AJS Silver Streak 500


Make Model.

AJS Silver Streak 500




Single cylinder, single port, push-rod OHV with polished heads and ports


498 cc  / 30.4 cu in
Bore x Stroke 82.5 x 93 mm
Compression Ratio 5.9 or 7.1:1
Cooling System Air cooled
Lubrication Dry sump
Oil Capacity 2.8 L / 6 US pt
Exhaust 1-into-1, high level


Amal carburetor
Starting Kick

Max Power

3.7 kW / 4.98 hp


4 Speed, Burman gearbox
Final Drive Chain
Gear Ratios 1st 13.3 / 2nd 8.8 / 3rd 6.4 / 4th 5.0:1

Front Suspension

Girder fork

Rear Suspension

Rigid, spring loaded saddle

Front Brakes


Rear Brakes

Wheels Chrome plated rims with wire spokes
Front Rim 3.0 x 26
Rear Rim 3.5 x 26
Dry Weight 150 kg / 330 lbs
Fuel Capacity 11 L / 3.0 US gal

The AJS Silver Streak was a British motorcycle launched in 1938 and described in the sales brochure as the 'aristocrats of the motor-cycle world'. Produced with a choice of 250 cc, 350 cc and 500 cc engines, the Silver Streaks were super sport machines with a special polished finish and hand tuned engines. As many parts as possible were specially chrome plated, including the mudguards, headlamp, fork links, front and rear chain cases, oil and petrol tanks and even the tool-box.

The Silver Streak had high ground clearance and a substantial crankcase shield which made it a good competition motorcycle. A low bottom gear made it useful for cross country and close ratios made it a fast road bike.