A shock mount needle bearing failure?


Oct 14, 1999
I can see the forward mount (attaching the linkage to the frame) on my bike move within the frame when I unload the rear suspension and move the rear tire up and down. I can feel it 'knock' when the suspension unloads when riding.

The bearings LOOK ok..plenty of grease (I've serviced them a couple of times in the past year& 1/2). The collar movement on the bearings is smooth. I detect no movement by hand between the collar and the bearings with the linkage out of the bike. The bolt-to-collar fit isn't terrific, but another bolt fits the same way (moves somewhat).

My question is, is this a bearing failure? A collar-wauller (new word?),..what?

With the last bolts for my devol pull rods running about $15 each, the fewer pieces I have to get to fix this, the better I'll like it!!

Thanks for the input!!

  • OLD member
    'oh-oh' KDX 200
    '86 Nighthawk 700 SC
    (a motorcyle even if it doesn't have a chain!)


Nov 21, 2000
Mine also moved on a different section of the linkage due to a loose bolt.
It does seem that the hole in the linkage are a little big and would lend themselves to doing this and causing a bearing failure due to the pounding. Seems to me you must keep these tight and check them often to keep this from happening.I hope your bearings not hammered! Good Luck...Steve


G. Gearloose

Pigment of ur imagination
Jul 24, 2000
I think the collar/inner race is supposed to be totally immobilized, no movement, no spin, and under compression in its mount (frame, pull rods, etc) due to the bolt's tension. The collar-to-bolt slop should be mute when fully torqued.



Jun 5, 2000
I have my old rocker arm, sleeves and bearings. I can mike the dimensions of the rocker ID, Sleeve OD if it would be any help for comparison purposes.

96 KDX 200
(soon to be a 225, or else a bunch of expensive parts scattered all over the trail...)
Top Bottom