CARGO BIKES, DRAWN & BRAZED TO ORDERKØBENHAVN K
A cargo bike, made to measure.
Lumen builds one model — the Lumen L front-loader — one frame at a time, in a workshop on Refshaleøen. Drawn for your body, your street and whatever you carry. Brazed, painted, delivered in ten to fourteen weeks.
- EST. 2016
- 1,243 FRAMES DELIVERED
- 10-YEAR FRAME WARRANTY
- DELIVERY 10–14 WEEKS
01THE IDEA
One bike, drawn around your life.
Most cargo bikes come in three sizes. People don’t. So every Lumen frame is drawn for one rider, one household, one street — then brazed to outlive the trend that bought it.
The tubing is double-butted Cr-Mo, mitered by hand and joined with silver fillets — not welded robots, not extruded aluminium. Steel rides like a good fork should, forgives a pothole, and bends back when a courier says it won’t.
It is also repairable forever, in any workshop in Europe. Our first frames from 2016 are on their second paint and their third household. That was the plan.
The brief is Copenhagen: a 36-cm load floor so the kids climb in themselves, a low-trail fork that steers loaded like it does empty, a hallway-width turning circle, and salt-proof cable routing. Then we measure you — not the average of you.
12 MM THROUGH-AXLE
FILED BY HAND
CABLES RUN INSIDE THE FRAME
02MADE TO MEASURE
Start with the saddle. Work backwards.
One number changes the whole drawing. Drag the slider — this is the same sheet we send you for sign-off before the torch is lit.
FIG. 5 — YOUR GEOMETRY, LIVEDRAG THE SLIDER
03THE BUILD
Spec it like you ride it.
Every choice redraws the sheet and the price. All of it is reversible until the brazing starts.
FIG. 6 — YOUR BUILD · SIDE ELEVATIONPAINT · KRIDT
Nothing is charged today. The deposit link arrives with your frame drawing.
EVERY LUMEN L LEAVES THE WORKSHOP WITH —
- FRAMESETCr-Mo, fillet-brazed, aligned on the bench
- FORKLow-trail Cr-Mo, 45 mm offset
- WHEELS36 spokes, brass nipples — built in-house
- TIRESSchwalbe Super Moto-X, puncture-guard
- BRAKESMagura MT5 · 4-piston · 203/180 mm
- DRIVETRAINShimano Nexus 8, belt-ready
- COCKPITSwept bar, cork grips, drawn stem
- SADDLELeather, steel rails
- LIGHTINGWired rear light, sealed loom
- FITTING & DELIVERYSession, hand-over ride, our van
Pedals, kickstand, first service and delivery in Denmark are included. Yes, really. Prices include VAT; the frame is guaranteed ten years, everything else two.
04THE PROCESS
From first mail to first load.
Ten to fourteen weeks — most of it paint curing and us refusing to rush your head tube.
Say hello
Write, call, or come by. We ask about you: who rides it, what it carries, where it sleeps, which hills are on the way.
The fitting
Measured at the workshop or over video. Your frame drawing arrives as a sheet like the ones on this page — you approve it, or we redraw it.
Slot & deposit
€500 books your place on the bench. Build slots open monthly; everything stays changeable until the tubing is cut.
The build
Miter, braze, align, paint. Photographs from the bench every Friday — no surprises, no white boxes.
Handover
Fitted, torqued, and ridden — loaded with whatever you brought. Thirty days of free adjustment, ten years of warranty.
05WORD OF MOUTH
We sold the car before the bike was even finished. Two kids, a dog and the weekly shop — the school run is the best part of my day.
CAMILLA F. · FREDERIKSBERG
FAMILY BOX · SIGNAL RØD
Fourteen thousand kilometres as a courier. One wheel-true, one set of pads. Mikkel still greets me by name — and by bike.
JONAS E. · NØRREBRO
FLATBED · COURIER SPEC
I’m 1.93 and every bike I’ve owned was a compromise. This is the first one that isn’t.
HENRIK S. · AMAGER
ASH RAIL · ANTRACIT
SINCE 2016·1,243 FRAMES·0 WRITTEN OFF·61% OF OWNERS SOLD A CAR
Their fleets ride on Lumens too: Kaffelab Nord · Værftets Bageri · Nordisk Frugt — and about twelve hundred households.
06FAIR QUESTIONS
Asked before every deposit.
Yes. Ride the workshop bikes Thursday to Saturday — bring what you’d actually carry. Inside Greater Copenhagen we’ll also leave a demo bike with you for a weekend, against a refundable deposit.
About sixty hours of skilled labour, honest tubing, and wheels built by the person who trues them. We publish the kit list because there’s nothing to hide and no “premium tier” to upsell you later — the options you see are all the options there are.
Gears and brakes are standard Shimano and Magura parts — any bike shop can service them. The frame is guaranteed ten years, and because it’s fillet-brazed steel it stays repairable for life, even after a crash. The first year of service is on us.
Across Denmark we deliver personally, adjusted and ridden. EU-wide we ship crated and nearly assembled — five bolts and a torque key, both included in the box.
If your streets are flat and your loads under 40 kg: no — save the €1,750. If there’s a bridge, a headwind habit, or three kids uphill: yes, and take the 540 Wh. We’ll tell you honestly which one you are.
Salt was the design brief: fully internal routing, waxed frame tubes, sealed bearings and stainless hardware throughout. We still recommend wiping it down — out of pride, not rust.
07THE WORKSHOP
The kettle is usually on.
Test rides happen Thursday to Saturday — bring the kids, bring the cargo. Otherwise we answer email within two working days, in plain language, with no follow-up funnel.