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Hold seats loose again...(5 posts)

Hold seats loose again...Kristin
Sep 29, 2001 1:11 PM
Whats the deal? Twice in 30 miles! Where should I look? Stripped bolt or something else? Any ideas before I start disassembling stuff?
if the bolts are okay - Blue Loctite (nm)terry_b
Sep 29, 2001 1:58 PM
Loose how?nee Spoke Wrench
Sep 29, 2001 4:06 PM
Does it rock up and down, side to side or what?

Up and down is generally the more serious problem. Once a saddle gets a little loose, it tends to round over the little serrations in the seat post clamp. One obvious solution is a new seat post. I have been able to solve a similar problem for a customer by using my Dremmel to freshen the serrations.

Good luck.
Side-to-side looseKristin
Sep 29, 2001 5:41 PM
I tend to sprint weird and that's when the problem begins. My gluts (I discovered recently) are exceptionally weak. So I tend to really sit on the saddle. When I start putting out a lot of power, I kinda bounce on the saddle. I'll start to hear a creaking sound, and within 5 miles the seat starts jiggling. I tighten the bolt about 2 turns. This is a single bolt post. I'd tell you the brand, but I'll be dammed if my my seat back strap hasn't worn off the name.
Hmmmmnee Spoke Wrench
Sep 29, 2001 5:55 PM
Two full turns of loosening is a lot. Has it been this way forever or does it seem to be getting progressively worse?

My suspicion is that the threads are worn enough that now it vibrates loose progressively more easily. I suspect you are going to need a new seatpost. Being a thrifty sort, however, I'd try the blue loctite answer first. Just be sure to degrease the bolt threads and mateing surfaces first. Loctite does nothing on oily or greasy threads.