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Ducati Meccanica
Posts: 2,467
Join Date: Dec 2001
Location: North Yorkshire
Mood: Is 112 dB loud enough?? What??
Lily, lap timers require a infrared beacon trackside at the start/finish line. These for the rider's information only and are completely seperate from the race organiser's requirements. Many of them such as Derby-Phoenix or NewEra require a transponder to determine race finishing order and lap times. Transponders are of no use to the riders themselves.
If your race club requires a transponder, they'll tell you which one and you need to buy one. If they don't require one, don't buy one. If you want to keep track of your lap times for racing, practise, and trackdays you can choose from several makes of laptimers.
[Edited on 17-2-2005 by Felix]
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