Lumen 01
Longtail
A long, low deck behind the saddle. Two children, four crates, one very large dog. Still fits a cellar bike lift.
- From€4,180
- Cargo deck80 kg
- Max system180 kg
- Wheels26 in
- Build slot6–8 weeks
Copenhagen workshop · Established 2012
Carry a life, not just groceries.
Every Lumen is commissioned by one rider, drawn around your height and your route, then hand-welded and test-ridden in our Nørrebro workshop. You receive a cargo bike that behaves like a tool, not an accessory.
- 6–10 weeksBespoke build slot
- 180 kgRider + cargo system
- LifetimeFrame weld warranty
From €4,180 incl. VAT · 20% deposit locks your frame slot · Free EU delivery on all builds
Frame builder: F.V.
35 km loaded test ride
Our bench is stocked with
- Rohloff
- Shimano
- Gates Carbon Drive
- Enviolo
- Magura
- Schwalbe
- SON
- Brooks England
Models
Three frames. Infinite commissions.
All three start on the same hand-welded method and the same service promise. The parts list is chosen around your route, your weather, and the heaviest thing you realistically carry—not the catalogue’s cheapest option.
Lumen 02
Front Box
A step-through frame around a welded 350 L front box. Built for bakeries, florists, couriers, and anyone carrying eggs for a living.
- From€5,250
- Cargo volume350 L
- Max system230 kg
- Wheels20 in
- Build slot7–9 weeks
Lumen 03
Tilt Trike
Independent tilting front geometry with a planted twin rear cargo deck. For stove deliveries, three children, or a bass amp and a cello.
- From€6,150
- Rear deck150 kg
- Max system240 kg
- Wheels24 in
- Build slot8–10 weeks
Configurator
Build your Lumen before it exists
Choose the systems now, refine every detail after a 45-minute fitting conversation. Nothing in this configurator is a fake starting price—bells, lights, guards, road-legal lighting, VAT, and EU delivery are already included.
Workshop method
Six weeks, measured by hand
Four people build your bike, but one frame-builder’s initials go on the head badge. Nothing is outsourced after welding and nothing ships until it has carried its intended load.
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Week 1
Fitting conversation
A 45-minute conversation about your inside leg, your route, your parking, and the heaviest thing you carry. We send a pricing sheet before any work begins.
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Week 2
Dimensioned frame print
You approve a dimensioned drawing: stack, reach, deck length, box depth, stand-over height, wheelbase. No tube is cut until you sign it.
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Week 3
TIG welding and alignment
One frame builder TIG-welds the frame on the jig, then cold-sets dropouts and bosses to under 0.5 mm alignment variance.
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Week 4
Wiring and drivetrain
Internal cable routing, dynamo lighting, brake sensors, wheel-building, and a full torque printout for your build sheet.
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Week 5
Loaded test ride
We load your cargo configuration and ride 35 km over cobbles, curbs, and Nørrebro’s worst cycle-crossing. A second mechanic signs off.
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Week 6
Hand-over
Delivered assembled, cleaned, and torqued. We fit saddle and bar height in your driveway, then hand you the signed build sheet.
Materials
Parts that can still be repaired in 2040
Cargo bikes spend their lives at load. We build them with standard, replaceable components and hand-finished aluminium, so a worn part is a 20-minute fix rather than a warranty argument.
- Frame: 7005-T6 aluminium, double-butted main tubes, hand-finished welds and internal cable routing.
- Brakes: Magura MT5 four-piston hydraulic discs with brake-sensor rear lighting on all builds.
- Tires: Schwalbe Super Moto-X or Big Apple, hand-tensioned 32H double-wall rims.
- Lighting: SON dynamo with USB charge option, road-legal EU beam pattern.
- Service: Parts stocked for eight years, first service after 500 km included.
| Specification | Lumen 01 | Lumen 02 | Lumen 03 |
|---|---|---|---|
| Frame | 7005 longtail | 6061 step-through | 7005 tilt trike |
| Cargo capacity | 80 kg rear deck | 150 kg / 350 L box | 150 kg rear deck |
| Max system weight | 180 kg | 230 kg | 240 kg |
| Wheel size | 26 in | 20 in | 24 in |
| Drivetrain options | Gates / Enviolo / Rohloff | Gates / Enviolo / Rohloff | Rohloff / Enviolo |
| Battery options | Bosch 500 / 625 Wh | Bosch 500 / 625 Wh | Bosch 625 Wh |
| Brakes | Magura MT5 | Magura MT5 | Magura MT5 twin rear |
| Build slot | 6–8 weeks | 7–9 weeks | 8–10 weeks |
| Warranty | Lifetime frame, 2 years parts | Lifetime frame, 2 years parts | Lifetime frame, 2 years parts |
Workshop
Not a catalogue. A jig, a torch, and four people.
Lumen started in 2012 because we kept receiving beautifully designed cargo bikes wrapped in six shipping boxes, with no one responsible for the welds. We do the opposite: you meet the person who builds your frame, and your build sheet stays on our wall until your bike is loaded.
Elmegade 27, 3rd floor
2200 København N, Denmark
- Workshop visits
- Thursday 13:00–18:00 · Friday 13:00–18:00 · Saturday 10:00–14:00
Bike-up route: Nørrebros Runddel station is 6 minutes by cargo bike, or 11 minutes on foot over Fælledparken’s western path.
Riders
What 2,000 km of daily cargo does
“I replaced a van with the Longtail. Pipes, a ladder, and a cordless drill kit have all gone through Søtorv traffic at 8am. It feels more planted loaded than empty.”
“Two children, a dog, and German groceries. Lumen adjusted the bench to my mother’s shorter reach, so she can take them to school without slowing the whole family down.”
“My Front Box is a rolling advert for the bakery. Three years in, still no interior rust and the brakes feel the same as the day we rode it home.”
Questions
Before you commit to a build slot
Can I test ride one before ordering?
Yes. We keep demo longtails and one front-box bike at the workshop on Saturdays from 10:00 to 14:00. If you buy within 14 days, we credit €75 of the test ride toward your build deposit.
How does payment work?
A 20% deposit locks your frame slot and the sign-off conversation is free until you approve the dimensioned drawing. The rest is due when your bike arrives, assembled. We accept card, MobilePay, bank transfer, and Danish finance plans in checkout.
What if I want to change something after welding?
Before welding, changes are free and common. After welding, paint packages, drivetrain, and cargo setups can still change at workshop cost. Frame geometry cannot move once the jig is set, which is why the dimensioned drawing step exists.
Do you ship outside Denmark?
EU delivery is included and assembled on arrival. Norway, Switzerland, and the UK ship at cost, and we email the customs paperwork before your bike leaves Copenhagen.
What does the warranty cover?
Lifetime warranty on frame welds made in our workshop. Two years on components such as hubs, motors, brakes, and lights. Crash replacement is available at material cost plus workshop labour, for any rider, not just the first owner.
Can you service a second-hand Lumen?
Yes. We keep build sheets and geometry records for every frame, including those bought second-hand. Bring it to the workshop and we will run the same torque and alignment check used on new builds.
Available build slots
Your frame goes on the jig the week you approve it.
Send your configured build or raw cargo problem to the workshop. We reply within one business day with a written build sheet, an available slot, and the real number for the service you will need.