Needed a 6.0 rear spring for my new to me ktm xc. Had KYB 6.0 kicking off my yammie, it was the correct free length but a bit too large of an inner diameter. Buddy informs me they do make adapter collars, but...
Of course, I’m trying to get the bike together late on a Friday night for a test ride the next day. Hmmm. MacGrubering...
As a temporary measure, I traced a collar from scrap aluminum plate that fit the WP shock and then was wide enough to capture the KYB spring outer diameter. Test fit, looked alright, so I cut a second. Assembled, rolled it into the van, had a buddy help set sag.
Quick rip the next day, post ride inspection showed the spring was still in position, under tension it hadn’t moved. The machined adapter likely has a thin lip to take up the small gap between the shock body and the spring inner diameter.
So, the temporary measure is now permanent.
Side note: 1st gen WP 4cs fork springs (465mm) will work in KYB SSS forks with a (good) 10mm spacer. But that’s a story for another post.
YMMV
Penny Tech: KYB to WP spring shock collar adapter
- malcolmzilla
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