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This OEM replacement engine cylinder barrel is manufactured by Rotax for BMW’s classic single-cylinder dual-sport motorcycles. Featuring a high-durability, low-friction coated internal bore, it ensures optimal compression and heat dissipation within the combustion chamber. It functions as the direct housing for the engine's 100mm piston and features an aluminum outer body with precise coolant passages for liquid cooling.Compatible ModelsThis cylinder barrel features the unique Rotax 223900 100/4R casting footprint and fits the 652cc Rotax Type 654 single-cylinder carburetor engines used in first-generation BMW bikes:BMW F650 Funduro: 1993 – 2000BMW F650ST (Strada): 1996 – 2000(Note: This component does not directly fit the later, fuel-injected F650GS or GS Dakar models introduced in 2000, which utilize the updated Rotax engine design with different oil line arrangements and casting dimensions.)
Please verify compatibility with your specific motorcycle model before purchasing.
Cleaning Status
partially_cleaned
Cleaning Notes
Used stain remover
Worldwide shipping available
Express shipping available at checkout
Estimated delivery: 2-5 business days
All items are carefully packaged for safe transit
Items can be insured — contact us for more information
30-day return policy on most items
Items must be in original condition and packaging
Contact support for return authorization
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Yes, all parts with OEM numbers are genuine manufacturer parts. Check the specifications tab for the OEM number.
We offer a 30-day return policy. Items must be in original condition. See the Shipping tab for complete details.
Yes, we ship to most countries worldwide. Shipping costs and delivery times vary by location.
Parts are sold separately. We recommend professional installation for safety and warranty purposes.
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