S3 Low Compression Cylinder Head Kit - GasGas 250 up to 2013

New Low compression for smoother, softer, lower power delivery. The kit includes cylinder head + insert + o-rings ready to assemble and enjoy new sensations!

*All STKA/STKB kits include: cylinder head, insert and O-rings.

S3 heads are made by forging process and using best alloys available, shiny finish in anodised colours.
Specific compression inserts design offers the possibility to adapt engine setting to YOUR CHOICE
S3 Cylinder heads can hold more water flow and have stronger walls, helping with the cooling rate, this improve low and high revs power.

Fits the GasGas TXT Pro bikes from 2002 to 2013

Will also fit the 2005 to 2022 Sherco 250cc trials bikes if you don't mind the Red colour (no other colour current available)