2 Pcs 420 Chain Master Link 50cc 90cc Pit Bike Connector Product Name: # 420 Chain Master Link Fit for: 50cc,70cc, 90cc, 110cc, 125cc ATVs & Dirt / Pit Bikes with # 420 Chain Size(Approx): 2.35 x 1.63 x 1.08cm / 0.9 x 0.6 x 0.4"(L*W*H); Pin Diameter(Approx): 0.39cm / 0.15" Material: Metal Net Weight: 16g