Here's what I am imagining for a rear rack extender. A laser-cut piece of wood I can zip tie onto the rack and then use bungee cords to hold things down.
Zip ties can be a pain but I probably won't need this too often. I can always explore other attachment methods in the future.
Nov 3, 2026, 6:44 PM@rasterweb I tried zip ties with a crate for my son once, but the shaking loosened them after a few kilometres. To be honest they were pretty cheap ones, so maybe that was the issue. I wonder if something like bolt tightened clamps could work?
@dain I used to have a milk crate zip tied to my rack and it was solid. (I'm pretty skilled with zip ties though. Once wrote a manual at work on proper usage of them for a traveling exhibit.)
@dain Bolting is an option, but for my needs sometimes zip ties are just quick and easy. Using more heavy-duty ties helps, and pulling them tight with some pliers helps. And, use enough so you don't get any wobbles.
Nov 3, 2026, 7:11 PM@rasterweb I would recommend drilling through the rack and bolting the extender to the rack, possibly with some elastomer spacers in between.
If you added pieces of wood aligned with a side of the rack tubing in some of the places where there are the small twin holes, that would constrain the extender from front-back and sideways movement, and it would just drop into the correct position. The zip ties would only need to hold the extender against upward movement, and in some scenarios the bungee cords may even be sufficient for that.
@isol Excellent. I could also 3D print another MIK adapter to fit it in place... I did that before and it worked well enough.
https://rasterweb.net/raster/2025/10/26/aventon-level-3-mik-adapter-plate/
I don't know if the ortlieb quick rack is MIK compatible, but I came up with this connection system for mine. Parts printed separate from plate for best layer alignment. Levers pointed inwards it slides into rack, turn levers 180° to "latch" onto round rack. MIK's separating latch from edge blocking is a better approach. Mostly this is a splash guard with or without the rack bag on top of it.
