AutoSpin T1 Router cable minimum bend radius

I’m looking to set up a diy cnc router using a AutoSpin T1 Router as the spindle. Just looking to get some information on what size drag chains to use. The minimum bend radius etc. There are no specs for the minimum bend on the specs sheet.

On my LM 2.5, for the X gantry, the distance between the drag chain at the coupler and the rail is 4.5”, measuring the outside of the chain, ie., outside diameter. Once installed, the radius tends to be higher away from the gantry.