Project BMX Battery Guide: Range, Pedal Assist and How It All Works

The Project BMX runs a 36V 9.6Ah Samsung cell battery producing 345.6Wh of usable energy. That translates to up to 60 miles of range with pedal assist, or up to 15.5 miles on throttle alone. Understanding how you ride determines which number applies to you.

Most questions about this bike come down to one thing: how far will it actually go, and how does the assist system affect that? This guide breaks down the battery, the five riding modes, the pedal assist logic and what to expect in real-world use.

What the battery actually delivers

At 345.6Wh, the Project BMX battery is smaller than what you find on Evolve's electric skateboards, but that is by design. The Bafang M560 mid-drive motor is mechanically efficient, meaning it works with your pedaling rather than replacing it. The result is a better energy-to-distance ratio than a hub motor of equivalent wattage would produce.

The battery weighs 2 kg and sits integrated into the frame, keeping the center of gravity low and the BMX silhouette clean. There is no external pack bolted to the downtube. It charges in around 3 hours, which is fast enough to top up between a morning commute and an afternoon ride.

How pedal assist changes your range

The 60-mile figure assumes you are actively pedaling with assist engaged. That is not an inflated lab number. It reflects how mid-drive systems actually work: the motor multiplies your input rather than substituting for it entirely. Ride harder, contribute more, and the battery lasts longer.

The five selectable assist modes let you dial in how much the motor contributes. Lower modes give a subtle push and preserve range. Higher modes front-load the torque and accelerate faster but draw more from the battery. For longer routes through a city like Los Angeles or San Francisco, where flat stretches and mild grades are common, staying in the middle modes will keep you closer to the 60-mile ceiling.

On throttle only, without pedaling, expect up to 15.5 miles. That is enough for a focused short commute or a campus loop, but it is not the mode this bike is optimized for. If you plan to rely heavily on throttle, factor that into your route planning.

Throttle, pedal assist and the 500W versus 250W difference

The Project BMX ships in two firmware configurations: 500W and 250W. The difference matters for how the bike behaves, not just where you can legally ride it.

The 500W version comes standard with throttle enabled and no governed speed cap. Top speed reaches up to 22 mph with pedal assist and throttle combined. It is intended for private property use.

The 250W version is configured for road compliance, with a 15 mph pedal assist limit and no throttle from the factory. It uses the same motor hardware but limits power output through firmware. Some riders add a throttle aftermarket, but doing so takes the bike out of road-legal compliance. The Project BMX product page notes that this is not legal advice and that riders should check local laws and ordinances before riding on public roads.

In practical terms, the choice affects more than legality. The 500W configuration delivers noticeably stronger acceleration and more torque out of corners, which changes the feel of the ride on open ground. For riders in Austin or Miami using the bike on private land or off-road, the 500W firmware suits that use well. For anyone commuting through New York or other regulated urban environments, the 250W version is the appropriate starting point.

Display and ride information

The LED handlebar display shows speed in mph, current mode selection and battery level. It also controls rear lighting modes and includes a walk assist function for dismounted pushing. The display carries an IPX5 water resistance rating, so light rain exposure is not a problem, though the bike itself is not designed for deep wet-weather use.

There is no regenerative braking on the Project BMX. Braking is handled entirely by the front and rear hydraulic disc brakes, which are strong and well-matched to the bike's weight and speed range. The absence of regen is a tradeoff for the mechanical simplicity and feel of a proper BMX drivetrain.

Spare batteries and travel

At 345.6Wh, the Project BMX battery exceeds the standard 160Wh airline carry-on limit for lithium batteries. It is not a travel-friendly configuration. If you need to fly with the bike, check directly with your airline before assuming it can be carried in the cabin. Most will not permit it.

There is no swappable spare battery option in the current Project BMX lineup. The battery is integrated into the frame as part of the stealth design, which is a deliberate choice to maintain the clean BMX aesthetic. If you need extended range beyond a single charge, the most practical answer is to plan around the 3-hour charge time or carry a portable charger for a mid-day top-up.

Who this setup suits

The battery and assist system on the Project BMX are calibrated for riders who want a genuine riding experience, not passive transportation. If you pedal, you get range. If you want to cruise throttle-only, the range drops significantly and the bike starts to feel less like what it was designed to be.

For riders in cities with established bike infrastructure, including coastal paths around Miami, the bike lanes of San Francisco or the growing urban cycling networks in Austin, the pedal assist format fits naturally into how those routes are used. You arrive without being wrecked, and the bike looks like a BMX, not a piece of commuter hardware.

If you are comparing this against a throttle-dominant electric board or scooter, understand that the Project BMX is built around a different contract with the rider. The motor assists your effort rather than replacing it. That distinction shapes every spec on the battery sheet.

The Project BMX starts at $4,499 and is available now. Riders on the West Coast can visit the Evolve store in Oceanside, CA for a closer look.

Quick reference: Project BMX battery specs

• Battery: 36V, 9.6Ah, 345.6Wh, Samsung 48X 21700 cells
• Charge time: approximately 3 hours
• Range with pedal assist: up to 60 miles
• Range on throttle only: up to 15.5 miles
• Top speed: up to 22 mph (500W, pedal assist and throttle)
• Assist modes: 5, selectable from handlebar display
• Battery weight: approximately 4.4 lbs
• Airline travel: not suitable, exceeds 160Wh carry-on limit
• Spare battery option: not available