1939 250 Sports
Frame
Numbered 64301 to 65745 (approx). Bolt on seat stays with drawback type chainstays for rear wheel adjustment..
Wheels
WM1x20 (f), WM2x19 (r). with identical hubs. Chrome rims & bolt on rear sprocket. Black spokes with NPB nipples.
Mudguards
Plain inverted U section, unvalanced. Rear, two piece with detachable main section. Front & rear with flared ends.
Tanks
‘Aero’ type petrol tank chrome plated and painted panels with Enots reserve tap. Single central CEE-ESS type filler with rear fitted petrol balance pipe. Two bolt damper arm fixing.
Engine
Numbered Z501 to Z750 (approx) - 2 valve 245cc with cast iron open valve cylinder head, bolted to the barrel from above. 14mm side plug. Rear mounted Lucas Maglita ignition/dynamo. Oil feed to cylinder. Plain cast alloy rocker cover.
Brakes
Both 6 3/4”, coupled with aluminium shoes.
Electrics
Lucas DU142 8” headlamp, CZ23 8-0-8 ammeter and MT210 rear lamp. HF180 Clearhooter electric horn with Lucas LU76204 horn push.
Transmission
4 speed gearbox with foot change on LHS. Aluminium oil bath chaincase with 'R' on clutch dome.
Carburetter
Amal type 75/151 with Binks twist grip control. Flame arrester fitted.
Exhaust system
Single 1 3/4” high level pipe into barrel silencer and plain tailpipe. Heat shield fitted to pipe.
Standard Fittings
80MPH illuminated trip speedometer. Lycett 6B pillion pad. Mechanism shield, battery cover, licence holder, 7/8” handlebars with long front brake lever. Single low level toolbox with screw fixing to lid fitted to LHS of machine. Steering damper and handwheel operated fork shock absorber. Pressed steel stand. Open ended ‘D’ section forks. THAPEX tyre inflator. Cover to front engine plates.
Extras
Blue or Maroon paint finish to mudguards & petrol tank only.
