Trance3 rear - BRRACCHKCK!!!! - anyone heard that noise?
That's the noise I hear coming from the rear of my 2005 Trance3, whenever I hit a mildly large (4-8"), sudden bump. Or, maybe it's a KAANKK sound. Bike is still very new, less than 100mi of medium duty use - no big hits, maybe 10-15mi in wet conditions. I think I've had the noise the whole time I've had it, just now, it's starting to bug/worry me. I'm 6'3", about 185lbs, and have had the shock at anywhere from 150-190psi - I still seem to get the noise and, I don't think it's coincident with bottoming out as I think there's still 5-10mm of play left on the shock column (unless the bottom is higher than I think it is). No looseness or other noises detected from the rear.
Anyone experienced this?
No experience with it, but I can give you a few tips?
Originally Posted by swoodbrn
1) pull the shock off the bike and check the motion of the suspension to see if it's a bushing/bearing
2) while the shock is off the bike put an o-ring on the "column" of the shock to keep an eye on your shock stroke (this wouldn't work very well if you're using a coil-over)
3) while you've got the shock out (or even while it's still in place) check for any paint chips or area's where something doesn't look right as this would indicate a bigger problem. Who know's, you might even find a rock hiding somewhere causing all of this.
If you're not at all mechanically inclined then take the bike to your LBS and tell them to check it out.
Oh, you've already ruled out "chain slap", right???????????????
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Chain slap makes more of a slapping noise Kidding, but it sounds to me like the problem is either your seatpost not fitting correctly, but thats unlikely. Your shock *may* be bottoming out, its possible. How much space exactly is left? Do as Andrew said and check if its not a bushing/bearing issue. It very well may be.
One of my friends recently died of a coke overdose and it really got me thinking, "damn, maybe I should start drinking pepsi"
No, I don't really think it's chain slap. Sounds too substantial and I actually just shortened my chain a couple links to accommodate a derailleur change - it's now pretty tight. Don't think the derailleur change is the reason either, as I'd heard the noise prior. I'll definitely try to first, confirm that it's not just bottoming out - there's already a collar to determine sag. Thx.
No confidence in the LBS where I got it. I'll first empty the shock of air and determine the true range, so that I can confirm/deny bottoming-out potential. What did you actually find when you tore down the rear, anything? Thx.
I found that some of the bearings seemed a bit on the hard/tight side (something GIANT messed up on specing the bearings, Enduro Seals offers a proper kit for the Maestros') and just took off the dust covers and regreased them and the whole suspension. What pressure are you running the shock at and what weight are you? I find I need to run my shock over my body weight by around 20lbs. Also the sound you mention I only ever got on the road while bombing a really rough section at night and couldn't see well and hit some nice sized pot holes.
Originally Posted by swoodbrn