About Ebykr
Ebykr celebrates classic and vintage lightweight bicycles through provocative imagery and opinion. Ride along with us.
Tech Specs
Twenty-five 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
25
documented head to hub
Busiest decade
1950s
8 of the 25 machines
From France
13
the constructeur heartland
In the registry
8
sheets with logged serials
Featured build sheet · A new machine each week
Open the full build sheet
1967 Jo Routens Randonneur
Restored by Mariposa Bicycles in 2017, Robbins Egg Blue Finish, Mint Condition. Lefol Le Martele Front and Rear Fenders (Aluminum), Routens Style Front and Rear Racks (Made by Mariposa), Routens Style Carrier Boxes (Made…
| Frame | Jo Routens Frame, Reynolds 531, fillet brazed, reinforcing gussets, wraparound seat stays, front derailleur mount, rear derailleur mount, inward cantilever posts, fender/rack mounts, left chain stay light mount, dynamo mount, internal wiring, shift lever mounts, cable guides, pump pegs |
|---|---|
| Drivetrain | Specialites TA Pro 5 Vis Crank (Aluminum) |
| Brakes | MAFAC Racer Brakes (Cantilever, Inverse Rear) |
Decade
Type
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All 25 Build Sheets
Chronological, with each machine’s country, type, tubing and brakes
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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.