it allows you greater adjustment of your dropper lever or shifter position

Exterior waist adjustment

Spoke size compatibility: 4 different slots that will hold blades from 08

If you run tight fitting wire bead tyres that almost need the Hulk to get on and off

but once you've experienced it

Bell Sidetrack 2 MIPS Helmet - Youth - One Size Fits Most - Stars Gloss White - AS-NZS�2063-2008 Standard Do Not Ship Internationally it allows you greater adjustmentThe Bell Sidetrack 2 MIPS offers all around coverage, an easily adjustable fit system, and an adjustable visor making it a great option for young riders. 14 vents help to keep their head cool and sweat guide padding helps to keep the sweat out of their eyes. The helmet features a MIPS liner to provide extra protection for the brain from the effects of rotational impacts and the sharp styling should make for fewer complaints when it's time to put it