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 skychs
1975 R90S I ordered a new clutch kit from Bob's BMW. It comes with just about everything I need except the flywheel....
Last updated: 2 weeks 3 days ago; 7 Replies
by skychs
1975 R90S I rebuilt the front forks when I restored the bike two years ago. Not really knowing anything about these...
Last updated: 3 weeks 3 days ago; 9 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: 6 weeks 2 days ago; 2 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: 13 weeks 2 days ago; 5 Replies
by RickR90s
Early on in the ownership of my '74 R90s, I was stupid and replaced the original Everbest petcocks with Karcoma's. Put...
Last updated: 18 weeks 3 days ago; Replies
by miller7325
Can anyone recommend a painter. I have a 75 Silver Smoke but considering Daytona Orange.
Last updated: 19 weeks 4 days ago; 3 Replies
by RickR90s
I've had this problem for awhile, just feeling like I should finally figure it out. Bike is my mostly orginal '74 R90s...
Last updated: 39 weeks 6 days ago; 2 Replies
by RickR90s
'74 R90s with stock Dellorto's, stock ignition system (points and condenser) Poor or inconsistent idle when warmed up....
Last updated: 40 weeks 2 days ago; 6 Replies
by RickR90s
I've discovered that my left side Dellorto has a vacuum leak where it connects to the intake manifold. Specifically,...
Last updated: 42 weeks 2 days ago; 7 Replies
by lauffer6996
Looking for an S fairing (smoke silver would be nice) appreciate any leads. Scott
Last updated: 46 weeks 4 days ago; 2 Replies