Production Model Years
1974 - 1976
Frame and Engine Numbers
4070001 - 4075054
4080001 - 4084675
4090001 - 4093724
4950001 - 4951005
4980001 - 4981738
4990001 - 4991260
———
4070001 - 4075054
4080001 - 4084675
4090001 - 4093724
4950001 - 4951005
4980001 - 4981783
4990001 - 4991260
Model Specifications
Drivetrain
Displacement 898cc
Cylinders 2
Bore x Stroke (mm) 90 x 70.6
HP @ RPM 67 @ 7000
Compression Ratio 9.5:1
Valves OHV, 2 per cylinder
Clutch Dry, single plate, cable operated
Transmission 5 speed, foot shifted
Final Drive Driveshaft
Running Gear
Frame Tubular steel double cradle
Front Suspension Hydraulically damped telescopic fork
Rear Suspension Twin shock swingarm
Front Brakes Dual ATE 260mm disc with single piston
Rear Brakes 200mm drum, single leading shoe
Electrical
Ignition Battery/coil
Spark Plugs Bosch W5DC
Generator Bosch G1 14 13V 21A 280W
Capacities & Measurements
Weight 220kg
Fuel 24l
Wheelbase 1465mm
Top Speed 200kph
Number Produced 17465

Serial numbers in 4070001 - 4093724 were delivered outside the US; 4950001 - 4991260 were US only.

Comments

My new Bike

boxertwinjeff's picture

Hi People, I'm new to this site. I recently purchased this '76 R90S on Ebay, and awaiting shipment from California to Brisbane.

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Got the same one,

mdeere's picture

Hi Jeff,

I have the same model, same colour here in Singapore just imported from Malaysia, I bought it originally in 2010 from UK chassis # 4093703, June 1976, great bike!

Regards, Mike

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Got the same one,

mdeere's picture

Hi Jeff,

I have the same model, same colour here in Singapore just imported from Malaysia, I bought it originally in 2010 from UK chassis # 4093703, June 1976, great bike!

Regards, Mike

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Got the same one for sale R90S

guest's picture

I have an early 1974 chassis # 4071418 for Sale same colors $9800.00 631-645-6952 Werner

1976 R90S for sale

Nickdbomb's picture

I have one for sale with 28,985 miles located in the SF bay area
Matching numbers excellent mechanical condition
Everything works even the clock
If someone prefers spoked wheel, I can swap the Lesters that are on it for ones with SS spokes
http://sfbay.craigslist.org/sby/mcy/5586720024.html
Nick
408 201-4070

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New R90S for me

John S Freeman's picture

Purchased a 1974 R90S in October. Just got it back on the road, had not been ridden in 8 years, just in time for the winter storage season in Kansas. Silver Smoke, 20k miles. Loving it.

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