooter engine built from scooter parts, with the exception of Motorcycle Piston and Connecting Rod. But not specifically in the frame it was designed for, example auto engine in a traditional frame. Welding to crank cases is not allowed
9. Barrel - Must be of origin for the engine for which it was designed, external welding is not allowed except for repair purposes only - Motorcycle barrels are not allowed
10. Cooling - Modified method of cooling is allowed
11. Fuel - Roadside pump petrol, Av Gas, octane boost is allowed
12. Fuel Isolator - Fuel ON/OFF Indicator is required
13. Aspiration - Normally aspirated for model of scooter
14. Exhaust - Racing exhaust is allowed but must be silenced, and must not exceed 101db
15. Gear Change - modified gear changing is allowed
16. Bore and stroke - must be indicated on crank case side
17. Ignition Isolator - Ignition cut-out lanyard is required
18. Suitable protective clothing is required including suitable gloves, boots & ACU approved helmet
Additional information:
Competition Scooter Class was designed for the entry level purpose built sprinting scooter, which can be built on a budget. To keep this class as such, a Competition scooter is not allowed to run any quicker than 13.1 seconds. If a Competition scooter does run quicker than 13.1 seconds it will automatically score points in the Top Scooter Class. A Competition scooter running faster than 13.1 seconds at three consecutive events will automatically be promoted to Top Scooter
Scrutineering shall be carried out by a NSA Licensed Scrutineer. Class delegation shall be at the discretion of the Class Specification Scrutineer. If your scooter is modified beyond the class rules the Class Specification Scrutineer will inform you and you may be moved into the relevant class. The Clark of the Course shall have the final say in any disputes
Without exception, the top 3 Scooters in class may be subject to onsite tests including cylinder head removal for technical inspection. Failure to comply may result in disqualification
Motor Sport is dangerous - Riders in this class must conform to the following:
ACU approved helmet with a visible gold sticker, suitable protective clothing, e.g. one or two piece zip together leathers or similar, gloves and boots are mandatory.
Scooters in AUTOMATIC TOP SCOOTER SCOOTER UNLIMITED CC (Auto Top Scooter) must conform to the following:
1. Frame - Modified and fabricated frames including wheelie bars will be accepted
2. Modified body including fabricated and streamlining fairings are allowed
3. Wheels and Tyre's - None standard wheels and slick tyres are allowed
4. Suspension - Locked or no suspension is allowed
5. Brakes - Both wheels must have fully operational brakes
6. Forks - Non standard forks are allowed which may be locked
7. Lights and Horn - If fitted, lights and indicators must be taped up, horn does not have to work
8. Engine - Must be a scooter engine. Any modification is allowed including the use of Motorcycle Parts. But not specifically in the frame it was designed, for example auto engine in a traditional frame. Welding to crank cases is allowed
9. Barrel - The use of a Motorcycle barrel is allowed. Welding is also allowed
10. Cooling - Modified method of cooling is allowed
11. Fuel - Roadside pump petrol, Av Gas, Octane boost, Racing fuel, Nitrous all allowed
12. Fuel Isolator - Fuel ON/OFF Indicator is required
13. Aspiration - None standard aspiration is allowed e.g. turbo, supercharger
14. Exhaust - Racing exhaust is allowed but must be silenced, and must not exceed 101db
15. Gear Change - modified gear changing is allowed
16. Bore and stroke - must be indicated on crank case side
17. Ignition Isolator - Ignition cut-out lanyard is required
18. Suitable protective clothing is required including suitable gloves, boots & ACU approved helmet
Additional information:
Top Scooter Class has been designed as the ultimate class for the rider who wants to make his or her scooter go as fast as possible. It pretty much has no limits. Basically, lets see just how well we can make a scooter engine perform
Scrutineering shall be carried out by a NSA Licensed Scrutineer. Class delegation shall be at the discretion of the Class Specification Scrutineer. If your scooter is modified beyond the class rules the Class Specification Scrutineer will inform you and you may be moved into the relevant class. The Clark of the Course shall have the final say in any disputes
Without exception, the top 3 Scooters in class may be subject to onsite tests including cylinder head removal for technical inspection. Failure to comply may result in disqualification
Motor Sport is dangerous - Riders in this class must conform to the following:
ACU approved helmet with a visible gold sticker, suitable protective clothing, e.g. one or two piece zip together leathers or similar, gloves and boots are mandatory
Scooters in GEARED TOP SCOOTER SCOOTER UNLIMITED CC (Geared Top Scooter) must conform to the following:
1. Frame - Modified and fabricated frames including wheelie bars will be accepted
2. Modified body including fabricated and streamlining fairings are allowed
3. Wheels and Tyre's - None standard wheels and slick tyres are allowed
4. Suspension - Locked or no suspension is allowed
5. Brakes - Both wheels must have fully operational brakes
6. Forks - Non standard forks are allowed which may be locked
7. Lights and Horn - If fitted, lights and indicators must be taped up, horn does not have to work
8. Engine - Must be a scooter engine. Any modification is allowed including the use of Motorcycle Parts. But not specifically in the frame it was designed, for example auto engine in a traditional frame. Welding to crank cases is allowed
9. Barrel - The use of a Motorcycle barrel is allowed. Welding is also allowed
10. Cooling - Modified method of cooling is allowed
11. Fuel - Roadside pump petrol, Av Gas, Octane boost, Racing fuel, Nitrous all allowed
12. Fuel Isolator - Fuel ON/OFF Indicator is required
13. Aspiration - None standard aspiration is allowed e.g. turbo, supercharger
14. Exhaust - Racing exhaust is allowed but must be silenced, and must not exceed 101db
15. Gear Change - modified gear changing is allowed
16. Bore and stroke - must be indicated on crank case side
17. Ignition Isolator - Ignition cut-out lanyard is required
18. Suitable protective clothing is required including suitable gloves, boots & ACU approved helmet
Additional information:
Top Scooter Class has been designed as the ultimate class for the rider who wants to make his or her scooter go as fast as possible. It pretty much has no limits. Basically, lets see just how well we can make a scooter engine perform
Scrutineering shall be carried out by a NSA Licensed Scrutineer. Class delegation shall be at the discretion of the Class Specification Scrutineer. If your scooter is modified beyond the class rules the Class Specification Scrutineer will inform you and you may be moved into the relevant class. The Clark of the Course shall have the final say in any disputes
Without exception, the top 3 Scooters in class may be subject to onsite tests including cylinder head removal for technical inspection. Failure to comply may result in disqualification
Motor Sport is dangerous - Riders in this class must conform to the following:
ACU approved helmet with a visible gold sticker, suitable protective clothing, e.g. one or two piece zip together leathers or similar, gloves and boots are mandatory