SUPER73 B1G E-Bike Review: Built for Tall Riders

Written by: Chris Van Leuven | July 13, 2026 | Time to read: 6-7 min

If you’re shopping only by specs, the B1G Core may not jump out. It has a 500W nominal motor, a 520Wh removable battery, an analog display, 2-piston brakes, BDGR tires, a rigid fork, and a 20 mph top assisted speed. Those are useful details, but they don’t explain why this bike exists. The B1G is about fit.

SUPER73 built it as part of its A-Series lineup and calls it the first bike in its lineup designed for taller riders. The 33-inch seat height is the main feature. It gives longer-legged riders more space and keeps the bike from feeling like a compact frame with a tall person perched on top.

Plenty of riders assume they need more motor when what they really need is a bike that fits. A cramped bike can make even a short ride feel just off. Your knees come up too high. The bars feel too close. You shift around looking for comfort that never really shows up.

The Core model’s 15–20-mile single-battery range is worth understanding. That’s enough for short rides, errands, and mellow town cruising, but it is not a huge range for a bike at this price. Real-world range depends on rider weight, speed, terrain, tire pressure, temperature, wind, incline, and throttle use. If you’re planning longer rides, you’ll want to think about frequent charging habits and the optional dual-battery setup.

The B1G Core is the simpler version. It gets a tall frame, a 500W nominal motor, a 520Wh battery, a rigid fork, an analog display, 2-piston brakes, and a Class 2 setup. The B1G Special Edition is the one to look at if you want more comfort and range. Depending on the trim, it adds upgrades such as a larger battery and adjustable front suspension.

I wouldn’t buy the Special Edition just because it sounds like the better bike. Buy it if the upgrades solve a problem you actually have.

The B1G does not feel like a traditional commuter e-Bike. A bike like a Specialized Turbo Vado or Gazelle Ultimate is built to cover miles efficiently. The B1G feels closer to a cruiser. It’s more about rolling through town, taking short trips, and enjoying the ride than getting across a city as quickly as possible.

For taller riders, the first thing you’d likely notice is not the motor. It’s the space. The higher seat changes the knee angle, and the bike feels less cramped than many smaller SUPER73 models.

The Core model’s rigid fork keeps things simple, but it also means the tires are doing most of the comfort work. That’s fine on smooth streets, bike paths, and neighborhood rides. On rough pavement, potholes, and broken terrain, the Special Edition’s adjustable front suspension makes more sense.

The 500W nominal motor should be enough for the riding this bike is built around: neighborhood loops, beach-town cruising, campus transportation, quick errands, and short urban trips. If you’re planning for steep hills, daily long-distance commuting, or the strongest possible motor, I’d compare it with more traditional commuter e-Bikes before deciding.

The speed setup is also worth knowing. The B1G is listed with a top assisted speed of 20 mph. SUPER73 says customers who download and pair the app after January 1, 2025, won’t have access to modes beyond Class 2, which is how the bike is sold.

The B1G is for riders who already like the SUPER73 idea but need more room. It makes sense for taller riders who feel cramped on smaller e-Bikes, short urban rides, beach towns, bike paths, campus transportation, neighborhood errands, and riders who like to customize their bikes.

It’s not for smaller riders, apartment dwellers who need to carry a bike upstairs, riders who want the lightest bike possible, or anyone who wants a long range from a single battery.

SUPER73 bikes also attract people who like adding accessories such as locks, bags, racks, phone mounts, mirrors, lights, and more. That can be part of the fun. I just wouldn’t assume every upgrade adds value. Fit, battery condition, brakes, tires, and clean electronics matter more.

Since the B1G is still a newer model, used inventory on either Facebook Marketplace or Upway may be more limited than for older SUPER73 bikes. But when used ones do show up, I’d look closely.

I’d also ask how the bike was stored. A B1G with more miles but regular indoor storage can be a better buy than a low-mileage bike that sat outside.

Because SUPER73 owners often customize their bikes, photos matter. Look for clear shots of the battery area, charger, display, tires, brakes, frame, and any aftermarket parts.

If Upway has a SUPER73 B1G or other used SUPER73 electric bikes in stock, it’s worth comparing those listings with private-sale options. If Upway has a SUPER73 B1G in stock, I'd start there. Its master mechanics inspect (with a 50-point inspection) and refurbish every bike, and each bike comes with a 1-year warranty and a 14-day return period. That's a lot more reassuring than trying to judge a bike from a few marketplace photos.

The B1G is worth it if fit is what has kept you from other SUPER73 models. That may sound simple, but comfort wins. Nobody talks about it first. They talk about speed, battery, and price. But after an hour of riding, fit is what they remember.

For a taller rider who likes the SUPER73 look, the B1G makes sense. The 33-inch seat height is not a small detail. It changes how the bike feels and gives longer riders a version of the brand that finally seems scaled for them.

But there are tradeoffs. The Core model’s 15–20-mile single-battery range is modest. The rigid fork may feel rough on bad pavement. And if you’re shopping purely by practicality, a traditional commuter e-Bike may give you more range, more cargo options, and more daily usefulness for the money.

I’d put it this way: don’t buy the B1G just because it looks good in photos. Buy it because you’re tall, you like the SUPER73 style, and you want a bike that gives you room.