This One Tire in Tan Wall is made for Brompton by German tire experts, Schwalbe. It was made exclusively for the CHPT3 bike in 2019 and we are lucky enough to have managed to get some spares. So get them while you can.
It's full slick, narrow profile and ultralight Kevlar bead make this the fastest and lightest tire available for a Brompton. This tire is most at home on city streets for fast commutes but because of its lower profile and foldable Kevlar bead it is great for touring too.
The One should be kept at a higher pressure than the Marathon or Marathon Racer making these lightweight slicks the fastest Brompton tire in the range. When you combine that with the slightly smaller diameter, the gearing ratio is lowered by 2.5% so we recommend pairing these tires with a +8% (54t) gear ratio.