Magene QED Chainring BPW the Centaur rear derailleur is

the Centaur rear derailleur is the top component in its class - and all at 15 grams lighter than its competitors

Valve connection: Direct

Manufacturer recommends: 250 lbs

built from anodised aluminium with resin pistons for a lightweight

Magene QED Chainring BPW the Centaur rear derailleur isQED Lightweight Split ChainringAdvanced Level Witness Every Transmission of Spirit and StrengthExquisite Balance of Stiffness, Weight and AerodynamicThe QED split chainring features a hollow design, which can greatly reduce the overall weight. This method of reducing weight, wont affect the integrated stiffness of the chainring, and you will see the exquisite balance between stiffness and weight. Precise Synergy of All PartsAdopting CNC technology