We've broken the mould with our kid’s bikes. By putting 26" wheels on a kids MTB we've given a boost in performance similar to an adult switching to a 650b/27.5" Trail Hardtail. More confidence, more control & easier riding. With SRAM NX 1 by 11 spec & a trigger shifter the 405 really is a scaled down version of our award winning 900 series bikes. We have speced a XSYNC Direct Mount chainring so multiple chainrings are available to tune this bike to the size of the rider. The 405 also comes with Whyte's own Get-a-Grip seat post clamping system. This easy to use clamp allows the post to be raised or lowered on the trail, even with small cold hands.