The New BMW R90S Site

Welcome to the new R90S Website!

This is the new location for, which has become a part of the Vintage BMW Motorcycle Owners (VBMWMO) website. This R90S homepage is your portal to news, information, comraderie and help with the BMW R90S motorcycle, produced from 1974-1976 in TT Silver Smoke and Daytona Orange paint.

If you're an existing member of the R90S forum, you'll find that your account has been moved over, and any posts you may have made are now a part of the VBMWMO Forum. To login, just click on the login link above on the right, in the banner.

We also suggest that you visit the home page of the R90SWorldNet mailing list, where you can find a huge amount of detail and information about this special model.

Model Specifications
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
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
by bmwsog
The headlamp chrome ring on many /6 bikes does not have the tightening /retaining screw located at 6 o'clock on the...
Last updated: 6 hours 2 min ago; 0 Replies
by thunderbolt
anyone know about bad diode boards what a good replacement
Last updated: 1 day 17 hours ago; 2 Replies
by p_reale
I thought it would be fun to see which of the to R90S's is preferred by the group. I puzzled on it long and hard and...
Last updated: 2 weeks 5 days ago; 16 Replies
by Al d
My uncle has had a 75 smoke R90S since new. It has a whopping 6500 original miles on it.
Last updated: 3 weeks 1 day ago; 5 Replies
by captstevens
I'm. In the process of restoring a 1975 R90S that I sold 31 yrs ago. I can't get one of the finned exhaust nuts loose,...
Last updated: 5 weeks 13 hours ago; 5 Replies
by bix49
I have a 1st series R90s fairing with windscreen, in original factory smoke silver with the adhesive gold pinstripes....
Last updated: 8 weeks 1 day ago; 6 Replies
by boxertwinjeff
Hi, will be checking out a 75 DO in a few weeks time, which has apparently sat in a shed for 15 years & not started...
Last updated: 11 weeks 2 days ago; 2 Replies
by DatOrg7590
...and a good time was had by all.
Last updated: 11 weeks 3 days ago; 1 Replies
by jburks88
Hey guys, I am a new member here and was wondering if anyone might have the production numbers for the R90's. I got...
Last updated: 11 weeks 6 days ago; 1 Replies
by SteveH
Has anybody replaced the seals on the hydrolic steering damper ? My damper is not working, ive moved the outer "sleeve...
Last updated: 12 weeks 3 days ago; 4 Replies