These are the known mechanical and performance specifications for your 1981 Honda CM 250 TB.
Basic Specs
Engine
Displacement249.00 ccm (15.19 cubic inches)
Type
DetailsV2, four-stroke
Max RPM
Compression
Bore/Stroke
Valves/Cylinder
FuelingCarburettor
Ignition
Exhaust
Lubrication
CoolingAir
Chassis
Frame Type
Rake
Trail
Front Suspension
Front Travel
Rear Suspension
Rear Travel
Seat
Seat Height
Alt. Seat Height
Total Height
Total Length
Total Width
Ground Clearance
Wheelbase
Dry Weight
Wet Weight
Wheels & Brakes
Front Tire/Tyre
Rear Tire/Tyre
Front Brakes
Front Brake Diameter
Rear Brakes
Rear Brake Diameter
Wheels
Comments
Couldn´t find this on your site (found CM 250 C etc.). Have owned this since 1981 (have pictures) less than 3000 miles on the clock. Cost just over £950 new. Basically the CB 250 engine, but customised with shorter exhausts etc.