(i) Events are run at a minimum overall speed of 15kph and a maximum overall speed of up to 30kph, with the following two exceptions. The maximum time allowance for the 200km shall be 13 hours 30 minutes, and for the 400km shall be 27 hours.
(ii) Only the standard distances and 1000kms may be organised. Thereafter events may be run at intervals of 100 km (ie 1200, 1300, etc).
(iii) No extra time is allowed for over-distance events though, where a rider’s finishing time is within the Brevet AUK limits, a Brevet AUK may be awarded.

RM Regulations are available online at the Randonneur Information website
http://www.lesrandonneursmondiaux.org