Box Components Box Four 8 Speed Compact Multi Shifter - 8 Speed - 22.2mm Bar Clamp - with Display Images Uploaded - Ready for Review A self-cleaning tread design actively

A self-cleaning tread design actively sheds mud and loamy soil

Biodegradable and petroleum free

6mm diameters

Who's this item for: Riders after tubes which are compact

Take your safety to the next level with a superior 260° visibility

Box Components Box Four 8 Speed Compact Multi Shifter - 8 Speed - 22.2mm Bar Clamp - with Display Images Uploaded - Ready for Review A self-cleaning tread design activelyThe Box Four shifter's main features aren't strikingly different from Box Three's. The key difference is its 8 speed platform. They've chosen to modernise the 8 speed in much the same way they did the 9 speed for Prime 9. Just like the Prime 9, the Box Four shifters take advantage of the "less is more" theme and exploit durability, simplicity, and reliability. Available as a multi shift (pull several gears at once) or single shift shifter (a sound