The K2 Forged Stem is available in the ever-popular 150mm size (with 32° rise) which is pretty much spot-on for most 20" bikes, as well as the latest generation of high BB 24" and 26" bikes. The main draw of the new stem is the different bar clamp system which features two split-rings that clamp your bars. The advantage of this is much easier installation for higher rise bars which previously required having to splay open the clamping part of the 3D Forged stem. This new system gives a nice, wide clamping area and makes putting your bars on easier - all good.
The K2 Rear Hub is an evolution of the previous 'H'116 hub, this time featuring great quality bearings and a slotted hub shell to save weight.
And lastly, the Single Cage Titanium Pedals - some of the lightest pedals out there.