Product Description Stamped Steel Punched splines Individually balanced Ferrite or Neodymium magnets meet or exceed O.E. specifications Replaces OEM # 29957-81 Standard Motorcycle Products Alternator Rotor at J&P Cycles Browse all J&P Cycles deals $79.99 In Stock at J&P Cycles Price checked 6 days ago Buy Now at J&P Cycles Secure checkout Easy returns or compare prices Amazon eBay Product Details Brand Standard Motorcycle Products Size OS Condition New MPN MC-RTR1 Standard Motorcycle Products