Mount Leinster has been used in stages of the Tour of Ireland and on many occasions in the FBD Insurance Rás (Rás Tailteann). It may be climbed from the Borris side in County Carlow or the Bunclody side in County Wexford. Ascending from Borris the climb is long and has an average gradient of 6.9%. The last are very tough reaching a gradient of almost 16%. Although the climb from Bunclody is slightly longer at its average gradient is 5.9%. The last of this climb is difficult with a gradient of 16.3%. The mountain is also used by The ML Syndicate (mountain biking club) who use the area for trail riding and MTB sporting events .