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Old 07-06-11, 05:33 PM   #1
BillP
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MTX trunk bag mount onto non-Topeak rack mod?

Hi,

I have a MTX trunk bag and its great with my Topeak racks. However I have some bikes that can't fit the Topeak rack.

Is there a mod I can do to allow the MTX bag to slide on for non-Topeak racks? I'm thinking maybe attaching an aluminium extrusion, or folded sheet metal. Perhaps route a groove in some High Density Polyethylene and fixing that somehow.

Or maybe cut off the top of a cheapish Topeak rack and rivet than on. Any ideas?

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Old 07-06-11, 06:03 PM   #2
waynesworld
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Any reason why you don't want to just mount a Topeak rack? I mean, if you're considering buying one anyway, and riveting the top onto your current rack, why not? Is it some sort of family heirloom
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Old 07-06-11, 06:19 PM   #3
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Any reason why you don't want to just mount a Topeak rack?
Thanks waynesworld. Yes they wont fit. (or the ones that would, aren't strong enough)

The alternate rack I want to use the bag on mainly is an Old Man Mountain White Rock, which I bought as the only rack which would fit the canti bosses on a MTB. I would rather use Topeak than OMM but I need something sturdy.

I suppose I could weld some side plates on a Topeak rack to use the canti bosses. Hmm might be easier that way. BillP.

Last edited by BillP; 07-06-11 at 07:28 PM.
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Old 07-06-11, 08:20 PM   #4
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I don't have one myself, but doesn't the bag also have the velcro attachment straps as well? May not be as slick as the Q-R system, but still functional.

Or why not use p-clamps to mount the Topeak rack to the mtb?
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Old 07-07-11, 02:44 AM   #5
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Can anyone speak to how waterproof this bag is? It's in the running for a trunkbag for either me or my partner. We are both looking for one.
Also, can someone confirm that it can attach to a regular rack without the special quick release method? I admire the OP's idea for converting another rack to this system, but know my girlfriend wouldn't go for it!
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Old 07-07-11, 06:02 AM   #6
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Can anyone speak to how waterproof this bag is?
Mine isn't waterproof at all, but they do make a rain cover for it.
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Old 07-07-11, 06:23 AM   #7
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as nice as the matching trunks and racks are this is just another reason for generics
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Old 07-07-11, 07:17 AM   #8
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They are not waterproof but a little rain won't hurt. I've ridden them in rain for my short 30 minute commute and my stuff didn't get wet. However I would not try longer than that or put phones, etc near the zippers.
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Old 07-07-11, 09:15 AM   #9
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MTX Trunk bag

I have one of these with the matching rack. However, the MTX does have Velcro strips on the sides and front to loop around a traditional rack.
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