Land
Speed Motorcycle Classes
One of the wonderful
things about Land Speed Racing is there is a class for just about
anything one can imagine. The amount of creativity and talent in
the world never stops amazing us. The large number of motorcycle
classes can be overwhelming when trying to figure out how the classes
work. We'll try to make that a little easier. The following is a
guide only. Check with your sanctioning organization for their specific
requirements.
Typical Motorcycle Number/Class
plate.
Competition Registration Number
The number
2801 on this plate is the competition number as registered with the
race sanctioning organization, ECTA, SCTA etc.

Classification of Frames
The first
letter(s) on the number plate, in this case "M", is the
frame classification. Here we have Modified Frame as seen on the table
below.
| Production |
P |
| Modified |
M |
| Altered
(Special Construction) |
A |
| Modified
Partial Streamlining |
MPS |
| Altered
Partial Streamling |
APS |
| Sidecar |
SC |
| Streamliner |
S |
Classification of Engines
The
next letter(s) of the class designation, in this case "PG",
indicates this bike's engine type as Pushrod Engine running on Gasoline.
See table below.

| Production |
P |
| Production
Push Rod |
PP |
| Production
Supercharged (blown) |
PS |
| Production
Vintage |
PV |
| Modified
Engine: Gasoline |
G |
| Pushrod
Engine: Gasoline |
PG |
| Vintage
Engine: Gasoline |
VG |
| Unlimited
Engine: Gasoline |
UG |
| Supercharged
Engine: Gasoline |
BG |
| Supercharged
Push Rod Engine: Gasoline |
PBG |
| Supercharged
Vintage Engine: Gasoline |
VBG |
| Modified
Engine: Fuel |
F |
| Pushrod
Engine: Fuel |
PF |
| Vintage
Engine: Fuel |
VF |
| Supercharged
Engine: Fuel |
BF |
| Unlimited
Engine: Fuel |
UF |
| Supercharged
Pushrod Engine: Fuel |
PBF |
| Supercharged
Vintage Engine: Fuel |
VBF |
| (Omega),
Steam, Turbine or Electric |
O |
Engine Displacement Classifications
The last
part of the class designation, "1350/4" indicates the engine
size and whether it is a 2 cycle, 4 cycle or Rotary engine. Here we
have a 1350cc 4 cycle engine. Even though the actual displacement
of this vehicle is 1202cc, being more than 1000cc and less than 1350cc
puts it in the 1350cc class. The "/4" would be replaced
with "/2" for a two cycle engine or "/R" for Rotary.

| 50cc |
100cc |
| 125cc |
| 175cc |
| 250cc |
| 350cc |
| 400cc |
| 500cc |
| 650cc |
| 750cc |
| 1000cc |
| 1350cc |
| 1650cc |
| 2000cc |
| 3000cc |
| 3001+cc |