Box Four 8 Speed Shifter Wide Maximum recommended user weight is

Maximum recommended user weight is 99 pounds

Less rotating weight means faster acceleration

adding an extra tooth to each of the three highest gears

The Box One Prime 9 chain is protected by a dual coating process: nickel plating for corrosion resistance

Box Four 8 Speed Shifter Wide Maximum recommended user weight isThe Box Four shifter's main features aren't strikingly different from Box Three's. The key difference is its 8 speed platform. We've chosen to modernize the 8 speed in much the same way we 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 choice