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Engines and Components› Pistons and Piston Rings

Athena

Athena 98-00 Aprilia 51 LC 50 47.6mm Bore 70cc 12mm Pin Big Bore Cylinder Kit w/Modular Head

$461.95 $374.30 Save $87.65

SKU: A0EF P400485100044

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In Stock
Ships by Jun 20
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

Upgrade your 50cc liquid-cooled scooter with the Athena P400485100044 Big Bore Cylinder Kit. This kit features a modular head, 70cc displacement, a 47.6mm bore, and a 12mm pin, designed to enhance performance. Compatible with various Aprilia, Beta, Benelli, and Malaguti models, though further research indicates specific compatibility with 50cc liquid-cooled 2-stroke Honda and Kymco scooter engines.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandAthena
Part NumberA0EF P400485100044

Videos

Dyno tune 2.0 on the bw’s sport, equipped with a 70cc Athena Basic and a Yasuni R pipe.

Dyno tune 2.0 on the bw’s sport, equipped with a 70cc Athena Basic and a Yasuni R pipe.

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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