Thanks for reaching out!
The Co-op Cycles DRT 1.1 may be able to accommodate a 2.4" tire. We're going to connect with our cycle team here to see if we can track down that info for you. We'll circle back with you here in the community when we hear back. Thanks!
Thanks for your patience as we tracked down this information. Our Co-op Cycles team got back to us and it turns out that the Co-op Cycles DRT 1.1 can take a 2.4" tire, however, that is the maximum size that is approved with adequate clearances for your bike.
Hopefully this helps, thanks!