The Kuat Transfer # KU64FR and the RockyMounts MonoRail Solo part # RKY10007 are REALLY close in a lot of specs and are both really great bike racks with a very close price so it's a tough call to pick between the two. Both would also easy handle a 50 lb e-bike on a longer road trip as well. But I would give the edge to the MonoRail as it comes with a hitch lock and a cable lock whereas the Kuat requires you to buy the hitch lock separately. Aside from that you could look at the aesthetics... view full answer...