A new design from Donhou Bicycles in the UK that features a huge 104-tooth chainring, with a diameter of nearly 17 inches (43cm) (most road bikes have about 50 teeth in their largest ring).
Theoretically, the hand-made, ultra-low handlebarred bike – which premiered at the UK Handmade Bicycle Show in Bristol earlier this month – can reach speeds of 100mph, though it’s only been clocked to 67mph so far.
