NOS 2.0mm KTM 400 Clutch Plates

[454MRW]

A few years ago I bought a set of ( 2.00mm sintered bronze 1975-79 400 KTM clutch plates on eBay to use for samples to reproduce. I paid $140 plus shipping just to win them at the time, and haven't seen any NOS ones since. I just sent 2 of them off to Roberto Pettinato (Parmabike) to send to 2 sources, one in the US, and one he will take to Italy to find the most feasable manufature to reproduce them, also in different thicknesses for 175's & 250's if possible.
If anyone is interested in the remaining 6 NOS 2.0mm clutch plates, I will sell them for $100 by PayPal including US shipping. Mike
 mrwinter427@hotmail


Michael R. Winter
I enjoy rebuilding and appreciating Pentons!
1974 250 HS Pentons-1980 KTM 175-400'S

[Big Mac]

Mike - Thought they did away with the 400 in '79 and sold only the MC80 420 in the new engine style? Maybe they sold both. These are for the old style 400 motor though?

I believe the '79 420 to '81 495 (type 560?) all used the same clutch plates, differ ones than the earlier motor. Am in need of plates for 420-495 if they can be found.

Jon

[454MRW]

The 420 in 1979 was a late released bike. There were 400's in earlier 79. I don't know the exact cut off date. Probably when they ran out of 400 engines. I have 2 79 manuals, one for the MC80 & GS80 with chassis parts including pipes for the 125/175/250/400 dated January 1979, and a completely separate chassis manual for the 420 MC80 dated May 1979. Sorry, these are the only new clutch plates I have. These 2.0mm thick plates can be combined with other thickness plates to achieve the correct stack height and work in other size KTM engines of the same 1974-79 era. Mike

Michael R. Winter
I enjoy rebuilding and appreciating Pentons!
1974 250 HS Pentons-1980 KTM 175-400'S

[Kip Kern]

Mike

The organic 175 plates were 3.4mm thick and the sintered 250/400 plates were 2.4mm thick.  Steel were 1.4mm thick for all

[454MRW]

Kip,
I looked them up in 3 different manuals, and measured these with an electronic caliper, and the actual measurement was 2.06mm. According to the books, the sintered bronze plates in the 400 is 2.0mm, the 250 mc is 2.5mm, and the 175 and 250 gs models were 3.5mm thick. The organic ones in the 79 manual show 125/175/250 2.75mm and the 400 2.5mm, and the steel discs for 125/175/250 as 1.5mm and the 400 as 1.00mm. Somemwhat confusing as the gs bikes used different thickness than the mc model 250's. Mike

Michael R. Winter
I enjoy rebuilding and appreciating Pentons!
1974 250 HS Pentons-1980 KTM 175-400'S

[Kip Kern]

I think the plates went where ever as I have only built a few (3 or so) engines with the 2.0mm plates.  Most 250's/400's (1973-1976) have been the 2.4mm sintered and the 175's were 3.4mm organic.  My "76" GS 400 came with 2.4mm sintered.  No biggie, I greatly appreciate the search for the plates.  I would be interested in the 2.4mm sintered and 1.4mm steels if you can get them, also some of the 3.4mm organics.