Long Range
Husqvarna
B Class
I've made some progress on my 82 XC 250 and thought I would post up my project. I've been watching the various builds, and I decided to try to mount up some modern USD front forks. These forks are from a 2000 Yamaha YZ 250, and they are mounted with KTM triple clamps. The top clamp is 54 mm diameter and the bottom clamp 57 mm, both with 20 mm offset. These were used by KTM on many of their EXC models from 00-01, I think. It has a KTM 244 mm stem along with new steering-head bearings (L45449). I used new KTM parts for the stem screw, upper bearing cover and seal.
The YZ forks are 54 mm at the top clamping area, so they fit the upper KTM clamp without much modification - just a little honing. The lower clamping area on the YZ forks is 58.4 mm (2.299"). This required some boring of the KTM clamp to open it up from 57 mm to 58.55 mm (2.305") - done by my remarkably talented machinist-neighbor.
Gary
The YZ forks are 54 mm at the top clamping area, so they fit the upper KTM clamp without much modification - just a little honing. The lower clamping area on the YZ forks is 58.4 mm (2.299"). This required some boring of the KTM clamp to open it up from 57 mm to 58.55 mm (2.305") - done by my remarkably talented machinist-neighbor.

Gary
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2000 YZ forks 2001 KTM triple clamp 1982 XC 250 005.jpg97.1 KB · Views: 86
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2000 YZ forks 2001 KTM triple clamp 1982 XC 250 001.jpg97.6 KB · Views: 75
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2000 YZ forks 2001 KTM triple clamp 1982 XC 250 003.jpg96.8 KB · Views: 66
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2000 YZ forks 2001 KTM triple clamp 1982 XC 250 004.jpg96.4 KB · Views: 67