Electronics, Lighting, & Gadgets - PBSF mounting on seat stay?

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tntyz
03-27-09, 08:06 AM
Already have a PBSF mounted on my seat post. Wanted to add one to a seat stay, but having trouble on my Madone 4.5. The cross-section of the stay is rectangular, not round. Neither of the included brackets will work.

I thought about using the seatpost bracket and using something as a filler (like rubber tubing). Anyone tried this? If so, what did you use as a filler? Is there a different (better) solution?

Thanks!

Tony

CastIron
03-27-09, 09:57 AM
I've done it. Used the rubber bits that came with the mount and tightened it down. The plastic will form around the odd shaped stays.
AEO
03-27-09, 01:15 PM
use more than one rubber shim, use scissors for the thinner shim.

tntyz
03-28-09, 08:22 AM
So, sounds like use the large diameter bracket and shim? The small bracket designed for this use appears to be 'way too small.
AEO
03-28-09, 06:12 PM
if the small one doesn't fit with no shims, then I suppose that's the only way.
tntyz
03-28-09, 07:03 PM
if the small one doesn't fit with no shims, then I suppose that's the only way.

It was. I used a piece of fuel line hose slit lengthwise plus the shims that came with the unit. Works like a charm!

I now have one on the seat post and one on the stay. Anlges are slightly offset to give better coverage back there.