Fasstek PRO Racing cylinder head YZF R125 - MT 125 V1-V2

The PRO cylinder head from Fasstek Racing is essential for Big Blocks ranging from 225 to 304cc. They fit Yamaha - Minarelli 125 4T LC engines like YZF R125 from 2008 to 2018, MT125 from 2014 to 2019, Fantic, Beta, Rieju, etc.!

The Fasstek cylinder head is a special version with 5-axis CNC machining in the intake and exhaust passages, as well as in the combustion chamber.
The intake valves are 27mm and the exhaust valves are 24mm. This cylinder head will fit Big Block cylinders with a diameter of 70 and 72mm.

The cylinder head is delivered with the following composition
- 2 inlet valves
- 2 exhaust valves
- 4 assembled valve guides

Technical advice from LAB Fast125:
A racing camshaft, springs, bearings, injector and throttle body (minimum diameter 38mm) are recommended if you want to run the engine properly.
As options the UMA Cam Stopper racing part (ref: 02h00340) and the Fasstek Racing reinforced rocker shafts are highly recommended to make your cylinder head more reliable.
As accessories we suggest the Big Block intake pipe, the titanium cup kit and a Fasstek cylinder head cover.
It is important to check that your muffler has an internal diameter of 34mm in order to fit this cylinder head.

Please look at the vehicle chart below to see what fitment is possible on your bike.
(Exclusive Racing parts in small series, therefore rare and do not hesitate to contact us!)

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