When Sat, Aug 29, All day Source BikeReg link Calendar iCal Download Description The 11th Annual Rose Mountain Rumble (RMR) takes place Saturday, August 29th, 2026. Registration opens 7:00 AM, rolling starts begin 7:30 AM. The RMR is a non-timed gravel ride that tours the scenic dirt roads of Lyndeborough, New Hampshire and surrounding towns. We welcome riders of every ability and offer a variety of route options from a 25-miler for more casual riders, an intermediate 45-miler, to 66 and 80-mile courses that challenge the most competitive gravel grinder. The RMR is capped at 150 riders. All the routes begin and end at Lyndeborough's historic Center Hall. The 25-mile course is marked, while the 45, 66 and 80-mile courses are not. Riders need to be prepared to follow provided cue sheets and are strongly encouraged to download the supplied GPX courses ahead of time which can be found at www.rosemountainrumble.com on the Courses page. Registration includes water/snack stops, a delicious post-ride lunch provided by the Wilton-Lyndeborough Women’s Club, and a tee-shirt custom-designed each year by local bike builder and graphic artist Kris Henry. Net proceeds benefit the Piscataquog Land Conservancy, a regional land trust that has been protecting open space in southern New Hampshire since 1970. We are holding the 2026 registration fee level with last year at $125 per rider. To help younger riders be part of the Rumble, we are continuing our discounted registration fee for riders 18 and under. Just contact us and we'll send you a discount code to use at checkout. We can't wait to see you…get ready to rumble! - Team RMR