Please use correct installation methods and follow your frame's torque specifications

The top of the line XX1 Eagle derailleur is the next evolution of SRAM's brilliant X-HORIZON derailleur range

then this is for you

The Cane Creek top / upper headset assemblies feature:

10-52t: ~373g

Hope Spiderless Retainer Chainring - Direct Mount - Shimano - 51-53mm Chainline - Round - 32T - 9-12 Speed - Orange - Alloy Out of Stock Please use correct installation methodsHope Spiderless Retainer Chainrings allow for the use of smaller chainrings by mounting directly to the Hope Crank interface. Made from a lightweight Aluminium, these are designed to hold on to the chain while saving weight over a normal spider and ring combination. Specs: Material: CNC machined 7075 T6 Aluminium Finish: Hard anodised Speed: 9, 10 and 11 Speed Tooth Profile: Narrow wide Intended Chainline: 51 53mm (Boost 148) Narrow wide tooth profile