Penton Owners Group

General Discussion => Penton Talk => Topic started by: firstturn on May 22, 2015, 11:38:22 AM

Title: Shock Length?
Post by: firstturn on May 22, 2015, 11:38:22 AM
Can anyone help me the correct shock length (eye to eye) for a 1981 ktm 250 mc?  Thanks.

Ron Carbaugh
Title: Shock Length?
Post by: firstturn on May 22, 2015, 09:13:45 PM
I think I have the answer.  It is 13.75 to 14 inches depending on how fast you want the steering.  If anyone disagrees with this let me know.  Thanks for the emails.


Ron Carbaugh
Title: Shock Length?
Post by: adrian_goold on May 23, 2015, 04:45:11 AM
16.25 inch i believe.
Here is a link for the chassis parts book :

https://drive.google.com/file/d/0B7Lj5G78cOndcFdDaGZPYjJPWHc/view?usp=sharing

Regards,
Adrian Goold #101
http://www.ozktm.com
(http://a3.l3-images.myspacecdn.com/images02/142/fe1e34e644f240d797527a8b19182548/l.jpg)
'73 175 Rebuilt|'74.5 250 Rebuilt|'74.5 400 Restoring|'76 MC5 250 Restoring|'76 MC5 400 Restoring|'78 250 in pieces|'81 250 Now Racing| '81 495 Now Racing|'84 125 Selling|'07 KTM 300| 74 CZ 250|74 CR250M x2|
Title: Shock Length?
Post by: adrian_goold on May 23, 2015, 04:51:04 AM
Engine Parts Book:
https://drive.google.com/file/d/0B7Lj5G78cOndZGhXTkZZc0xLOWs/view?usp=sharing

Owners Repair Manual:
https://drive.google.com/file/d/0B7Lj5G78cOndd3YtQlBtbUlwY0E/view?usp=sharing

Regards,
Adrian
Title: Shock Length?
Post by: 454MRW on May 23, 2015, 07:19:47 AM
I agree with Adrian. My 1980 MC80 250 had Factory Fox Shox and they were approximately that length. I wish I had never sold that bike! Those bikes sit very tall. Mike

Michael R. Winter
I enjoy rebuilding and appreciating Pentons!
1974 250 HS Pentons-1980 KTM 175-400'S
1975 Can Am 175 TNT & 77 250 Black Widow
1979 Husqvarna OR390
1976-78 RM & 77-79 PE Suzuki's
1974 CR250M 07 CR125R 79 CR250R
Title: Shock Length?
Post by: adrian_goold on May 23, 2015, 08:03:12 AM
Yes Mike,

I actually had mine running lower than stock when i used fox airshox on mine.

Adrian
Title: Shock Length?
Post by: firstturn on May 23, 2015, 08:30:41 AM
Thanks Adrian I will pass this along.  I never owned any 1980's KTM bikes so i had nothing to measure it by from my notes or in my shop.

Ron Carbaugh