Home / Honda / TRX250R / Engine / Stud kit for E2B, Puma and Sphinx cylinders Stud kit for E2B, Puma and Sphinx cylinders$25.95 Stud kit for E2B, Puma and Sphinx cylinders quantity Add to cart Categories: Engine, Honda, TRX250R Description Description Stud kit for E2B, Puma and Sphinx cylinders You may also like… ATC250REngine TRX/ATC250R Billet Case Kit Related products HondaIntake 1986 TRX250R Stainless Steel Intake For 1986 TRX250R only. HondaIntake 1987-89 TRX250R Stainless Steel Intake For 1987-89 TRX250R only. ExhaustHonda TRX250R Small Bore Exhaust 250C LED 250C pipe. For engine sizes 250-310. Best for dunes, MX, flat track, and play riding. Raw finish EngineHonda CR500 Main Bearing CR500 8 ball main bearing.