TB Parts 58mm/147cc CRF110 cylinder. The all aluminum ceramic coated cylinder is lighter than a steel sleeved aluminum cylinder, reduces friction (increasing power), improves sealing, and provides better heat transfer (runs and cools down quicker).

IMPORTANT NOTE:
Installation requires engine disassembly and case boring. Therefore, we highly recommend a professional technician install this kit and the cases bored by a reputable machine shop. Cylinder skirt is 60.48 x 27mm for case bore