Observed arrival · 2026-10-13
A Bicycle Builder That Checks the Interfaces
VariVelo is a browser-based parametric bicycle configurator for building bikes from real component geometry and checking whether parts fit.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Cyclists planning custom builds and checking component compatibility
- Worth noticing
- The page names ETRTO, SHIS and ISO 4210, while explicitly labeling its StVZO lighting check a simulation, not type approval.
Field notes
The project says it places and dimensions parts using real interface geometry, including bottom-bracket widths, headset stack heights and dropout spacing. Its listed sources include ETRTO, SHIS and ISO 4210, and it says approximation is labeled where published figures are unavailable. The stated device limits exclude phone-based building, though phones can view bikes.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
⊠LoginAccess appeared gated
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
One card from the complete issue