24mm/ 20mm Spanner. Such as TaoTao, Buyang, Coolsport, NST, BMX, Kazuma, Sunl, ROKETA, AIM-EX etc. Honda 14mm clutch locknut on CRF50, XR200 1980-1984, XR200R 1981-1994, XR250L 1991-1994 & XR250R 1986-1994, CL,CT,SL& XL models.