lunedì 1 ottobre 2012

"An American History the flat trak"

 > Is defined FLAT-TRACK (flat track) the track is normally made ​​from a racecourse and can be from 1/2 mile and 1 mile. The bikes have an engine capacity of 750cc max and can not mount the front brake.
It runs along the track always and exclusively counterclockwise, therefore the pedal controls are placed on the right side. Normally, the motion is put in motion by pushing. The pilot stocking a steel protection on the left foot

model flat trak



At the Barber Vintage Motorsports Museum.
Also called 70-XR-750
Predecessor Model KR
Class Dirt track racing
Engine 748 cc (45.6 cu in) air cooled V-twin, 2x 36 mm Mikuni carburetors
Bore / Stroke 76 × 81 mm (3.0 × 3.2 in) (1970 iron head)
79 × 76 mm (3.1 × 3.0 in) (alloy head 1972– )
Top speed 115 mph (185 km/h)[1]
Power 82 hp (61 kW) @ 7,700 rpm[1]
Transmission Triple chain primary, 4-speed, chain final drive
Frame type Steel twin loop full cradle
Suspension Front: Ceriani telescopic fork
Rear: 2x Girling shocks
Brakes Front: none
Rear: optional
Tires Spoked wheels, aluminum rims. 4 × 19 in (100 × 480 mm)
Rake, Trail 26°, 3.44 in (87 mm)
Wheelbase 56.75 in (1,441 mm)
Seat height 31 in (790 mm)
Weight 295 lb (134 kg) (claimed) (dry)
Fuel capacity 2.5 US gal (9.5 l; 2.1 imp gal)
Oil capacity 2.75 US qt (2,600 ml)

"polished steel"