Change speed on a bike needs a real expertise. It is necessary to manipulate one or two shifters, alternatively or simultaneously, which can offer up to 27 combinations. Some of them are banned, some others are repetitive. TwinShift is a single shifter which gives you access in one movement to a logical and progressive gear ratio suite. By this way, are always on the good ratio. After few years research, we have now a 100% functional prototype, protected by international patents. TwinShift is a simple product, fully mechanical, without electronic or battery. So it is reliable and inexpensive. TwinShift exists for bikes equipped with 3x6, 3x7 and 3x8 drivetrains. It is compatible with main of existing frames and components. More details in our web site www.twinshift.bike
