In the 1928 Isle of Man Tourist Trophy the newly developed 'positive-stop' foot gear-change by Velocette gave Alec Bennett his fifth TT Race win in the 1928 Junior, in the time of 3 hours, 50 minutes and 52 seconds, at an average speed of 68.65 mph (110.48 km/h), and setting a lap record at an average speed of 67.19 mph (108.13 km/h), with his team-mate Harold Willis coming second.
The 1928 Lightweight TT Race was led from start to finish by Frank Longman on an OK-Supreme motorcycle at an average speed of 62.87 mph (101.18 km/h). In contrast the 1928 Senior TT Race was held in heavy rain and mist. The bad race conditions produced many retirements and a slow average speed. The eventual winner of the 1928 Senior TT Race was Charlie Dodson, riding a Sunbeam motorcycle, in 4 hours, 11 minutes and 40 seconds, at an average speed of 62.98 mph (101.36 km/h).