Box Components Box Four 8 Speed Compact Multi Shifter - 8 Speed - 22.2mm Bar Clamp - with Display YGroup_8156855894061 All the polycarbonate pieces are

All the polycarbonate pieces are solvent resistant

Radial Bearing Bottom Bracket for PF30 Framesets and Shimano 24mm Cranksets

5 L Lumbar - 130 g - 28 x 18 cm

Chain retention:Adjustable slider with co-molded soft rubber for sound reduction

This means more distraction-free descents with less awkward high fives from your saddle when the trail gets rowdy

Box Components Box Four 8 Speed Compact Multi Shifter - 8 Speed - 22.2mm Bar Clamp - with Display YGroup_8156855894061 All the polycarbonate pieces areThe 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