FST racing cylinder head R125 - MT 125 - XSR 125 VVA E5
The FST Racing 25/2wmm "Hpower" cylinder head is essential for engines prepared in 180cc and 200cc. Fits Minarelli 125 4T LC VVA Euro 5 engines with fuel injection for Yamaha R125 2019-, MT 125 2020-, XSR 125 2021-, Fantic Caballero 125 2021-, Fantic XEF and XMF 125 2021-, Beta RR 4T LC 125 2021-.
This racing cylinder head has a 25mm valve diameter for the intake as opposed to the original 19.5 and 22mm for the exhaust valves which are only 17mm. Also all the intake, exhaust and combustion chamber ducts are CNC machined on 5 axes!
This cylinder head is delivered unassembled with the following components
- 2 valves 22mm
- 2 valves 25mm
- 3 camshaft rockers (1 echp, 1 adm, 1 var)
- 4 valve tappet stop screws and nuts
A Cardinals V63 racing camshaft and a 12 hole injector is recommended, if you want to run the engine properly also opt for a Powertronic ECU. The table below will allow you to see the mounting possibilities on your vehicle!
This product is no longer available.
Terms and conditions*
Pay in 
with a Paypal account
Satisfied or your money back for 30 days
DHL Express delivery ⛟ | Product return ♽
| Manufacturer | Model | Start Year | End Year |
|---|