We have 2 Holborn Challenge folding bikes, one used for about 10 minutes, the other unused, for sale. We bought them last year with the intention of using them in our motorhome this summer, but old age and creaky knees made us realise that it was not the best idea for us. They cost £150 new and have the following: • Steel frame. • 6 gears. • Shimano shifters. • Shimano SL-RS35 gears. • Shimano TY-21 rear derailleur. • Front V-type and rear V-type brakes. • Rigid suspension. • Steel forks. • Weight fully assembled 14kg. • 13 inch frame size. • 20 inch wheel size. • 25 to 37 inch inside leg measurements. • City style tyres. • Alloy rims. • Front and rear mudguards. • Self-assembly. We would like £100 each o.n.o., either separately or as a pair. We also have a gents and a ladies crash helmet to go with them.