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K100-forum.com » Technical, repair and troubleshooting » Engine and transmission » K 100/2 in k 75 frame. Is it possible?

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nino

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Here in Croatia guy sells K 100/2 1989. Bike looks perfect, but he admitted that the frame was from 75/2. So he advertised lower costs of registration, etc. I answered that frames were not interchangeable, but he said it were on limited series. I dont believe, maybe with grinder and welder.
Any expert to explain?

    

Arlina

Arlina
Moderator
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nino wrote: but he said it were on limited series.
Never heard of.....
Grinder/welder thing I think.


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K 100/2 in k 75 frame. Is it possible? Eu-log10  K1100RS/LT - R1200RT - R1100RS - Cagiva SST 350 Ala Verde - K75LT project - K75 Schurgers - K75S - K1100RS - K75RT - K75C
    

duck

duck
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A VERY limited edition: zero. Very Happy


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Current stable:
86 Custom K100 (standard fairing, K75 Belly pan, Ceramic chromed engine covers, paralever)
K75 Frankenbrick (Paralever, K11 front end, hybrid ABS, K1100RS fairing, radial tires)
86 K75C Turbo w/ paralever
94 K1100RS
93 K1100LT
91 K1
93 K75S (K11 front end)
91 K75S (K1 front end)
14 Yamaha WR250R
98 Taxi Cab K1200RS
14 K1600GT
http://www.ClassicKBikes.com
    

Rick G

Rick G
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Walk away from it Nino it would/could be more trouble than a bag full of snakes.


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"Man sacrifices his health in order to make money.
Then he sacrifices money to recuperate his health.
And then he is so anxious about the future that he does not enjoy the present; the result being that he does not live in the present or the future; he lives as if he is never going to die, and then dies having never really lived."   Dalai Lama


Bikes 1999 K1100 LT with a Big Block 1200
    

Suzi Q

Suzi Q
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I dunno, a K100 registered as a '75 (which is what it sounds like) would be cheaper to insure & tax  Laughing

Now the really daft thing, would be to do it the other way round and put a K75 in a K1100 frame..... Rolling Eyes


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Sometimes I'm not really Suzi Quatro.
    

92KK 84WW Olaf

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While the frames are broadly similar the engine mounts and gearbox mounts are all the exact same locations except the front ones....because the K75 engine is shorter the loss of the front cylinder means the front down tubes are different.....longer and raked back more to pick up the shorter K75 engine. If you look at a photo of a K75RT and a K100RT/LT you can see how the fairing '[same on both bikes] has a big space under the radiator part due to the shorter engine.

Fair bit of trickery involved.

Also K75 has a steering damper in the stem, not sure how you work that out.


__________________________________________________
1992 K100LT 0193214 Bertha Blue 101,000 miles
1984 K100RT 0022575 Brutus Baja Red 578 bought 36,000 now 89,150 miles
1997 K1100LT 0188024 Wotan Mystic Red 689 58,645 now 106,950 miles Deceased.
1983 K100RS 0011157 Fricka 606 Alaska Blue 29,495 miles Damn K Pox Its a Bat outta Hell Now 58,200 miles. 
1996 K1100LT 0233004 Lohengrin Mystic Red 38,000 miles currently 51,800 miles.
1983 K100RS 0004449 Odette R100 colours 58,000 miles. Sprint fairing now 63,390 miles

Past:
1968 Yamaha 80 YG1
1971 Yamaha 125 YAS-1
1968 Honda 125 SS
1970 Honda CD 175
1973 Honda CB500-4
Honda CX 500
    

AL-58

AL-58
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My '87 K100RT was registered as a 98.7cc motorcycle when I bought it. Cheap annual registration.

Al


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'93 K1100LT
'08 F650GS (798cc)
'19 R1250RS
+ another boxer engined motorcycle and sidecar

"When I'm too old and too foolish to handle a sidecar I'll buy a Sportsbike"

K 100/2 in k 75 frame. Is it possible? K-dogs10
    

Chocolate

Chocolate
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Could be that he has only changed the number plate !?
Anyway very strange.

Cheers 

K 100/2 in k 75 frame. Is it possible? 17036410
K 100/2 in k 75 frame. Is it possible? C239fe10


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Only a few activities make me experience my senses in a way motorcycle riding does, it is like swimming in the nude in a river.
K75 BA/1992 ABS, K75 BA/1991 noABS, Ducati, Mobylette M1/1973
    

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