À propos

The "Fantastic Fixed Gear Calculator" is proudly made and brought to you by the SURPLACE team.

All tires circumference data comes from the fantastic Sheldon Brown website.

Thanks to lajalousie for rectifying ambidextrous skid patch calculation method

Due to the lack of a good canvas and html5 support, it probably won't work under Internet Explorer, but who cares? - anyway, it works under Firefox, Opera, Safari, iPhone...

Please enjoy! and feel free to contact us if any suggestion :)