Pinion Esjot steel 11 teeth for Hercules Prima 1, 2, 3, 4, 5, 6, M MX SX, Hobby Rider 4 HR 2 with aluminum wheel, MF MP Optima P GT GX, Pronto, Presto, Supra D, GP, KTM Bora, Rixe, DKW Mofa Moped