The New BMW R90S Site

Welcome to the new R90S Website!

This is the new location for R90S.com, 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.

1974-1976
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
by asbestospenguin
So I had plans to ride my R90S today. Had, because the electrical system was completely unresponsive this morning....
Last updated: 5 days 55 min ago; 6 Replies
by JakeF
My gauge cluster is shot. I can get a working one off a 1978 R80. It looks the same. Is it the same part as on a...
Last updated: 1 week 2 days ago; 3 Replies
by lauffer6996
Non original color but well done in original fade to silver, check Austin craigslist. Scott
Last updated: 1 week 3 days ago; 3 Replies
by skychs
Yesterday I went to see a 1975 R90S that was totally disassembled and in boxes. All the parts are there, mostly...
Last updated: 5 weeks 4 days ago; 9 Replies
by skychs
It will soon be time to buy a new exhaust for my 1975 R90S. Searching the internet is driving me crazy. Stainless...
Last updated: 6 weeks 6 days ago; 3 Replies
by Wynand
https://www.facebook.com/FDClassicWorx/photos/pcb.1704442239641643/17044...
Last updated: 8 weeks 6 days ago; Replies
by UAV_Pilot
I have a '74. A Lot (20+) years back my mechanic pulled & reput the heads, can't remember why. Shortly thereafter,...
Last updated: 9 weeks 3 hours ago; 3 Replies
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: 10 weeks 1 day ago; 9 Replies
by brumohr
New to this forum but have already appreciated some great info posted here, THANKS! I have started a youtube playlist...
Last updated: 11 weeks 1 hour ago; 2 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: 12 weeks 2 days ago; 1 Replies