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Tubus Racks & plastic tubing?

Old 06-27-23, 05:24 AM
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Tubus Racks & plastic tubing?

I recall some here have used tubing in lieu of the inserts on the Ortlieb panniers. Can you tell me what OD size you used?
Thanks
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Old 06-27-23, 08:39 AM
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Originally Posted by Tandem Tom
I recall some here have used tubing in lieu of the inserts on the Ortlieb panniers. Can you tell me what OD size you used?
Thanks
I’ve never had to use the inserts with a Tubus rack. Tubus rack tubing is larger in diameter than most other racks.
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Old 06-28-23, 07:51 AM
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I think I used 3/8 inch ID and 1/2 inch OD tubing on both my Logo EVO and on my Racktime Addit racks. Tubus is steel, Racktime is aluminum but both appear to be the same size OD.

One or two layers of electrical tape over the plastic tubing improved the fit with the Ortliebs, but over time the tape wears through or starts to come off.

This photo is from my first tour with the plastic tubing, later I added a few zip ties to the tubing. This is on my Logo. Note that I also put the tubing down lower on the rack where the pannier chaffs against the rack.



Photo below is my Racktime rack. I do not have a photo showing the pannier hooks on this rack.

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Old 06-28-23, 12:59 PM
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I measured the diameter of the tubes on my Tubus rack and looked for pipe with that internal diameter. I reckoned the few mm of the wall of the plastic tube would be enough to fill the gap. From memory it was a double skinned plastic tube used for central heating.
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Old 06-28-23, 03:55 PM
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I just checked, and yes the ID was 3/8 and OD is 1/2 inch, clear plastic tubing or hose from the hardware store. Slit it lengthwise so I could put it over the rack tubing.
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Old 06-29-23, 05:42 AM
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Thanks!
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Old 06-29-23, 03:55 PM
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I did my setup already 6 or 7 years ago, so dont recall the exact specifics, but I do remember it was a bit fiddly. I think I got tubing that was too thick at first, so went back and got some stuff that worked.
I also recall putting the cut opening on the under part of the rails, and then the rack springy encircling whatsit kept catching on the open part, which was annoying. Pretty certain that I just twisted it so that the open part was on top.
I did put little zipties, but in the end, tape just worked fine and has held up well generally over the years.
I think that Ive mentioned that my panniers fit on somewhat tightly, so that I have to manually close down the encircling part , slightly annoying if commuting, but not a big deal and this means that there is no looseness at all, so less forces going into the mounting system with each jiggle and jounce. I kind of just figured this would be the best way to avoid loosening hardware, and it must be the case as Ive had really no problems with my panniers.
A friend had issues with his Ortliebs, but Im fairly certain that looseness/clearance issues were at play here, and he did ride part of the Great Divide route, so a hell of a lot of bouncing around compared to roads. His inner bolts holding the mounting system to the panniers became loose, something I have never had in just about 30 years of using Ortliebs, hence my wondering if it was user error on his part on mounting the panniers and having looseness that put way more forces into his stuff over time.
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Old 06-30-23, 04:40 AM
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In previous years I used Gorilla tape to build up the diameter. But this past winter I refinished the racks and removed the tape and painted them.
I did use tape on the lower parts as a "wear strip". Did you do anything like this?
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Old 06-30-23, 06:15 AM
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Originally Posted by Tandem Tom
In previous years I used Gorilla tape to build up the diameter. But this past winter I refinished the racks and removed the tape and painted them.
I did use tape on the lower parts as a "wear strip". Did you do anything like this?
Yes, I have put some tape on the lower parts, its an easy thing to do. Last night I was adjusting some new small panniers to go onto my rear rack and saw there is some paint rubbed off in some lower areas, so I suppose I should add some tape. Not a big issue though, just a little rubbing.
I don't see any downside to putting tape on, if you dont like it , just peel it off.
Putting any sort of stuff on racks to stop wearing just seems like a good idea all in all to me.
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Old 06-30-23, 06:45 AM
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Originally Posted by Tandem Tom
In previous years I used Gorilla tape to build up the diameter. But this past winter I refinished the racks and removed the tape and painted them.
I did use tape on the lower parts as a "wear strip". Did you do anything like this?
My second photo above shows quite well where I added more plastic tubing for that purpose.
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