T2R - S05 Mod - Twin 225 XT Sprung Race Kit performs aggressive launches and smoother shifting in high powered AWDs by combining twice the ceramic friction surfaces with an ultra - durable Mono - Drive sprung hub assembly in a completely modular design. Each diaphragm spring endures an exclusive four - stage heat treating process providing a consistent light pedal feel. Puck - style Friction Plates with high quality ceramic friction materials deliver high friction coefficient, superior heat capacity, and long clutch life. These Friction Plates uniformly transfer torque to a Mono - Drive sprung hub assembly which extends input shaft life and reduces driveline shock from torsional vibration. This kit includes a CNC - machined and dynamically balanced flywheel, pressure plate cover, diaphragm spring, face, puck - style ceramic friction plates, sprung Mono - Drive hub assembly, floater, patented Monoloc Collar, release bearing, alignment tool and pilot bearing (if needed). Mod - Twin clutches are fully rebuildable and most components can be ordered separately.