Thousands of people are sweating it out on their bikes this weekend for a good cause.
The 10th annual Enbridge Ride to Conquer Cancer is a two-day cycling event spanning over 200 kilometres.
The route starts at Exhibition Place and ends in Niagara Falls.
Organizers say every rider has to raise at least $2500 and this year $20,000,000 has been raised for the Princess Margaret Cancer Foundation.
That amount has set a record for the event.
The Ride to Conquer Cancer is Canada's largest cycling fundraiser.