BENGALURU (Reuters) -U.S. big-bike maker Harley-Davidson and British rival Triumph have revved up India's premium motorcycle market with aggressively priced models that analysts said could dent the over half-century dominance of local champion Royal Enfield. This time, they are making the bikes in India with domestic partners to bring prices below 233,000 rupees ($2,841). "These are aspirational brands," said Kotak Securities auto analyst Rishi Vora.