1985 BMW K100RS - M Motosport 

The K75s and the K100s are the best bikes BMW ever made imo.

The classic K's are the most reliable bikes BMW ever made, but you have to do the spline lubes and it takes a certain kind of grease. Beemer boneyard can help you with that, and I added Titanium Disulfide powder which I got from a company called Lower Friction. Replace the rubber brake lines with stainless steel braid as the old lines can deteriorate and jam up the calipers, even locking them up so the brakes don't release after you apply the brakes. Also replace all the rubber lines on the motor as those also crack over time causing air leaks. Radiator hoses seem to last forever, but you might want to replace those too. A common problem will be dirty fuel injectors. BMW has a good fuel system cleaner, and you should be using that often, at least every year. Anything with PEA in it should help and I believe Royal Purple has some good fuel cleaner too. The air filters last a long time on these also, being large and well made. Replace the coolant as required. Change oils as required. If you do all that, you will just be buying tires, and batteries, and you can let the miles roll on. They love the interstate, the faster the better, all day long, every day. Real good bikes. You will likely get compliments from people even though the bike is old. Last week a young lady who said she never saw one like that complimented the looks of the bike, which was made long before she was born. And don't forget to change the brake fluid. You don't want to have to buy new brake cylinders. Parts are expensive. You just won't need to buy many is all.

I'm getting one in two days !!!, can't wait 😊

RS is for Road Sport, Not Rallye 🤣

I lusted over a K100RS big-time when they were released. They were revolutionary for BMW at the time. My friend has a K75 with over 400k and the original internals. Final drives were an issue, though.

Beautiful bike, well taken care of and has many more miles left on it.

85 is a 8 valve not a 16!!! And has lt bars on a rs

Thats a beautiful bike!!! The color is on deck!!!

love the "older" 4cyl sounds

The gas tanks are aluminum so you wont see rust in there.

Well, I got the bike yesterday. I have to say that the claims made in the video and in the auction with regards to its condition and how it was maintained, are embellishments. There are missing, broken items that weren't addressed and should have been prior to making the aforementioned claims, or disclosed fully.

This seems more rugged than BMW’s current crop of bikes

awesome bike, but the information about the engine is not true. This engine derives from a peogot 104 and not from the bmw cars. the fuel injection system was borrowed from inhouse car development.

1:24 - 8 valves. 16 valvers came in the early '90's ;-)

Выключите дальний свет! И укомплектуйте мот родными деталями, а то там половина от RS, половина от LT

I’m gonna buy a 1991 K75s next week! it’s a really reliable bike and I love the look and character of this machine ! Cheers mate

Why is the instrument cluster not fixed on the front fairing? I looks ugly gauges on the handlebar.

Picked one up yesterday, really enjoying it so far

I had one of these and a K75. If I could have one bike in my life, this is the one.

8 valves, not 16. Great bike!

They d0 have problems the mag wheels are very soft fork seals leak drive shafts are a problem

Has that bike got rt bars on it

the one you are riding is the 8 valve version

The K100 is bulletproof. With normal maintenance the bike will run 400.000 km with ease. Trust me I own one with 260.000 km and still going strong. In 20 years they will be expensive. Iconic and solid as steel German bike.

I bought a k100 LT for £650 and took it 3500 miles across Europe. What an awesome machine 👍👍👍

Damn , that is like a grail bike for me.

Im getting my mc license this summer and im gonna buy a k100RS as my first bike

Is this bike actually reliable like a Japanese bike? I find that extremely hard to believe. Certainly not cheap to maintain and repair, right?

A great video about a great motorbike. But, this 8-valve, Road Sport Beemer, looks like an '85 not '83. Handlebars look a bit wide to be RS-handlebars. I do not know shit about these bikes, but still.

Gas mileage will depend on rpm. Through Montana interstate the mileage will be much lower. The first indication of dirty injectors will be poor gas mileage, then low rpm stumble, then hard starting, then if you don't do anything, eventually it will barely run.

I rode an 85 k100 for 347 thousand kms. Most reliable motorcycle I ever owned. Not perfect but very comfy and reliable.

As you said way “ahead of there time “ I was lucky enough to own one in my early 20s back in 86

Thats not a Motorsport model. its an ordinary RS.

is it for sale?

My 1990 k1 RS has 106k and is still killing it

Just bought a k1100 with 63,000 miles. 🎉

Beautiful BMW guys looks like a brand new one to me. Hope all is well with you guys and you're all in good health take care and happy holidays to you Ken and your entire family!

I still have my eyes open on your auctions. 🤓👉🏍👈👀 Hey Ken, What kind of octane booster do you use & recommend for your Harley? Is it true 10% ethanol gas starts to varnish & rust your tank in 3 wks.? Thanks friend. 😎👍

Are these good bikes i found one for 300 dollars mint condition runs and rides awesome

Bmw Status!!!

🏍️

How do these handle in corners. Wondering if its a good choice for riding with a club. Obviously handling is key for club safety

It’s coming to Canada!

i never trusted the single sided swingarm

how to get one india

fun fact: it's a Peugeot 101 engine