wheel bearings?

[jetmechmarty]

Phil,

I believe you need a packing (o'ring) for the fork cap and a little one for the air valve. I would expect you to be able to source them locally. Looking at the Killboy photos, your forks are fully compressed in the turns on The Dragon.

[TopCatGr58]

TC, our OEM shocks have rebound damping, and no compression damping. The Specials have adjustable rebound damping. Aftermarket shocks usually have both.

Hey Phil,

I got my 81 SH with only 17 miles on it in '83, and remember the bucking horse jackshaft type affect of the driveshaft climbing the rear wheel affect shortly after getting the bike broken in....so shocks were brand new. I had the dampening set to MAX, and still experienced the rear end rise on throttle input affect. The rear end of the bike coming UP and the rear wheel going down expands the rear shocks, and this happened EVERY TIME I got on the throttle hard. I learned to deal with it for the 9 years I rode it till it's tranny died.

AFTER I rebuilt the bike in 2000, put on new cheap aftermarket shocks, and I clearly remember after getting the topend rebroken in, that I started to play with the throttle, and realized that I didn't experience the jackshaft bucking bronco affect anymore. SO.....the newer shocks (I assumed) had both Expansion/rebound and compression dampening because I no longer experienced the jackshaft affect.

SO...IF the OEMs were supposed to have rebound/expansion dampening then how do we explain the jackshaft affect??

T.C.

[motoman]

Hey Phil,

I got my 81 SH with only 17 miles on it in '83, and remember the bucking horse jackshaft type affect of the driveshaft climbing the rear wheel affect shortly after getting the bike broken in....so shocks were brand new. I had the dampening set to MAX, and still experienced the rear end rise on throttle input affect. The rear end of the bike coming UP and the rear wheel going down expands the rear shocks, and this happened EVERY TIME I got on the throttle hard. I learned to deal with it for the 9 years I rode it till it's tranny died.

AFTER I rebuilt the bike in 2000, put on new cheap aftermarket shocks, and I clearly remember after getting the topend rebroken in, that I started to play with the throttle, and realized that I didn't experience the jackshaft bucking bronco affect anymore. SO.....the newer shocks (I assumed) had both Expansion/rebound and compression dampening because I no longer experienced the jackshaft affect.

SO...IF the OEMs were supposed to have rebound/expansion dampening then how do we explain the jackshaft affect??

T.C.

T.C.
That is caused from the pinion gear trying to 'climb' the ring gear,pushing the sprung weight upward.
Marty IS correct.......OEM have dampening on rebound, not compression, or it WOULD be pogo-stik.

[bikerphil]

TC, next time you take a spring off of an OEM shock, you will notice that there is no drag pushing the piston downward, but pulling upward there is resistance. The aftermarket performance shocks will have resistance both ways. The bucking feel is from the lack of any resistance on the downward motion. Factory shocks are usually designed more for comfort than good handling, exception being sportbikes.

[jetmechmarty]

The three wheel bearings are available from all the usual vendors, most being Chinese imports such as All Balls. The OEM bearings are Koyo, now manufactured in the US. Plug the part number into a search engine and you'll find quality bearings to suit your desire or budget.