UMA Racing Cylinder Head kit - Various Yamaha (20in/23ex)

USD $495.99



Shipping weight: 3.40 kg

 3 People have bought this item!

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Once you hold the uma superhead in your hands, you can see and feel that someone put a lot of thought and effort into engineering this cylinder head with the intake inlet ported to a unique "8" shape for optimum airflow. Built to only the highest standards, you will not need to think about porting or polishing this head further as all the work has already been done for you. Fits various Yamaha models including the Fz150i/Vixion/R15/R125 motorcycles and Jupiter MX/Crypton X/Spark/Exciter/Sniper 135 underbones.

Ideally made to go with the 62mm big bore cylinder kit from UMA with domed forged piston, you can also mate it with kits from other brands.

Included with this item are the valves, titanium retainers, springs, rocker arms already assembled. Also gaskets and a matching camshaft. Basically everything you need for assembly, good to go.



  • 23/IN 20/EX valves
  • Valve retainers, springs, rocker arms and camshaft
  • Large 30mm exhaust port
  • Intake snorkel for Jupiter MX/Crypton X/Spark/Exciter T135 underbones.
  • Head gasket
  • Mounting hardware and hose clips
  • *Special Intake snorkel sold separately for R15/Vixion Fz150i*





Yamaha LC135, Jupiter MX, MX King, Crypton X, Spark, Exciter, Sniper 135, Fz150i, Vixion, R15, R125, WR125, MT-125, MT-150, Rieju 125

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