Box Components Box Four 8 Speed Compact Multi Shifter - 8 Speed - 22.2mm Bar Clamp - without Display PDP|Option Box Two is their most

Box Two is their most durable drivetrain that offers excellent performance

Ample leverage to assist actuation of the dropper post

Black XS-1275 features 10-52t range and full X-SYNC technology for best inboard and outboard shifting performance under load

Oversized shell for torsional stiffness

You know it will fit and work

Box Components Box Four 8 Speed Compact Multi Shifter - 8 Speed - 22.2mm Bar Clamp - without Display PDP|Option Box Two is their mostThe 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