Most cargo bikes split apart in the middle for flat packing. That's fine for most cargo bikes, but the Bullitt is made for abuse. It's one-piece welded frame is made of oversize, squared-off aircraft aluminum tubes that won't flex a millimetre in tight corners. Oh, and it's aluminum, so it will also never rust.

That means a strong frame with a responsive feel, that keeps you in one piece, even if you're hopping curbs and dodging potholes - whether intentionally or just because they're there.

At only 46cm wide, the Bullitt frame is the product of street smart design. Stiff, lightweight, narrow and tough. Nothing pieced together here.

The Bullitt is a one-size fits most frame solution. How do they do this?

First, the top tube of the bike slopes generously. We've seen riders 5'4" hop on easily. Second, the bottom bracket sits very low to the ground. This means even shorter riders have a toe on terra firma. It also makes the bike handle better too. Third, all Bullitt's come with the Satori Easy-Up, a clever device (pictured) that raises the handlebars up and down with the flick of the lever.

Why no step through frame? We are asked this a lot. A step through is less strong and super flexy. That goes against the Bullitt DNA.

Some Bullitt's want to be practical, others want to bring out the high performance DNA that makes a Bullitt a Bullitt.

For the practicalist: a wide 306% Shimano Alfine internal gear hub that's a bit heavier, but low on maintenance. A Gates belt drive that runs 30,000km without replacement. The all-weather Bullitt.

Performance on a budget: a super light 20speed Shimano Deore system with a wide gear range, but higher maintenance. The consumer grade speedster.

Performance without compromise: the ridiculous Shimano XT system, with a massive gear range and 4-piston hydraulic brakes. The commercial grade speedster.

Carrying heavy stuff in a cargo bike means you need the most intuitive and powerful brakes possible. The Bullitt uses big 203mm hydraulic disc brakes, the same kind used on high performance downhill mountain biking. That may sound intense, but what it really means is lots of power, and near-perfect control.

The Alfine 8 Gates kit and Deore kit use TRP 2-piston hydraulic brakes. These are awesome brakes with remarkable control and stopping power. However, the XT kit uses 4-piston Shimano Zee calipers, offering the most intuitive control and stopping power.

These brakes aren't just meant to stop, they're meant to control speed, especially in corners and high contingency situations where you need to stop, suddenly.

Who are those white haired people ogling the DHL cyclist? Why, that's the writers Mom and Dad (partner-in-crime and longtime Curbsider Aaron in baseball cap ogles besides).

Like Babboe who supply TNT and PostNL, Nihola who supply Dansk Post, and Urban Arrow who supply UPS, Bullitt is also deep in the last-mile logistics game. Why is this important? Because commercial use is an empirical indicator of a products consumer-use durability. Unlike Babboe, Nihola, et al, Bullits were purchased by DHL to be fast. That means more curbs, more rider force, and generally, more strain.

A Bullitt bike is whatever you want it to be. While you can only choose one colour, it can change its colour quickly, to use a metaphor.

Need to carry stuff? Grab the Cargo pack. The cargo pack uses impact-resistant honeycomb boards, strong and light (using the same stress-skin and space-frame as aircraft construction).

Want to carry kids? Insert the foldable seat (which folds up to make lots of room for groceries), and install the canopy. Canopy is not the right word. It's an impact resistant, full-coverage roll-bar with a waterproof cordura cover that rolls up for sunny days.