Mounting a Carradice Camper Longflap on a rear rack.

[Danneaux]

Thorn accessory bar. Bag supported on rack.

Sure would like to do this on all my bikes, Brummie. Worked well enough on my frames where I could lay the bag's bottom atop the rack, but not on bikes where the needed vertical gap was unavailable (paralleogram suspension seatpost, see photo; bike model ended production in 2008, equipped with one of two Thorn Sherpa Mk2 forks in different rakes).

I love Thorn's T-bars and uplift, but tariffs make it impractical to equip every bike in my fleet!

As you might have guessed, this topic is near and dear to my heart...and my lightweight CCL camping setup...
https://thorncyclesforum.co.uk/index.php?topic=11787.msg85858#msg85858

Best, Dan.

[martinf]

On the topic of doing it yourself with aluminum rods and bars, it is my experience that the bar and rod stock that I buy at the hardware store is much more flexible than the metal parts that come on manufactured parts. 

Thus, my home made stuff is often weaker with lower weight capacity than commercially made components when using aluminum.

Maybe. I think the chap that made and sold these Lord uplifts probably compensated for any possible material weakness by using thick plate and rods. The uplift and the support that fits to the saddlebag weigh over 400g, nearly as much as the Tubus Fly steel rack.