Athena has been constantly investing in cylinder aftermarket replacement parts for more than ten years, to improve their production and performance. All the cylinders are entirely engineered in Italy by Athena’s R&D Department which has a strong internal know-how and cutting-edge tools to design and test each piece. They are coated with motor-nicksil, a nickel-silicon coating developed by Athena to obtain smoothness and optimal wear resistance.
Athena’s cylinder kits and its components are recognized worldwide for their performance, durability and reliability.
Athena’s Big Bore Cylinder Kits guarantees an increase in performance that can be observed along the power curve, keeping the reliability at the same level of the original components.
The kit includes the high-quality aluminum cylinder with increased bore and galvanic coating, barrel designed with 5 exhaust ports, cylinder head with interchangeable central dome, flat-top cast piston with two rings, special Ergal valve with nickel treatment, and all the necessary gaskets.
All the components of the kit have been developed to withstand the highest temperatures, pressures and stresses and have been validated by Athena technicians with severe bench and road tests.
Warnings:
California Proposition 65
WARNING: Cancer and Reproductive Harm: www.P65Warnings.ca.gov
These items are designed exclusively for closed course competition use ONLY.
Use on public lands or highways in the state of California is illegal.
Image is for refference only!
Yamaha YZ85 - 105cc Big Bore Kit - Athena
Need Help Installing Your Kit? Or Want to Tackle It Yourself with Expert Advice?
Whether you're looking for professional installation or prefer to do it yourself with guidance, we’ve got you covered!
- Need Installation? Let us handle the work for you! We specialize in complete top-end rebuilds, ensuring your engine performs at its best. For more details, check out our Top-End Rebuild service here.
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DIY Enthusiast? If you're ready to take on the rebuild yourself but need expert advice, contact us! We’re here to provide the tips and support you need to get the job done right.