The Athena Big Bore kit is the missing source for increasing your motorcycles raw power.
- The included cylinder on the Athena Big Bore kit is constructed out of aluminum with a galvanic coating to increase durability.
- The water jets have been widened for a higher flow rate, keeping the cylinder cool.
- Athena built a reliable cast piston that has been molybdenum-coated for high performance use and extended wear life.
- The Athena Big Bore kit includes a specially designed gasket kit to accommodate the big bore features.
- Another great feature of the Athena Big Bore kit is that it bolts on with no machining needed, and includes easy-to-follow step-by-step installation instructions.
- The Athena Big Bore Kit includes: cylinder, cast piston, ring(s), pin, clips, and a top end big bore gasket kit.
- Note: Image is for display purposes ONLY and may not represent actual product.
- 130cc big bore cylinder kit.
- 2.50 mm oversize to 57.00 mm bore.
- Compression: 11.3:1.
Note: All Athena products, which are manufactured with higher displacement and power than those permitted by law of the country where the end user lives, are intended solely for competition-sports usage.