SLEEVE 1997 YZ250 68.00 3344F, PROX 15.2397, 3344FA, BORE 68/68.50

Advanced Sleeve was created with you, the professional engine builder, in mind. We at Advanced Sleeve have made a company foundation on your ideas and suggestions. Advanced Sleeve has spent countless hours talking with many of today's and tomorrow's leaders in the Motorsport industry to help produce one of the most technologically advanced sleeve products.