Gear Up Girl - 20km, 40km and 60km bike rides start from 7am and finish by 2pm.
All three events finish in Don Lucas Reserve in Cronulla. Road closures will be in place around the finish area to support the event and participants.
From 6am to 2pm Mitchell Rd between Sanderson St and Don Lucas Reserve car park will be closed.
Motorists are advise to exercise extra caution while the event is underway as cyclists will be sharing the roads.