1973 CZ 400cc Type 981 Down Pipe Aluminium Tank
1973 CZ 400cc Type 981 Down Pipe Aluminium Tank
This is a bike from a test series from the CZ factory. The piston is the same as on the 380cc, but with a longer stroke which gives 400cc. 36mm Mikuni carburetor as it was on competition bikes. New Metzler tires. 80/100-21M/C 51R MST MC4 Front. 100/100-18 NHS MC4 Back. Adjustable spring. Updated swinging fork for better stability.
KONI rear springs.
It is “ready for race” and approved according to international and Swedish regulations.
Technical information
Engine: in new condition. 5 barrels. Full around crankshaft for higher compression. Piston 80.00 stroke 78. Modified control lever and starter lever
Gearbox: Modified ratio. 4 Gears
Fuel tank: CZ Alloy 2.11 gallon
Carburator: Mikuni VM 36
Airfilter: Twin Air
Front fork: 180 mm front wheel travel. 4 Bolt bottom support. Spring adjustable in 3 positions. Plug for change of oil. Extra scrape rings. Fork boots to protect carrier tube
Front wheel: Rim alloy VM-1 extra strong, New Metzler MC 4 80/100 x 21. Tube extra strong. Magnesium hub 180 mm brake. Front brake wire 2.5 mm. Tube 8 mm improve brake effect
Rear wheel: Rim alloy VM-3. New Metzler MC 4 100/100 x 18. Tube extra strong. Magnesium hub 180 mm brake. Spokes 4 mm with steel nipples and in 2 cross.
Front mudguard: CZ original extra wide. Soft plastic
Rear mudguard: White plastic
Handlebar: CZ original with loose holder. Height 117 cm
Rear spring: KONI
Saddle: Harder rubber. height 90 cm
Twistgrip: Gunnars quick throttle original
Chain: CZ original Type 520 H Cross. Chain adjuster roll upper and down
Frame: 1973-74 Chromolyden steel tube. Modified brake lever and brake tie-rod. Rocker grease nipple. Lock plate for rocker plug. Holder on back frame for stronger saddle mounting. Modified footrest.
Nuts: All with nylonlock
Weight: 102 kg
Extra: Sprocket 13 t, 14 t, 14 t original. Tool kit. Service manual. Spare part catalogue. Mikuni super tuning. Stand.
Call us
(Technical questions are answered by phone)
Phone: +46-8-974050, Fax: +46-8-972090
Opening hours
(CET)
Monday – Friday 08:00 – 16:45
Saturday, Sunday closed.
Lunch: 11:00 – 12:00
Visit us
StiBo Motor
Altartorpsvägen 3, 141 70 Segeltorp
(Stockholm) Sweden