SPARTA NL 250cc Victoria 1953-1957
ENGINE : Victoria K26
cylinder capacity : 247 cc
bore and stroke : 67 mm x 70 mm
compression ratio : 6,2 : 1
power : 14 hp at 5200/rpm
piston : flat, 3 pistonrings
primary gears : 20 t x 46 T
primary chain : 3/8" x 7/32", duplex
secondary gears : 17 T x 42 T (1/2"), with a sidecar 46 T behind
secondary chain : 1/2" x 5/16" roller diameter 8,5 mm
gears : 4
gear ratio : 1:1, 1,29:1, 1,77:1, 2,98:1
engine gear : 2,3:1
gear back wheel : 2,3:1 (with a sidecar 2,6:1)
lubrication gearbox : SAE 20
lubrication clutch : SAE 20
carburator : BING A.J.2/24/24
main jet size : 115, possible after running-in 110
needle jet size : 2,66
idle jet size : 50
needle adjustment : second gap from the top
air jet : 1,5 turn open
airfilter : 'Knecht' with steel-wool element
electrical: Noris direct current dynamo MLZSA 60/6/1600L with automatic feed from the battery
ignition timing : 4automatic, depends on the revolution (1,5 - 4,5 mm)
contact breaker gap : 0,4 mm

sparkplug (normal use) :
- Lodge HH 14, Bosch W 225 T11, KLG F70, BZ C-70

sparkplug (fast driving) :
- Lodge HH 14, Bosch W 240 T11, KLG F80, BZ C-80

electrode gap : 0,6 - 0,7 mm
FRAME : NL 250
seat(s) : rubber 'SPARTA' seat with adjustable rubber suspension
tire sizes : front 19" x 3,00" back 19" x 3,00"
tire pressure : front 1,2 atm. back 1,3 atm. (with passenger 2 atm)
brakes : front � 150 mm back � 150 mm
brake shoe : front 115 x 19 x 4 mm back 115 x 19 x 4 mm
suspension : front telescope fork back
weight : 105 kg
headlamp : Hella 160 NTZ, f 160 mm, lamp bulb 35/35W
parking-lamp : 1,2 W, in headlamp
controle-lamp : 6V/2W
tail-lamp : Hella streamlined model with stoplight, above numberplate, lamp 6W
stop-light : 6V/5W
speedo-meter : VDO 'Sparta' in headlamp
horn : electric horn
petrol lubrication : 1:20, SAE 30
petrol consumption : 1:30
petrol tank displacement : 12,5 liter
petrol tank, spare : 0,5 liter
maximum speed : over 90/km hour
colors : black-black, black-red, black-green

characteristics :
handle bars in two pieces, in between a die-cast part with 'Sparta', front and back hubs with axle-shafts, big mudguards with streamlined ends, toolbox in the petrol tank with 4 strips on the cover, petrol tank with sunk 'Sparta' knee-grips and 'Sparta emblem',chain case in two parts (above and under), brake rod on the back brake, two exhaust pipes with long exhaust silencers, number plate holder with Sparta emblem under the number plate (the same as on the petrol tank), jiffy.

chrome plated :
handlebars, exhaust, bottom end of the front fork, top end of the suspension behind, petrol tank, rims, strips on the cover of the toolbox, headlamp rim, handlebars.

accessories :
single seat for passenger, buddyseat, foot rests for passenger, chromed crash bar with protection plate, middle-stand

amount produced : about 1.600

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