Greatest vertical ascent on bicycle in 12 hours (team)

Greatest vertical ascent on bicycle in 12 hours (team)
Who
Steve Collins, Tony Collins
What
9,401.6 metre(s)
Where
United Kingdom (Halstead)
When
Age Restriction: Applications for this record title will only be accepted if the applicant is 16 years of age or over.

The greatest vertical ascent by bicycle in 12 hours by a team is 9,401.6 metres (30,845 ft 1.7 in) and was achieved by Tony Collins and Steve Collins (both UK), in Halstead, Essex, UK, on 2 August 2015.

Tony and Steve are brothers, and cycled together for the entire time.