Longest marathon static cycling

According to Official Guinness Records,

The longest marathon static cycling lasted 268 hr 32 min 44 sec and was achieved by Jamie McDonald (UK) in Gloucester, Gloucestershire, UK, on 8-20 December 2012.

For a complete list of 2012 records, please visit 2012 Guinness Records in United Kingdom.

Other United Kingdom records that might interest you:

• Longest duration Malteser blowing
• Fastest 10 km carrying a 40 lb pack
• Heaviest weight lifted by both eye sockets
• Largest walking bus
• Largest cup of coffee