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The Shimano Outer Casing SIS SP41 is a high-quality shift cable housing designed to deliver smooth, precise, and reliable gear changes on a wide range of bicycles. Engineered specifically for Shimano’s SIS indexed shifting systems, this outer casing reduces friction along the full length of the cable run, helping your shifters feel lighter and more responsive. Whether you ride on the road, trail, or commute daily, consistent shifting performance is essential, and SP41 housing is a trusted choice used by mechanics and riders around the world.
This housing is pre-lubricated from the factory with a special silicone-based grease, which helps minimize cable drag and maintain crisp shifting over time. Its robust construction resists compression, so your gear indexing stays accurate even under load or in demanding conditions. The durable outer layer is designed to stand up to dirt, moisture, and everyday wear, making it suitable for year-round riding. Ideal for replacing worn or contaminated housing, Shimano Outer Casing SIS SP41 is a smart upgrade that restores shifting performance and extends the life of your drivetrain components.
