About Ebykr
Ebykr celebrates classic and vintage lightweight bicycles through provoking imagery and opinion. Ride along with us.
Tech Specs Database
Tech Specs
Twenty-three fully documented build sheets — every component on every machine, from headset to freewheel, recorded the way a period mechanic would have specified it. Filter by decade, type or country, and compare any two machines side by side.
Build sheets
23
documented head to hub
Busiest decade
1950s
8 of the 23 machines
From France
12
the constructeur heartland
In the registry
8
sheets with logged serials
Featured build sheet · A new machine each week
Open the full build sheet
1950s Mercier Porteur
Fine craftsmanship, original except handlebar and tires, lovely bicycle.
| Frame | Mercier Porteur, Painted Nervex Lugs, Lug Outlining, Handpainted Accents, Coaster Brake Reinforcement, Fender/Mudgaurd Mounts, Rack Mounts, Pump Pegs |
|---|---|
| Drivetrain | Mercier, Cottered, 170mm, 46T, Steel |
| Brakes | MAFAC, Criterium Model, Cantilever, Aluminum (front only) |
Decade
Type
Country
All 23 Build Sheets
Chronological, with each machine’s country, type, tubing and brakes
No builds match those filters.
Compare
Your Machine Belongs Here
The database grows one documented bicycle at a time
Own a classic lightweight with a story? Submit your bike and an editor will work with you to turn it into a full build sheet — photographed, documented and preserved alongside the machines above.