Click to expand Tap to zoom Guide Sleeve, Crankcase Lapping Tool for 55-17 Big Twin (Excl. M8) by Eastern Save £-160.88 £160.88 | / SKU MCS512924 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart DescriptionGuide sleeve, crankcase lapping toolDetailsModels with, or models converted to, Timken style bearings55-17 B.T. (excl. M8)