Engines and Components› Pistons and Piston Rings

NMW Racing

Performance Bore Kit with Piston Kit

$342.23

SKU: KTM DUKE/RC 390 GEN-3 PERFORMANCE BIG BORE KIT BY NMW

In Stock
In Stock
Ships by Jul 29
Free Shipping
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Advanced — 4+ hours

Description

The NMW Racing Performance Bore Kit is designed to elevate the performance of your KTM Duke or RC 390. This kit includes a bored cylinder to expand engine displacement, enhancing power and acceleration, along with a performance piston kit built for durability and high performance.

It is custom-engineered for a seamless integration and optimized fit on KTM Duke and RC 390 models.

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

BrandNMW Racing
Part NumberKTM DUKE/RC 390 GEN-3 PERFORMANCE BIG BORE KIT BY NMW
CategoryEngines and Components

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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