The valuable bike was used to raise funds for a disability day centre.
Chris Harrison, 50, a charity worker, noticed that his white Condor bike had been taken from the porch of his home in Garland Road, Poole this weekend.
CCTV footage has been recorded and sent to the police, which shows the thief on the bike.
Chris also posted this on his Facebook page and it has been shared over 300 times.
It is thought that the bike was taken sometime before 8pm on Friday December 1st.
Earlier this year Chris and two other charity workers completed a cycle journey of just under 1000 miles from Land’s End to John O’Groats. Chris and his team raised thousands of pounds for Dorset-based charity Diverse Abilities.