01 — Frame
6061 alloy · hydroformed · 68° head angle
Welds you can see, geometry you can trust. Long wheelbase, low standover, no toe overlap.
[ One model · three sizes · zero chain grease ]
Your commute, flattened.
Halfstep One is a 25 km/h mid-drive commuter with a 540 Wh battery hidden in the downtube, a belt instead of a chain, and nothing on it that doesn't earn its weight. The parts you'd pick — already picked.
- Weight
- 14.9 kg
- Battery
- 540 Wh
- Assist to
- 25 km/h
[ Exploded view ]
It comes apart. That's the point.
Scroll, and the bike separates into the six assemblies it's actually made of — every spec printed on the part it belongs to, every part serviceable with a 4 mm hex key. Then it goes back together, because that's the other point.
[ Halfstep One — service diagram ]
assembled · 06 assemblies · 00 spare bolts
Every part, stated plainly.
02 — Motor
65 Nm mid-drive · assist to 25 km/h
Torque where the pedals are, so it feels like legs — not a launch.
03 — Battery
540 Wh · 0–100 % in 4 h · 2.9 kg
Slides out of the downtube in one click. Charge at your desk, not in the stairwell.
04 — Front wheel
700c × 47 mm · reflective sidewall
Wide enough for tram tracks and February. Puncture belt as standard, not as an option.
05 — Rear wheel
5-speed internal hub · carbon belt
Shift standing still at a red light. The belt never wants oil and never marks your trousers.
06 — Saddle + post
steel rails · 40 mm suspension post
The city has potholes. Your spine shouldn't have to read them out loud.
[ Configurator ]
Three decisions. We made the rest.
Frame size, battery, paint. Everything else — motor, belt, tyres, lights — is the same on every Halfstep One, because it's already the right part.
[ Range ]
Honest kilometres.
Range claims are usually weather reports from a lab. Ours is a calculator — your weight, your hills, your assist level. Move the controls; we'll stand by the number.
Estimated range · 540 Wh pack
54km
≈ 3.9 commute days between charges (14 km/day)
Assumes 20 °C, tyres at 4 bar, no headwind heroics. Deep winter takes ~15 % off.
[ Riders ]
People who stopped driving.
Unedited, except for length. We asked for the number that changed their mind.
★★★★★ 5.0
I timed it. Door to desk: 24 minutes. The car took 31, plus a parking app, plus the mood.
★★★★★ 5.0
Bought it for the hill on Verlaan Street. Six months in, the hill is a rumour I no longer believe.
★★★★☆ 4.8
One charge a week, zero chain grease on my trousers all winter. The belt drive is the whole argument. Docked 0.2 because I wanted a second bottle mount.
[ Reserve ]
Get in the next batch.
We build in batches of two hundred, because that's the number one line can build well. A deposit holds your slot; your card is only charged the rest when your frame hits the paint booth.
- Batch 07 closes at 200 frames — 61 slots left
- €100 deposit, refundable until your battery is bolted in
- Ships 98 % assembled — pedals, front wheel, ten minutes
- Test rides: Rotterdam · Hamburg · Copenhagen