audax

plural audaxes

1. cyclingA non-competitive long-distance (often over 200 km) cycling event.

   […] the self-acknowledged stereotype of the audaxer as a socially awkward middle-aged man, […] carefully avoiding eye contact as a volunteer serves him his cup of tea and plate of baked beans in one of the draughty village halls that typically host audax controls.

   2019, Emily Chappell, Where There's a Will

   1 more example

   Probably the best-known aspect of audaxes is the brevet card. This is a small card you must have stamped at various checkpoints, called controls, along the route, to prove you’ve ridden the audax, completed each section within the time limit and not taken the train.

   2023 January 15, Paul Norman, “Everything you need to know about audax riding: events, brevet cards and bike setup explained”, in BikeRadar