1989 Ultra Lightweight TT
Course name: Mountain (post 1914)
Course length: 75.46 miles (2 laps)
Competitors
| Position | Competitor(s) | Time | Speed | Machine |
|---|---|---|---|---|
| 1 | Dunlop, Robert | 0:44:08.00 | 102.56 | Honda |
| 2 | Lougher, Ian | 0:44:23.80 | 101.98 | Honda |
| 3 | Fogarty, Carl | 0:44:41.80 | 101.29 | Honda |
| 4 | Newton, Ian | 0:44:46.20 | 101.13 | Honda |
| 5 | McGarrity, Michael | 0:45:21.60 | 99.81 | Honda |
| 6 | Swallow, Richard | 0:45:40.20 | 99.13 | Honda |
| 7 | McCallen, Phillip | 0:45:49.40 | 98.8 | Honda |
| 8 | Nobbs, David | 0:47:37.20 | 95.07 | Honda |
| 9 | Ward, Steve | 0:47:44.80 | 94.82 | Morbidelli |
| 10 | Shields, Dave | 0:48:21.40 | 93.63 | Honda |
| 11 | Lennon, Reg | 0:48:28.00 | 93.41 | Honda |
| 12 | Mason, Steve | 0:48:32.80 | 93.26 | Honda |
| 13 | Barton, Chris | 0:48:54.40 | 92.57 | Honda |
| 14 | Salveson, Tim | 0:49:07.40 | 92.16 | MBA |
| 15 | Topping, Michael | 0:49:16.20 | 91.89 | Honda |
| 16 | Ritchie, Trevor | 0:49:48.40 | 90.9 | Honda |
| 17 | Trollope, Dennis | 0:50:01.00 | 90.52 | Yamaha |
| 18 | Gabbott, Steve | 0:50:20.20 | 89.94 | Honda |
| 19 | Chatterton, Mick | 0:50:35.60 | 89.49 | Honda |
| 20 | Robertson, William | 0:51:17.60 | 88.26 | Honda |
| 21 | Hanna, Clifford | 0:51:53.80 | 87.24 | MBA |
| 22 | Rowe, Les | 0:52:02.20 | 87 | Honda |
| 23 | Rogers, Jimmy | 0:53:12.60 | 85.08 | Honda |
| 24 | Hughes, Gerry | 0:53:19.60 | 84.9 | Honda |
| 25 | Richardson, Melvin | 0:53:21.60 | 84.85 | Honda |
| 26 | Judkins, Leslie | 0:55:13.20 | 81.99 | MBA |
| 27 | Beattie, David | 0:57:42.00 | 78.46 | MBA |
| 28 | Flynn, Gerald | 1:02:29.00 | 72.46 | Honda |
| R | Caughey, Alan | Honda | ||
| R | Moffitt, Dave | Honda | ||
| R | Roberts, Eddie | Honda |