More than 400 riders have already signed up to cycle around Huntingdonshire in aid of the appeal to build an extension to the cancer unit at Hinchingbrooke Hospital. Closing date for entries into the charity bike ride from Alconbury Weald is next Wednesday (June 25). There is a choice of routes from 30, 60 or 100 miles. There is also a shorter, traffic-free ride for families, which costs £5 for a family of four. Entry forms and cheques to the Woodlands Centre can be sent to The Hunts Post office or brought in on the day. INFORMATION: The 100 and 60-mile routes cost £25 and the 30-mile ride is £15. To enter, visit www.wheelsinwheels.com. Entries for the long routes can be made on the day but will be charged more. To download a family form, visit www.huntspost.co.uk.