Challenge Flex Folding Commuter Bike 20" Wheel 6 Speed Shimano Gears Collection Excellent - Refurbished The smaller wheel diameter contributes

The smaller wheel diameter contributes to responsive handling in congested environments

The frame configuration emphasises a lightweight approach with a compact geometry typical of modern folding bicycle designs

With its 20-inch wheel geometry and innovative hinge mechanism

Premium 20 Inch 7-Speed Mountain Bike for Kids – Adjustable Children’s Bicycle with Storage Bag

Challenge Flex Folding Commuter Bike 20" Wheel 6 Speed Shimano Gears Collection Excellent - Refurbished The smaller wheel diameter contributesChallenge Flex 20" Wheel Folding Commuter Bike with 6 Speed Shimano Gears. The bike is fully operational, but it has been left unused outside for several months, so it is being sold as is. There is visible cosmetic surface rust on the frame and components, though much of this can be cleaned up with a bit of attention. The mechanical parts do work, though the tyres are a bit low and will need pumping up with some air. The central frame does fold as