Author Topic: New Member From Virginia USA and Possible New K100RT Owner  (Read 11527 times)

Offline Jackstand Johnny

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New Member From Virginia USA and Possible New K100RT Owner
« on: September 18, 2016, 01:04:35 AM »
Howdy folks, my name is Jackstand Johnny. I live on the East coast of the US and Ive spent the last decade building, riding, buying, selling and loving motorcycles. Ive built and ridden mainly only streetfighters. My last being a 2000 Suzuki SV650 that I crashed back in 2012. The crash broke a lot of bones and cost me 80% of my left leg, so thats the last time I rode a motorcycle. I spent the following years until now very slowly rebuilding my beloved L twin streetfighter and have not given up on my dream of riding again. I recently was finally able to purchase a Kliktronic electric push button shifter kit that will go on whichever bike I buy or build first. Now that Ive introduced myself, I wanna talk about BMWs!

So Ive always been fascinated and in awe of BMW motorcycles. My Father rode a 70s K75(I think it was) as a young man and I just started negotiations with a Gentleman selling a project 1985 K100RT thats in need of some love and attention. Im researching these bikes now in the hopes that it can be made into what I need. Low center pf gravity, reasonably lightweight, reliable and of course custom. If I can afford and justify the price of this K100RT, my dream would be to turn it into a cafe racer inspired naked bike with USD front end, lighter and/or wider wheels, custtom subframe and seat and upgraded components all around. Ill ask around in some other threads but for now maybe someone can chime in and tell me if Im barking up the wrong tree? Ive seen the build threads and pictures...something tells me Im into something good. Thank yall for having me here. Sorry I dont have a Beemer to show you, but heres a couple shots of the SV650 I built before I crashed it:



  • Virginia, USA
  • 2000 SV650

Offline Martin

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Re: New Member From Virginia USA and Possible New K100RT Owner
« Reply #1 on: September 18, 2016, 01:56:07 AM »
Welcome to the asylum from OZ.
  • North Lakes Queensland Australia
  • 1992 K75s Hybrid, Lefaux, Vespa V twin.

Offline Jackstand Johnny

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Re: New Member From Virginia USA and Possible New K100RT Owner
« Reply #2 on: September 18, 2016, 03:02:20 AM »
Thanks buddy! I hope I can snag a Beemer soon and show yall what I can do!
  • Virginia, USA
  • 2000 SV650

Offline duckytran

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Re: New Member From Virginia USA and Possible New K100RT Owner
« Reply #3 on: September 18, 2016, 12:09:20 PM »
Welcome! Very nice work on the SV650. The K-Bikes are heavy bikes in my opinion. I've had 4 knee surgeries on my left leg and it's about 60%. I'm very cognizant about leaning my bike too far left. Check out Mike Flores K100 project. He has a nice USD setup. Good luck!
  • Austin, Texas
  • 1993 K75, 1981 R65
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Offline Brad-Man

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Re: New Member From Virginia USA and Possible New K100RT Owner
« Reply #4 on: September 18, 2016, 12:23:06 PM »
WelKome!
  • Marietta, GA
  • '85 K100
Toys don't make the Man - Man makes the Toys...
'74 RD350
'75 RD350 w/Modified 400 engine, Chambers & MZB iggy

Offline Jackstand Johnny

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Re: New Member From Virginia USA and Possible New K100RT Owner
« Reply #5 on: September 18, 2016, 12:37:40 PM »
Thank you! Yes I agree these bikes are very heavy in stock form. My hope would be to remove as much weight as possible without having to scavenge for an ounce at a time with titanium hardware and going crazy like that. Im also hoping that these have a low center of gravity or at least they are capable of having a very low center of gravity because of the engines orientation, and how low the drivetrain(shaft/hub/etc) and the exhaust are.
  • Virginia, USA
  • 2000 SV650

Offline K1300S

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Re: New Member From Virginia USA and Possible New K100RT Owner
« Reply #6 on: September 18, 2016, 01:08:21 PM »
hard to make a K light.....big heavy engine and trans, heavy steel frame, etc.   is this thing gonna ever see a track where you are looking for getting that last tenth of a second off a lap time?  if not, then there is really no point in doing exotic things to try to make it light.  it is what it is.   a brick.

virginia is a big place....where in va?
Project Thread "K75s Midlife Refresh"
http://www.motobrick.com/index.php/topic,7810.0.html

Offline Jackstand Johnny

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Re: New Member From Virginia USA and Possible New K100RT Owner
« Reply #7 on: September 18, 2016, 01:15:34 PM »
If it ever does see a track it wont be my riding it. The weight reduction would be solely to make it easier on me to handle since I will only be able to use my right leg at a stop. Im near Busch Gardens. I see youre in Alexandria. I lived in Lorton for a short while and used to frequent Alexandria. I actually worked at the Harris Teeter on Duke Street. That was many many moons ago. Id love to find out what these custom K series cafe and streetfighter builds weigh. Again, Im not too cocerned with its weight as long as its weight iscarried way down low. I figured the K100 with the right modification would have a very low CoG because the exhaust, driveshaft and cylinder head etc are so low to the ground. Can you speak on that?
  • Virginia, USA
  • 2000 SV650

Offline The Dude

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Re: New Member From Virginia USA and Possible New K100RT Owner
« Reply #8 on: September 18, 2016, 04:20:14 PM »
Welcome Jackstand.
Economobiles devoloped in the eighties were a successful development of the Brick.No legs needed for these.https://peraves.wordpress.com
All the best.
  • Auckland, New Zealand
  • K75s
Current.
TR6R 1973 from new.
Moto guzzi 850 III .1983 from,almost, new.
K75S 1986 from new.vin-0103141
On my second millionth km.give or take a hundred k Kay's.
"The Dude abides. I don't know about you but I take comfort in that. It's good knowin' he's out there."
All the best!

Offline Jackstand Johnny

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Re: New Member From Virginia USA and Possible New K100RT Owner
« Reply #9 on: September 18, 2016, 06:22:10 PM »
Hahaha thanks for the link. Ive seen those before. Ironically I was just talking to my friend today about building some kind of automatic "landing gear" which would essentially be a bipod or 2 legs that when the bike stops, would pop out with an actuator of sorts and keep the bike upright, like a temporary center stand. Then when I get moving, they would flip back up plane to the frame.
  • Virginia, USA
  • 2000 SV650

Offline Laitch

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Re: New Member From Virginia USA and Possible New K100RT Owner
« Reply #10 on: September 18, 2016, 06:52:18 PM »
Im also hoping that these have a low center of gravity or at least they are capable of having a very low center of gravity because of the engines orientation, and how low the drivetrain(shaft/hub/etc) and the exhaust are.
According to a comparison of BMW specs from Phil Hawksley's site with SV650 specs from MCS and Wikipedia, a naked K100 weighs almost 100 lbs more than a naked SV650 and carries the weight almost an inch higher from the ground. The K100 fuel tank holds approximately a gallon more fuel than the SV.
  • Along the Ridley in Vermont.
  • 1995 K75 102,000 miles

Offline Jackstand Johnny

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Re: New Member From Virginia USA and Possible New K100RT Owner
« Reply #11 on: September 18, 2016, 07:55:59 PM »
Thank you for looking that up. I also looked i to that. I was able to shed a fair amount of weight off my SV and it was my hope to do the same with the K100. The big question as far as weight is, how far off the ground the majority of the weight? I DO have my reservations about taking on this massive bike. My biggest reservations lie with all the proprietary components on the K100. From what Ive read the K100s parts and systems are more like a car than a motorcycle. Ive learned that its much more difficult to replace things on the K100 like the gauges, switchgear, etc because of how theyre wired in together. Its a shame that such complicated electronics went into this bike because I love the engine and drivetrain so much.

If I cant get this K100 for cheap enough, Ill get a BMW sooner or later.
  • Virginia, USA
  • 2000 SV650

Offline Laitch

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Re: New Member From Virginia USA and Possible New K100RT Owner
« Reply #12 on: September 18, 2016, 08:18:23 PM »
Its a shame that such complicated electronics went into this bike because I love the engine and drivetrain so much.
It's not a shame for those of us who appreciate how well it works when it's used as intended.
  • Along the Ridley in Vermont.
  • 1995 K75 102,000 miles

Offline Jackstand Johnny

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Re: New Member From Virginia USA and Possible New K100RT Owner
« Reply #13 on: September 18, 2016, 09:55:12 PM »
No need toget defensive. I dont know how many people expect such complicated electronics or anything in general to function properly after 30+ years, whether they were used as intended or not. Especially when said electronics are famous for failing like the gauges, speed sensor etc with the K bikes specifically. My point is that this bike has a lot of components inlike any other bike, whereas Ive found that a majority of any given type of bike can be swapped over or at least share many characteristics. Id also say that is really IS a shame for a lot of people about the components on the K100 because a LOT of people set out to customize them and run into these same problems. It should also be noted that a reason why so many of these get chopped up and modified is because they are in a desperate state so it makes just as much if not more sense to replace the stock parts with better, simpler or more commonly co patible parts. So it may not be a shame to guys who are happy with their bikes exactly as they came from the factory, but for a lot of us it really is unfortunate.
  • Virginia, USA
  • 2000 SV650

Offline Laitch

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Re: New Member From Virginia USA and Possible New K100RT Owner
« Reply #14 on: September 18, 2016, 09:57:20 PM »
No need toget defensive.
I have an unmet need to get defensive and this is how I fulfill it. Thanks for helping!
  • Along the Ridley in Vermont.
  • 1995 K75 102,000 miles

Offline jaxon

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Re: New Member From Virginia USA and Possible New K100RT Owner
« Reply #15 on: September 19, 2016, 12:05:45 AM »
Things to consider. So I could have got a newer anything as far as a bike goes. I lurked around forums and did a little research. Yea many Bricks don't have fuel gauges, temp gauges but a little time and money can add those. I wouldn't mind an Arduino mod for a speedo, fuel gauge, tach but I'm focused on standard operation. I've seen aftermarket parts for Cafe's but to me it would end up costing more to do that in the long run.

These bikes do have idiosyncrasies, like anything. The good thing is a crapton (Metric crapton, not imperial) of original parts are available for the K-Bikes. The options available on motorcycles in general caught on for other brands much later. I lean more toward the original look and function of the K-Bike rather than Cafe bikes although some are quite nice. I do understand why Bricks are being built as Cafe Bikes. The engine looks especially agressive in those configurations. Stock, I've gotten more than a few compliments. BMW made quite an attractive bike and, in my opinion is a timeless design. One guy here built a Cafe from a brick in classic black with really cool pinstripping. It looked as thought it could have been a bike built by BMW in the 50's in an alternate universe.

I've gotten more "operationally" familiar with this bike that I have others I've owned (Harley, BMW, Honda). I've seen a lot of bikes with low miles that sit and a lot that's ridden past other bikes by a factor of ten. I note a lot of people that love them have a couple. I can see why. I wouldn't mind another when ones down for maintenance.

Of course they are other alternatives to fuel pumps and injectors as well as creative fixes for speedos etc. There are cost factors in getting a  new OEM fuel pump but there are options. Your right, odo's can be Frodo's and getting aftermarket gauges can limited and costly in time and money.

I know there is a realm of people wanting to put their mark and customize bikes, more power to you, but maintaining a original configuration can be just as rewarding. Check out the Father and Son team that fully restored a K75. It's a beauty.

Not to be a critic, but the general rule of thumb is conversions are going to cost you time and money and you'll be lucky to recover the cost unless Jay Leno falls in love with it. Stock wins every time.

I'm 52, too old to be anything other than practical "for me." Harley was slow to innovate and Japanese are too quick in innovation and often have really short model life in comparison to others.

I wish you good luck on the project. The only thing that matters is what makes you feel good. Whatever you get and decide to do with a K-Bike it has already stood the test of time, but maybe not the previous owners neglect. That is why people are buying rubber, cleaning tanks and flushing radiators etc. That and age, which gets worse for the next owner if neglected.
  • Indiana
  • '92 K75S, '17 R1200GS LC
--
This space for rent

Offline TrueAce

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Re: New Member From Virginia USA and Possible New K100RT Owner
« Reply #16 on: September 19, 2016, 01:05:47 AM »
Welcome! The bike you posted is very sharp. One observation is the shorter wheelbase in comparison to the K75, which will negatively impact handling. The second is weight......the K75 has a heavy motor, stout frame, high & heavy gas tank, and is all-around heavier bike that most street-fighters that come mind. It would not be my first choice for a street bike.
  • Florida
  • '85 K100GS, '85 K100RSSC,', '94 K1100RS,'10 S1000rr,'14 Ural Sidecar, '15 R Nine T

Offline The Dude

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Re: New Member From Virginia USA and Possible New K100RT Owner
« Reply #17 on: September 19, 2016, 02:33:08 AM »
Welcome! The bike you posted is very sharp. One observation is the shorter wheelbase in comparison to the K75, which will negatively impact handling. The second is weight......the K75 has a heavy motor, stout frame, high & heavy gas tank, and is all-around heavier bike that most street-fighters that come mind. It would not be my first choice for a street bike.
+1
The Brick's a street tank.It's for the open road.You'd be taking it in the wrong direction wrt. it's design intent.The weight is built in,perhaps in homage to durability.
Have fun,anyway.

  • Auckland, New Zealand
  • K75s
Current.
TR6R 1973 from new.
Moto guzzi 850 III .1983 from,almost, new.
K75S 1986 from new.vin-0103141
On my second millionth km.give or take a hundred k Kay's.
"The Dude abides. I don't know about you but I take comfort in that. It's good knowin' he's out there."
All the best!

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