Motorcycle AP115 AX115 52mm Cylinder Block Kit For AP 115 2T 11210-23450-0F0 Engine Parts This cylinder block kit is designed for compatibility with AP115 and AX115 models featuring a 52mm bore size.It includes all necessary components to replace or upgrade the engine's cylinder assembly.The kit fits engines with model number 11210-23450-0F0 and is intended for two-stroke applications.machined parts proper alignment and function within the engine system.Suitable for use in motorcycle engine rebuilds or performance modifications.