ATB T&C wrote:55. Riders must attach the timing chip provided by Bicycle Victoria in the correct manner to their bicycle prior to commencing the Ride and keep it attached for the duration of the Ride.
which prompted me to check the event information page...
http://www.bv.com.au/general/great-rides/92853/ wrote:This year for the first time we will be using mandatory timing chips!!
You will be provided with a timing chip to monitor your performance and determine whether or not you are achieving your goal. The timing chips will be disposable and sent out in your rider kits with detailed instructions on how to attach to your bicycle. Look out for further information.
So remember, no tag no start!