It is NOT in reference to the stock bore. Big Bore Over Size (in).
010 Bore: 3.508''/. 010 Stroke: 4.250'' Displacement: 1345cc Valve Reliefs/Dome: Valve pocket depths are measured from deck height. Dome Volume: -1.5cc Int. 178'' / Dia: 2.000'' Ext.178'' / Dia: 2.000'' Compression: 8.5:1 Compression Ratio / Flat Top Features: ArmorGlide skirt coated. Kit Includes: 2 forged pistons, 2 ring sets, 2 wrist pins and 2 pairs of wrist pin clips. Dedicated forgings used for superior strength to weight ratio utilizing aerospace alloy. Horizontal slot-pin oiling reduces friction and provides scuff resistance, along with a pressure seal groove for maximum ring seal. The skirt shape (barrel/cam) is designed for a specific running clearance, based on coefficient of thermal expansion of the piston alloy.
An optimally designed skirt shape provides stability which is important for proper ring seal and reduced friction. This item is in the category "eBay Motors\Parts & Accessories\Motorcycle Parts\Engines & Engine Parts\Pistons, Rings & Pistons Kits". The seller is "jawzys" and is located in this country: US. This item can be shipped worldwide.
Normal wear not covered