CSK161 H/Duty Clutch Springs for KTM RC8 (1190cc, 6 spring clutch models) 2008-2010. CSK161 H/Duty Clutch Springs for KTM RC8R (1190cc, 6 spring clutch models ) 2010-2012. EBC clutch spring kits are 10-15% stiffer than standard and are sold in engine sets.
