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Old 02-22-08, 03:25 PM   #1
Calli46
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Reinforcing a seatpost rack

Hi folks,

I'm planning a few plastic card trips for next summer. Even with Visa, I need to take some stuff on the bike and, for this, bought a seatpost quick-release rack. I couldn't find anywhere what's the max weight limit it can master without breaking or bending the seatpost. Not willing to take any chance on this, I thought to add two alum plates (one each side of the rack) which would be attached to the rear wheel skewer axle.

I plan to have 15-20 pounds on the thing. First question is : is it worth the effort to add those side plates to the rack ? Second question if "yes" to the first, is the skewer axle able to hold the plates ?

Skewer is steel and seatpost aluminum 27.2 mm. Rack is Ascent Pannier seatpost rack as seen below. BTW, I didn't use a conventional rack because my road bike has carbon rear triangle without any eyelets and I knew I wouldn't have that much weight to put on the rack.
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Old 02-22-08, 04:25 PM   #2
staehpj1 
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The clamp on ones I have seen were rated at 25 pounds. This seems to indicate you might be OK as is, but I never toured with one so I don't know.
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Old 02-22-08, 05:43 PM   #3
Calli46
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Thanks staehpj, that's what I've found so far, but as you said, it's not the same rack. Anyway, I intended to stay far below 25 pounds...
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Old 02-22-08, 05:53 PM   #4
Aloyzius
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Just don't clamp it to a carbon seat post, and you should be fine. One of my bikes has a clampy rack and it's been just fine.
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