absoluteBLACK Direct Mount Narrow Wide Chainring - Race Face - Easton Cinch Direct Mount - 3mm Boost - Round - Black - 9-12 Speed - 30T YGroup_7033457213485 With the Cura 4 Formula

With the Cura 4 Formula set themselves a very ambitious goal to try to exceed their own expectations

The universal head is compatible with Presta and Schrader valves and this model features a built-in gauge

Cons: Probably a bit overkill for XC or light trail riding

They are also a pretty good looking case so your phone won't look weird when it's not mounted on the bike

DF2 - DT Swiss 240s or 190s - FRONT

absoluteBLACK Direct Mount Narrow Wide Chainring - Race Face - Easton Cinch Direct Mount - 3mm Boost - Round - Black - 9-12 Speed - 30T YGroup_7033457213485 With the Cura 4 FormulaabsoluteBLACK is dedicated to producing the world's finest oval chainrings and were the first to crack the code to discover the correct shape and 'clocking' to make an oval chainring work. They learned how to maximize the part of the stroke where power is produced and minimize resistance where it isn't. The oval shape smooths the delivery of power throughout the pedal stroke and improves efficiency and energy conservation. Many other brands have