There are pleanty of clubs about - to name a few - Waggoneers, Peasedown St John; Shamen, NE of Radstock, Cripple Club, Bath; Celtic Crew, Calne; Moonrakers in Devizes; MattBlackRat.com (an online club) but Warminster ish; Vulgaris (other side of the M4), Dying Breed, Westbury; there's also MC clubs in Trowbridge (for Wiltshire), Sodbury & N Somerset and Bristol/Swindon (81). It all depends on what you're looking for and what commitment you can give. Closest to you is the Waggon & Horses in Peasedoen St. John for MCC.