Saw today that Sour has re-realease thier Bad Granny MTB for 2024. Awful name but a great looking rigid all-rounder. What stood out to me most was the replaceable rear post mount that’s integrated with the NDS dopout (picture from the shop section of the site). Can’t remember seeing anything like it before. Definitely not on a Taiwanese made bike anyway.
What do people think? Looks too be a pretty neat solution as it removes the threads from the frame which is what I love about IS. Not sure if they intend to offer mutliple sizes to do away PM-PM adapters for larger rotors. Would be super neat if they did.
I also imagine it would be self-fixturing to some extent? Could be a great system if made availiable for the home/hobby builder.
Oh and semi-related. I know one issue folks have with UDH on steel bikes is the lack of symetry. This bike is UDH ready and it appears as though the extra width of this brake mount system has resulted in a symetrical rear end.
I guess it’s along the same lines as the sliding UDH dropout I’ve got in the works for my next hardtail. I’ve only got a flat mount version drawn up so far, but I should be able to make up a post mount variant too.
If you’re not yet acquainted with Vincent I’d highly recommend having a look at what he does as a mech eng student/ trials rider. His insta is always full of new cool stuff he’s doing. A lot of interesting 3D printed stuff which he’s testing out (properly!) and the development of a trials frame.
If you’re quick he’s currently got a load of frame failures in his stories submitted by other riders which is obviously like crack to us right?
He’s not on the forum yet and perhaps under the radar and defs deserves a look. He’s also producing a cool chain tensioner.
