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Motorcycle Class Lookup

How to use it

Select a class from the dropdown menu labeled “Enter Class Below.” 
Once selected, the 1/2 Mile, 1 Mile, and 2 Kilometer records will appear.
You can find definitions below the lookup tool if you need help.

Defintions

Classes are constructed in this format: (Designated Frame Class) / (Designated Engine Class) – Engine size / Engine Stroke

Designated Frame Class

P – Production
M – Modified Production
A – Special Construction/Altered
MPS – Modified Partial Streamlining
APS – Special Construction Partial Streamlining
SC – Sidecar
SCS – Sidecar Streamliner
S – Streamliner

Fuel Type
G
– Gas
F – Fuel

Aspiration
B
– Blown
N– Natural

Engine Stroke
2
4

Designated Engine Class

P – Production
PE – Production Electric
PP – Production Push Rod
PB – Production Supercharged
PT – Production Overhead Cam Twin
PV – Production Vintage
G – Modified Engine: Gasoline
BG – Supercharged Engine: Gasoline
PBG – Supercharged Push Rod Engine: Gasoline
TBG – Supercharged Overhead Cam Twin: Gasoline
VBG – Supercharged Vintage Engine: Gasoline
F – Modified Engine: Fuel
PF – Push Rod Engine: Fuel
TF – Overhead Cam Twin: Fuel
UF – Unlimited Engine: Fuel
VF – Vintage Engine: Fuel
BF – Supercharged Engine: Fuel
PBF – Supercharged Push Rod Engine: Fuel
TBF – Supercharged Overhead Cam Twin: Fuel
VBF – Supercharged Vintage Engine: Fuel
O – Steam, Turbine
E – Electric

Engine size (cc)
50
100
125
175
250
350
400
500
650
750
1000
1350
1650
2000
3000
3000+1

Electric Voltage
A3
 – 382.9 and above
A2 – 330.1 – 382.8
A – 264.1 – 330.0
B – 211.3 – 264.0
C – 184.9 – 211.2
D – 158.5 – 184.8
E – 132.1 -158.4
F – 105.7 – 132.0
G – 79.3 – 105.6
H – 0 – 79.2