Motorcycle 47mm XR70 DAX70 CRF70 CUB70 Cylinder Block Kit For C70 CT7 DAX XR CRF 70cc 4T 12101-GB0-910 This cylinder block kit is designed for use with 70cc four-stroke engines.It features a 47mm bore diameter and is compatible with models using the 12101-GB0-910.The kit includes a cylinder, piston, piston rings, and wrist pin.It is intended for replacement or performance on small displacement motorcycles such as those in the XR, DAX, CRF, and series.The components are built to standard specifications for fitment and function in 70cc engine platforms.