This Sunday sees the return of the Hell of Ashdown cycle challenge. The ride, named because riders have to battle the elements in the middle of winter on a difficult hilly route.

The event, run by the Catford Cycling Club, is in aid of the Multiple Sclerosis society and is open to anyone up for the challenge. At just over 60 miles the tough route starts at Knockholt and goes as far south as the Ashdown forest, tackling some hellish climbs including Turners Hill; Groombridge Hill; Idle Hill and Star Hill. The goal is to complete the route within five hours to qualify for a certificate.

In addition, a new shorter event of 38 miles has been added as a test of stamina for the leisure cyclist. This will mean undertaking some steep climbs and bad weather but will miss out some of the more unforgiving climbs from the longer route. The aim for this one is to do it in three and a half hours to receive the certificate.

Participants need to book at least 30 minutes in advance and it will cost £5 on the day. For more information call organiser Rik Van Dieren on 020 8265 8842 or email vandierenr@ntlworld.com