Suzuki Gs1000 Performance Portfolio 1978-81, Paperback by Clarke, R. M., ISBN 1855205033, ISBN-13 9781855205031, Brand New, Free shipping in the US

Models covered are: Yoshimura, Dunstall, CS, XT, GS1000, HC, E, S, L, GT, E7. Articles include information on road, comparison and track tests, new model introductions, performance data, etc.