dirt bike part Material: 1045 Process: stamping Model: 428-52~58tooth, 528-42~48tooth Treatment:heating treated, zinc plated dirt bike partMaterial: 1045Process: stampingModel: 428-52~58tooth, 528-42~48toothTreatment:heating treated, zinc platedWe supply various parts for YAMAHA, HONDA, SUZUKI, KAWASAKI, KTM, etc