Brompton DR Gear Cable & Outer Integrated Shifter Derailleur gear cable for Brompton bikes from year 2017. The length of gear cable you require for your Brompton is dependent on the height of the handlebars, so please select the cable made for your bars - H, M, P or S-type. Available in four lengths For H, M, P or S-type bars For integrated gear shifters (introduced on year 2017 Brompton folding bikes) Integrated means that the gear shifter attaches directly to the brake lever - not clamped to the handlebars