More than 1,500 cyclists will hit the road on Sunday to raise money for breast cancer awareness charity CoppaFeel.
The Classic Oxfordshire bike ride will start and finish at the Harwell Science and Innovation Campus on Curie Avenue.
There will be five routes for participants to choose, including 12 miles for families and 100 miles through the Vale of White Horse.
Prices vary from £8 to £24, depending on the route chosen. Start times are staggered from 7am to 11am, with long-distance cyclists setting off first.
Entries are still being accepted by visiting bike-events.co.uk
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