High compression design increases engine output for demanding riding conditions
Custom fit for Beta Evo S3 ST428A ensures compatibility and easy installation
Durable metal construction provides long-lasting performance
Aftermarket part offers a cost-effective alternative to OEM components
Summarized by Shop
Head Cylinder: Insert 250-(High Comp)
Specific compression inserts design offers the possibility to adapt engine setting to YOUR CHOICE
Bike: Beta Evo
ST-428-A Requires S3 Head Cover https://trialssuperstore.com/collections/engine-1/products/beta-evo-s3-head-cover