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Cylinder Works
Cylinder Works 07-09 Suzuki RM-Z 250 250cc +3mm Big Bore Cylinder Kit 270cc 13.4:1 Comp. 80mm
SKU: C0BU 41003-K01
Moderate — 2–4 hours
Description
Part #: 41003-K01
OEM in apperance, yet performance driven in design. The Cylinder Works Big Bore Cylinder Kits contain a hand matched big bore Vertex piston and top end gasket kit wtih o-rings in an all-in-one kit, providing cost savings over purchasing OEM components separately.
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
| Brand | Cylinder Works |
| Part Number | C0BU 41003-K01 |
Videos
Cylinder Works Big Bore Cylinder Kit
Racer X Films: 2015 Cylinder Works Suzuki RM-Z270
Racer X Films: 2018 Suzuki RM-Z250 Cylinder Works Project Build
Cylinder Works 269CC Big Bore versus Stock OEM Cylinder
Racer X Tested: 2013 RMZ250F Big Bore
Suzuki RMZ270 Project Build - Dirt Bike Magazine
Cylinder Works 269CC Big Bore Install Part 1
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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