The annual hill climb championship, staged by Gainsborough Aegir Cycling Club, was won by Daniel Nicholson.
Nicholson was the fastest rider in the demanding and strenuous event, which covered a 541-yard course that acsended the steep climb of Thonock Hill.
Nicholson, a member of Aegir, clocked a time of one minute, 36 seconds to finish in front of runner-up Trevor Halstead, whose time was two minutes, 15 seconds.
After the event, cyclists enjoyed a 15-mile leisure ride from Thonock Hill to Wildsworth and through Laughton Woods to Morton before returning to Gainsborough.
Meanwhile a presentation event was held at Hilltop Social Club in Gainsborough to mark a sponsored cycle-ride that earned £420 for the Lincolnshire and Nottinghamshire Air Ambulance.
The money was raised as part of the 2016 National Bike Week air ambulance cycle ride, which was a joint event between Aegir, West Lincolnshire Cyclists Touring Club and the Gainsborough Cycles shop, as well as individual cyclists.
Among the riders to take part was Aegir stalwart Halstead, who was presented with the Colin Smith Memorial Shield after raising £82.28.
The ride, held in June, was a big hit with many cyclists. It was suitable for individuals of all ages and also for families, underlining the enjoyment and health benefits that can be gained from bike-riding in your leisure time.