Hope’s new floating discs have a redesigned rivet and centre that reduces the overall weight of the disc while still ensuring excellent durability. They can be used as a replacement disc with many other braking systems. Although we will continue to manufacture 183mm discs and their corresponding H and J mounts, we have decided to standardise on the more common 180mm disc size. This requires the use of two new mounts (L and M). Available Sizes: 140mm, 160mm, 180mm, 183mm, 185mm, 200mm, 203mm, 205mm.