TRP state that the TR12 rear derailleur works best with the Sram PG-1230 NX Eagle 11-50 cassette for HG freehubs and that it also works very well with Sram XG-1275 GX Eagle

With 4-piece double-row sealed cartridge bearings and an aluminium axle

Diameter: 32mm

this is a great option

Leatt MTB Gravity 6.0 Carbon Helmet - S - Stealth Black/Grey Ignore Wholesale Tier 1 Brand Rule TRP state that the TR12The Gravity 6. 0 helmet delivers downhill certified protection in an ultralight carbon shellengineered for DH racers and bike park riders who demand serious performance without serious weight. Built with a thermoplast carbon shell, the Gravity 6. 0 offers enhanced flexibility and reduced brittleness compared to traditional carbon, resulting in a lighter, more durable helmet. Dual density EPS + EPO impact foam works alongside 360 Turbine Technology to