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 asbestospenguin
Over the weekend I had the pleasure of rebuilding my right carb. By all appearances, it went well. The leak was fixed...
Last updated: 2 hours 9 min ago; 7 Replies
by skychs
The clock on my R90S is off by 15 minutes every week. Is there anything you can do to adjust the rate of time on the...
Last updated: 3 hours 9 min ago; 1 Replies
by LastEdition
Hello everyone, here's a summary I've organised for all the stickers that were on board on the legendary R90S, I've...
Last updated: 1 day 15 hours ago; 1 Replies
by jrsbike
Well I finally got to the front end of my long long 1974 90S rebuild project. I got a fork rebuild kit from Hucky's...
Last updated: 1 day 22 hours ago; 2 Replies
by asbestospenguin
So I;'m happy to live in the greatest neighborhood ever. One where your across the street neighbor is a BMW motorcycle...
Last updated: 4 weeks 1 day ago; 6 Replies
by wolds
Working on a friends R90 and managed to lose spring/clip that keeps parking bulb in housing. Anyone have a picture of...
Last updated: 5 weeks 5 days ago; Replies
by Heeno
Happened upon this '76 R90S. Stored 22 years, not running. Love to show it off, but... Can't post a frick'n picture
Last updated: 6 weeks 1 day ago; 1 Replies
by skychs
Last month I finally picked up the bike of my dreams ... a 1975 R90S. It was a one owner bike purchased from the Mid...
Last updated: 6 weeks 3 days ago; 98 Replies
by tobydog61
Would anyone have the screw that holds the time change adjustment knob onto the back of the Motometer clock? Mine fell...
Last updated: 8 weeks 4 days ago; 7 Replies
by skychs
1975 R90S Its time for fluids. Sensitive topic I know .... so lets not go there. Im just curious what everyone is...
Last updated: 9 weeks 3 days ago; 9 Replies