The kickstand mounting bracket shape and leg are both different. I think the Gen5 may be a little longer as well. The mounting hole for the actual stand is technically the same though. The Gen4 uses a 10x30 half-threaded bolt and the Gen5 uses a 10x30 unthreaded bolt with an additional collar. In place of a nut they use a tiny cotter pin. In order to use the Gen4 stand on your Gen5 brkt you'll need to get a partially threaded M10 bolt and nut, that's all. Again, that bracket shape is different though... The Gen4 mount if flat and the Gen5 has a XX degree bend in it so there's no guarantee it's going to sit right.