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The 1924 Isle of Man Tourist Trophy saw the introduction of the Ultra-Lightweight class for motorcycles of 175 cc capacity that was run only twice, in 1924 and 1925. This was the second year of the Sidecar race that would also be dropped after 1925.

The Ultra-Lightweight TT began with a massed-start for competitors rather than pairs as with the normal time-trial format of the TT races. The winner of the first Ultra-Lightweight TT was Jock Porter riding a New Gerrard at an average speed of 51.21 mph (82.41 km/h).

The Junior TT race was won by Ken Twemlow on a New Imperial at an average speed of 55.67 mph (89.59 km/h). In the same Junior race, Jimmie Simpson set a new lap record of 35 minutes and 5 seconds at an average speed of 64.54 mph (103.87 km/h) on an AJS – the first average lap-speed over 60 mph. The Lightweight and Senior TT races were run in conjunction, and Eddie Twemlow (brother to Ken Twemlow) riding a New Imperial won the six-lap race in 4 hours, 5 minutes and 3 seconds, an average speed of 55.44 mph (89.22 km/h).

The Senior TT, like the Junior race, was also run at a record breaking pace and was the first with a race-average speed over 60 mph (97 km/h). The six-lap race was won by Alec Bennett riding a Norton in 3 hours, 40 minutes and 24. 6 seconds, with an average speed of 61.64 mph (99.20 km/h).

Contents

Senior TT (500cc)Edit

Rank Rider Team Speed Time Laps
1   Alec Bennett Norton 3.40.24.6 61.64 mph (99.20 km/h) 6
2   Harry Langman Scott 3.41.54.2 61.23 6
3   Freddie Dixon Douglas 3.45.46.4 60.17 6
9   J A Stuart Norton 3.59.05.0 6

Junior TT (350cc)Edit

6 laps (226.38 miles) – Mountain Course.

Rank Rider Team Speed Time
1   Kenneth Twemlow New Imperial 56.68 mph 4:04.49.0
2   S. Ollerhead DOT 54.91 mph 4:07.26.2
3   I. H. R. Scott AJS 54.55 mph 4:09.01.6
4   Cecil Ashby Montgomery 53.39 mph 4:14.27.4
5   Harold J. Willis Montgomery 52.80 mph 4:17.18.8
6   J. L. E. Emerson DOT 4:20.39.8
7   F. Simpson Jnr Excelsior 4:28.55.2
8   L. Nicholson OEC-Blackburne 4:31.38.0
9   F. R. Marston AJS 4:31.39.0
10   J. W. Shaw Zenith 4:43.48.4

Lightweight TT (250 cc)Edit

6 laps (226.38 miles) – Mountain Course.

Rank Rider Team Speed Time
1   Edwin Twemlow New Imperial 55.44 mph 4:05.03.0
2   H. F. Brocklebank Cotton 52.85 mph 4:17.05.0
3   J. Cooke DOT 52.54 mph 4:18.03.0
4   L. J. Cridland JES 51.84 mph 4:22.03.0
5   P. Pike Levis 51.16 mph 4:25.31.0
6   H. F. Harris New Imperial 50.50 mph 4:29.01.0
7   F. Simpson Jnr Excelsior 4:32.50.0
8   C. G. S. Cleare OK-Supreme 4:38.50.0
9   C. W. Johnston Cotton 4:40.23.0
10   Geoff S.Davison Levis 4:52.40.0

Ultra-Lightweight TT (175 cc)Edit

3 laps (113.00 miles) – Mountain Course.

Rank Rider Team Speed Time
1   Jock Porter New Gerrard 51.93 mph 4:21.37.0
2   Bert le Vack New Imperial 51.14 mph 4:26.19.0
3   D. Hall Rex-Acme 49.53 mph 4:34.20.0
4   R. Gray Rex-Acme 49.31 mph 4:35.29.0
5   N. Black Cedos 49.25 mph 4:35.36.0
6   L. Horton New Imperial 49.15 mph 4:36.29.0
7   P. Pike Levis
8   Wal Handley OK-Supreme
9   Alec Bennett Diamond
10   F. Simpson Jr Excelsior

Sidecar TT (500 cc)Edit

Rank Rider Team Speed Time Laps
1   George H Tucker Norton 2.07.48 51.31 mph (82.58 km/h) 3
2   Harry Reed DOT 3.26.44.0 43.80 3
3   A Tinkler Matador 3.33.08.0 42.49 3

External linksEdit