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 JakeF
When reinstalling the plate that holds the steering damper do the teeth go towards the higher forward position or...
Last updated: 4 days 37 min ago; 2 Replies
by JakeF
I replaced the throttle cables and the grip only wants to rotate at most 1/4 turn. I know that can't be right. I...
Last updated: 2 weeks 4 days ago; 2 Replies
by Luca
Hello,i replaced in my R90s, valves guides,pistons rings and honed the cylinders, since the engine had low compression...
Last updated: 2 weeks 5 days ago; 9 Replies
by Motorman2061
Howdy R90Sers, Took a 2500 mile trip on my "new" R90S home without a tank bag, so now I think I need one. Just a handy...
Last updated: 2 weeks 6 days ago; 3 Replies
by Motorman2061
Howdy All Looking for recommendations for a good Airhead mechanic for my R90s Preferably in the area north of Seattle....
Last updated: 2 weeks 6 days ago; 2 Replies
by sblaylock
I'm helping a friend tuneup his newly acquired R90S and have noticed there are three lines associated with the "S" mark...
Last updated: 2 weeks 6 days ago; 4 Replies
by JakeF
I am reassembling the choke after replacing the cables and I am having a challenge. When I took it apart there was a...
Last updated: 2 weeks 6 days ago; 1 Replies
by Motorman2061
Howdy R90Sers, Had my R90S out for the first time tonight. Noticed on the way home from a restaurant that The bulb for...
Last updated: 3 weeks 22 hours ago; 3 Replies
by Motorman2061
Howdy R90S Lovers Just wondered if you have added a GPS to your R90S ??? If you have I would love to see how you did....
Last updated: 3 weeks 3 days ago; 6 Replies
by SteveH
I have taken off the original side stand from my 75 R90s It has been painted black and looks horrible and i want to...
Last updated: 3 weeks 5 days ago; 9 Replies