No drop in performance

Multiple coaching sessions crafted by Professional Cycling and Triathlon coach Murray Healey

rear doors

easy-access storage and hand warmer

Supplied with a hinged 22

Box Components Box Four 8 Speed Shifter - 8 Speed - 22.2mm Bar Clamp - Multi Shift New Arrival No drop in performanceThe 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