2004-2009 Suzuki LT-Z250 Service Manual, Page 79Get this manual
CLUTCH SHOES Inspect the clutch shoes for chips, cracks, uneven wear, and heat discolorationAlso, check the depth of the grooves on the clutch shoesIf there is no groove at any part of the shoes, replace the shoes as setNOTE: The clutch shoes must always be changed as set