JackT wrote: ↑Fri Oct 11, 2019 12:30 pm
As discussed on the CTC forum ten years ago. And reaching a similar conclusion. Great minds and all that.
https://forum.cyclinguk.org/viewtopic.php?t=29456
Thread mentions Ian Hibell, who had his rear rack brazed to the frame. But then again he was doing serious load-lugging for years on end in some very hostile terrain.
hibell-bike.jpg
Just as I might ask if the regular M5 mounted rack survived, the same question comes to mind with this fellow's rack.
As stated before, should the bolt fail, it's dead easy to replace it. If you make sure the interface isn't dodgy and tightened correctly, the chances are very little, that it'll snap.
Just now I'm in the process of preparing my bike to carry 15 L of water and so many days worth of food, it's basically just really stupid.
Next to bikepacking gear for a remote area, I'll be taking high altitude hiking/climbing gear with me as well.
Still, I'm going with the regular M5 and god forbid, an alu rack (just because that's what I got... and fit the bike well). The total (and worst case scenario) load without me and the bike itself should be about 55 kg. Yet the rear pannier only get's about 20 kg and the front about 10 kg. The rest is supported by structures on the frame/fork not attached to the racks.
So instead of investing in a nuke proof rear rack (mind, not detachable) or M10 bolts for it, why not just make sure your frame and fork have multiple bosses to distribute the loads more evenly, mix the rack stuff with soft bikepacking bags etc.
The bike will also be more balanced to ride. Just like trimming a boat.
Or perhaps I'll die on that trip, thanks to a failed M5 bolt... We'll see.