The velodrome erupted as ParalympicsGB went head-to-head in a thrilling gold medal battle in the tandem event.
Anthony Kappes and Craig MacLean came out on top in the clash - which pitted them against Neil Fachie and Barney Storey in the sprint final.
The crowd rose to their feet, producing a cauldron of noise on the final day of track cycling action.
Kappes and his pilot MacLean comfortably won both races in the best of three match-up. The result meant a gold and silver for the pairings in another successful day for ParalympicsGB.
The win came minutes before Darren Kenny, Rik Waddon and Jon-Allan Butterworth were narrowly pipped into second place in the team sprint final. It proved to be the final action in the velodrome, which saw ParalympicsGB win a total of five gold, seven silver and three bronze medals over four days.
The dramatic scenes capped another medal-laden day in which Britain won three gold, four silver and one bronze medals.
David Smith, James Roe, Naomi Riches, Pam Relph and cox Lily van den Broecke were given a royal seal of approval as they won gold in front of the Duchess of Cambridge at Eton Dorney.
There was also success in the Olympic Stadium, as Welshman Aled Davies won gold in front of the roaring crowd. Long jump star Stef Reid, 27, set a lifetime best as she leapt to silver - recording two new Paralympic records in the process.
Sophie Wells, 22, from Newark, Nottinghamshire, also landed silver at the equestrian centre at Greenwich Park. The rider, who was born with amniotic band syndrome, which affects her joints, won second place in the Grade IV individual event.
Britain now sits second in the table with 12 gold, 21 silver and 12 bronze - taking the medal haul to 45.