[Premium quality]?? 420 106-Link Heavy Duty Drive Chain made of highest grade of special steel alloys,High strength and good corrosion resistance , strong and durable. [Specifications]: Roller diameter: 7.77 mm; Pin length: 15.05 mm; Plate thickness inner: 1.6 mm; Plate thickness outer: 1.6 mm; Weight per 100 links: 1.63 lbs.; avg. tensile strength: 4189 lb.-f; No. of Pin Rivet Presses: 2; Master Link Type: Clip. [Powerful]: Links can be removed to fit virtually any application, like 50cc 70cc 90cc 110cc 125cc ATVs and dirt bikes, Go Kart, Mini Bike, Scooter, Pit Bike, Quad, etc. [Package including]?? 1pcs 420106-Link heavy duty drive chain ??1pcs chain breaker and 4pcs 420 Chain Connector Link. Please check the description to confirm the compatibility before purchase. Thank you! if you have any problems or concerns, please kindly send us mail any time, we are always here to provide you 100% satisfied after-sale service.