bikerMetric custom metric bobbers, choppers, and cafe racers by honda, yamaha, kawaski, and suzuki
This was the last year Crocker made singles for speedway racing. They were being pushed out of competition by *** machines with greater power. Two years after this bike was made, Crocker introduced their first v-twin, and a legend was born.
1934 Crocker Speedway specs:
Bore: 3 1/4″ (82.55mm)
Stroke: 3 5/8″ (92.085mm)
Displacement: 30.06 cubic inches
Compression Ratio: 14:1
Crankpin/crank journals: 1 1/8″, drilled for oil
Main Shafts: 1″ with 7 degree taper
Bearings: roller for mainshafts and crankpin
Valves: 1 3/4″, set at “close angle” in “shallow domed interior”
Valve Springs: three coil springs per valve
Ignition: gear driven Lucas magneto
Carburetor: two bowl Amal
Power Peak: 6,000 rpm
Fuel: alcohol
Frame: chrome molybdenum tubing
Gear Ratio: 8.75:1
Weight: 235 pounds
Horsepower: Approximately 40+ bhp
Cost: $385
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