oNegative

I'm in the middle of a custom bike build and I'm trying to decide on what rear rack to use on a bike meant both for commuting and touring. On my current bike I use a MIK-compatible rack and trunk bag, and I'd like to do the same for the one I'm building if possible.

Most of the racks I'm seeing have ~25kg capacity, which seems like enough capacity, but I'm new to touring and I'm not sure if I'm missing key features that the popular touring racks offer.

For reference, these are some of the racks that I'm seeing:

https://www.trekbikes.com/us/en_US/equipment/bike-accessories/bike-racks/bontrager-backrack-deluxe-mik/p/27228/?colorCode=black

https://sks-us.com/products/infinity-universal-rack