Athena 80cc Big Bore Cylinder Kit - KTM 65 SX / XC (2001-2008)
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Take your KTM 65 SX or 65 XC to the next level of race performance with the Athena 80cc Big Bore Race Cylinder Kit (P400270100002). Designed for serious mini racers, this kit boosts power, torque, and throttle response across the entire RPM range while maintaining reliable cooling and long-term durability.
✓ Fits:
- 2001-2008 KTM 65 SX
- 2002-2008 KTM 65 XC
- (Converts stock 65cc motor to approximately 80cc displacement. Compatible with OEM crankcase and bottom-end components.)
✓ Features:
- Increases displacement from 65cc to approximately 80cc
- Race-spec power valve and cylinder head system (non-OEM compatible)
- Nickel-carbide coated bore for maximum reliability and heat transfer
- Includes piston, gaskets, seals, and precision hardware
- Designed for competition and high-performance builds
✓ What's Included:
- Athena 80cc Big Bore Cylinder Kit - KTM 65 SX / XC
Ships fast from DuneGoonShop!
📦 Shipping Information
In-stock items ship next business day. ModQuad parts dispatch Monday through Thursday.
Made-to-order and custom powder coat items show their lead time at the top of this page, right next to the truck icon. These are built fresh for you, so timing varies by brand and current backlog.
Need something by a specific date? Call us at 541-668-7503 before ordering and we will check stock and ETA on that exact part. We can often point you to an in-stock alternative from another distributor.
Questions? Contact us, we respond within 24 hours.
