Author Topic: 1976 Kawasaki KD-400 Prototype with Disc brakes  (Read 4704 times)

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Offline kdx Geoff

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1976 Kawasaki KD-400 Prototype with Disc brakes
« on: April 09, 2014, 09:09:34 am »

http://www.classicjapcycles.com/articles/the-1976-kawasaki-kd-400



The 1976 Kawasaki KD-400

  This conversation has been had more than once, and with no proof, couldn't be settled.....until now. Kawasaki had built an open class 450cc enduro machine in the early 1970's, known as the Baja 450. it sported a hand built chassis and various components from both Kawasaki, and the After market world. That bike lived a short life and was never put into production. Then in 1976, Kawasaki built a rumored six of what they called the KD-400. The KD models included versions in 80cc, 100cc, 125cc, and finally in 175cc, all of which were in mass production.


    The idea was to build a more modern enduro bike but first, how would it perform, and would it sell? A hand full were built, one of which still survives. As the story goes, it was sent to a dealer in the United States for evaluation, and he kept it until recently, when it resurfaced. It has changed hands twice now and apparently, no spare parts are available...no surprise as prototypes are special.


    At the time this bike was being tested, Suzuki was about to release their  model PE-400, and Yamaha had already began production on their model IT-400, both of which were light years ahead of the KD-400 with the exception of the KD's disk brakes, and hence why it never made it to production. A few years later Kawasaki did produce the model KDX-420, which was much more in line with its competitors. Pics of the KD-400 are below thanks to John Laurent.






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Simo63

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Re: 1976 Kawasaki KD-400 Prototype with Disc brakes
« Reply #1 on: April 09, 2014, 09:27:07 am »
Wow how cool is that. Disc brakes on a Japanese dirt bike in the mid 70's .... Awesome  :)

Offline BigBanana

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Re: 1976 Kawasaki KD-400 Prototype with Disc brakes
« Reply #2 on: April 09, 2014, 10:53:48 am »
At the 1973 ISDT in the US, there were (I think) three KX450 based Prototype Enduro bikes.

"In 1973, the International Six Day Trials (ISDT) was held on American soil for the first time in Berkshire, MA. This Kawasaki KX450 ISDT bike - a year of rigorous engineering in the making - was the first to use disc brakes, an air intake system integrated through the gas tank, and mag–type wheels."

« Last Edit: April 09, 2014, 10:56:23 am by BigBanana »

Offline BigBanana

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Re: 1976 Kawasaki KD-400 Prototype with Disc brakes
« Reply #3 on: April 09, 2014, 11:04:24 am »
I don't know what went wrong with photobucket.

Offline John Orchard

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Re: 1976 Kawasaki KD-400 Prototype with Disc brakes
« Reply #4 on: April 09, 2014, 11:04:28 am »
Now if I was to roll-up to a Pre 78 race with a KD400, Yankee 500 or Rokon disc brake would anyone say anything?
Johnny O - Tahition_Red factory rider.

Offline kdx Geoff

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Re: 1976 Kawasaki KD-400 Prototype with Disc brakes
« Reply #5 on: April 09, 2014, 11:19:14 am »

Now if I was to roll-up to a Pre 78 race with a KD400, Yankee 500 or Rokon disc brake would anyone say anything?

They're mechanical actuation.....l wonder how well they work. You might be better off with drums  :)

The KX450 ISDT bike looks hydraulic.
« Last Edit: April 09, 2014, 11:23:02 am by kdx Geoff »
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Offline mustanggrahame

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Re: 1976 Kawasaki KD-400 Prototype with Disc brakes
« Reply #6 on: April 09, 2014, 11:22:06 am »
No problem for pre 78 but no go in EVO.
RT1, DT1F, MX100A, TY80A, YZ80D, DT125E, CR125RE, 1982 KTM125RV, 1985 Can Am ASE, 1989 YZ250WR, 1991 YZ250WR

Offline Slakewell

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Re: 1976 Kawasaki KD-400 Prototype with Disc brakes
« Reply #7 on: April 09, 2014, 03:11:08 pm »


5 years to late would have been perfect in 73. A bit like there 4 stroke 450 they built prototypes for but were to late to the market.
Current bikes. KTM MC 250 77 Husky CR 360 77, Husky 82 420 Auto Bitsa XR 200 project. Dont need a pickle just need to ride my motorcickle