KTM125SX 2023-2025 Husqvarna TC125 GASGAS 2024-2025 Phathead cylinder head kit

KTM125SX 2023-2025  Phathead cylinder head kit TC125 Husqvarna GASGAS

We have teamed up with HP Race Development to fine tune the GET ecu platform.  Our chamber works well with the stock ECU and even better with the custom mapping of the GET unit.  

Chamber selection:

Stock (95+ octane)

High compression (100+ octane)                                                                                         

Phathead Kits include a head shell with one combustion chamber, two sets of o-rings, cylinder head nuts, copper washers, some stickers for your bike and tool box and installation instructions..

Phathead cylinder heads are made of 6061 T6 billet aluminum.  The material is stronger and transfers heat better than cast aluminum.  The two piece design allows an increase in coolant flow as well as surface area which improves cooling for better consistency and performance.   

One of the main benefits of the product is the replaceable combustion chamber which are available in a range of compression options.

Suggestions : Swap chambers to adjust performance for a variety of riding conditions and track types or keep a spare in case of engine failure.