hinson racing drukplaat yzf250 19 h641 pp 1901Used by all Major Factory Teams and Riders, Improves Clutch Performance and Life, Improves Heat Dissipation, Precision Machined From Billet T 6 Aircraft Quality Aluminum to Aerospace Tolerans, and Hardcoated for Five Times The Wea's Sistance Assembly to Spin More True Creating Less Heat When Clutch is Disengaged, When Used With Hinson Clutch Components Clutch Basket and Inner Hub Helps Eliminate Clutch Chatter, Note: ** Requires 89 Update Hin