Magnum is the pinnacle of top tank moped design.
Rode my almost stock magnum xk I'm selling for 70 mi yesterday it was like nothin.
Not tiring at all, large comfy seat, torquey stock engine( mesh filter, one added hole through exhaust, head sanded flat) and 70s enduro bike look and feel.
Large for a moped/bigger then many other top tank bikes, better visibility, very stable platform for a kitted engine, I've had a magnum in the low to mid 60s mph and it had very stable/predictable handling.
Even stock spring forks are way better then most step throughs and hydro magnum MKll forks are perfect.
I have step throughs but they don't get ridden as far.