Brand New Crank Shaft compatible with TaoTao: BoulderB1, ATA 110 D/D1, ATA 125 D, ATA 125 F1, DB 10, GK 110, ATK 125 A, Jeep Auto, ATA 110 B/B1 , Cheetah, ATA 135 DU, and NEW TFORCE. It might also fit for other Chinese 110cc Dirt Bikes, 110cc Go Karts, 110cc ATVs, and 125cc ATVs. Tao Tao ATA 110 B/B1 Tao Tao ATA 110 D/D1 Tao Tao ATA 125 D Tao Tao ATA 135 DU Tao Tao ATA 125 F1 Tao Tao Cheetah Tao Tao DB 10 Tao Tao ATK 125 A Tao Tao BoulderB1 Tao Tao GK 110 Tao Tao Jeep Auto Tao Tao Tao DB 20 It has a 13mm gudgeon pin hole and only fits ‘Lay Flat’ engines Comes complete with 2 x 6304 bearings and a 14T timing sprocket wheel. Total length of con rod is approx. 124mm Fast ship from our USA warehouse