Electric bikes are sized for a mythical average adult of about 5'9". Everyone else is told to adjust the seatpost and cope.
The Z Miami is Super73 admitting that. It is the same idea as the S2 — same 500 W motor, same 480 Wh battery, same 20 mph — on a frame with a 28-inch seat that fits riders from 4'6".
59 lb is the specification that changes the day
Eight pounds does not sound like much until you are lifting the bike over a kerb, up a step into a hallway, or onto a rack. At 59 lb the Z Miami is the only bike in the range one person can reasonably manhandle.
Super73 has managed that without cutting the rider weight limit: the Z Miami is rated to the same 325 lb as the full-size S2, which is unusual for a smaller frame and speaks well of the engineering.
59 lb — the lightest Super73, and 26 lb lighter than the MZFT.
28-inch seat height; recommended for riders 4'6" to 5'11".
325 lb rider weight limit, matching the larger S2.
480 Wh UL2271-compliant battery; 25–35 miles of range.
Tektro two-piston brakes and a five-hour charge.
A smaller bike that keeps the big bike's weight rating is rare. Usually the small frame comes with a small limit and an apology.
What it does not have
Suspension, again. The Z Miami is rigid front and rear, and the fat tyres are the entire damping system. On good surfaces this is fine; on a broken road it is the thing you will complain about.
There is also no dual-battery option, so 25–35 miles is the ceiling. For the short, dense trips this bike is built for, that is more than enough — but it is a ceiling.
Who it is for
Shorter riders who have been squeezed out of this category, and anyone whose bike has to be carried in and out of a building. It is a deliberately small machine that has not been weakened to get there.
If you are over about 5'11", buy the S2. The specifications are almost identical and the frame will fit you properly.
See it for yourself
