Howard Davies 70/S, 500 cc 1926
En ganska kortslagig (kvadratisk) sidventils JAP-motor
This picture and specifications are from the book Vincent HRD Gallery with permission from the author, Roy Harper
...Tekniska data
...Specifications
Motortyp JAP 1-cyl. Sports Sidventil Engine typ JAP 1-cyl. Sports Sidevalve
Slagvolym 488 cc Capacity 488 cc
Borr x slag 85,5 x 85,0 mm Bore x stroke 85,5 x 85,0 mm
Förgasare Binks two lever eller Amal Carburettor Binks two lever or Amal
Tändsystem ML magnet Ignition ML magneto
Smörjsystem Pilgrim mekanisk pump (Castrol XL) Lubrcation Pilgrim mechanical pump (Castrol XL)
Växellåda Burman 3-växlad, utväxling 4.7, 6.96 och 9.5 Gearbox Burman 3-speed, ratios 4.7, 6.95 and 9.5
Transmission Kedja 5/8" x 1/4" Transmission Chain 5/8" x 1/4"
Bromsar fram och bak: 6" Brakes front and rear: 6"
Däck, fram & bak 26 x 3,25" Dunlop TT Pattern Cords Tyres, front & rear 26 x 3,25" Dunlop TT Pattern Cords
Bränsletank 2 gallons (9 liter), lackad svart / guldrand Petrol tank 2 gallons, painted black / gold
Oljetank 2 pints (1,1 lit) Oil tank 2 pints
Hjulbas 53½" (136 cm) Wheelbase 53½"
Ram HRD single loop, lackad svart Frame HRD single loop, painted black
Framgaffel Webb Front fork Webb
Stänkskärmar 5", D-typ Mudguards 5", D-type
Toppfart 70 Mph (13 km/t) Top speed 70 Mph
Pris 66 Guineas (69,3 £) Price 66 Guineas (69,3 £)