The classic freshnlo Pedal for Scotland ride, the challenge ride is now in its 15th year. The 47 mile Glasgow to Edinburgh ride is Scotland's biggest bike ride and attracted 8000 participants last year.
The reason for the ride's huge popularity is the combination of a great route that uses a mixture of closed roads, quiet back roads and cycle paths and the fact that it takes in Scotland's two largest cities via stunning countryside. It's the perfect challenge for both regular cyclists and those who haven't cycled in a while - a few weeks training is enough to get in shape.
There are rest stops around every ten miles serving free refreshments, plus a free lunch at the beautiful Linlithgow Palace, topped off with entertainment and activities in Edinburgh, making for the perfect active day out for groups of friends, family or work mates. Transport can also be booked to get you and your bike to the start, or home from the finish.
The Challenge Ride costs £21 for adults and £12 for under 16s/over60s.
Register four riders in a team and the third person rides for free.
(Only available on the Challenge Ride)