KTM ‘Group’ 250 TPI & Carby 2017-23 Models – Cylinder Head Insert

Description

Part Number: P.I.KT250.17on.XXX

*** TSP Heads & Inserts now always include Cylinder head O-rings & Washers free of charge! ***

This CNC machined TSP head insert suits KTM ‘Group’ 250 TPI & Carby 2017-23 models and fits into the stock cylinder head outer part. It features an improved combustion chamber design that gives more performance from bottom to top as well as reduced risk of detonation. Although it signs off slightly earlier in the overrev it will be easier on hill climbs, easier to lift the front and faster corner to corner due to the increased torque up to 12,000rpm.

LOW COMPRESSION: This new Low comp design is slightly lower than the previous Med comp 250 design. It is best used for applications where the engine is revving very hard OR where there isn’t much need for extra bottom end power. It is higher than the stock EXC/TE enduro heads. It is suited to the enduro models only.

MEDIUM COMPRESSION: The new Med comp insert is slightly higher than the previous Med comp insert. It is the best all-round design for the majority of enduro riders from 0-1000m. It can also be used on the SX/TC models where they are revving very hard and require smooth mid and lots of overrev.

HIGH COMPRESSION: The new High comp design is slightly higher than the previous high comp design. It is best suited to SX/TC models as it is only slightly higher than the stock SX/TC heads. It can also be used on the endurop models at altitude above 1000m.

VERY HIGH COMPRESSION: The new Very High comp insert is designed for use at high elevation only. It can be used on either SX/TC or EXC/TE models above 1500m.

Make/Model Compatibility:

KTM250 Group* 2017-23 (TPI & Carby) Low/Medium/High/Very High Compression