Where durability meets precision—Krutials delivers uncompromising performance for every cable-driven ride.
The Krutials 4mm Outer Casing Wire (Small) is purpose-built for high-performance braking systems across MTB, road, hybrid, and city bikes. Engineered with durability and control in mind, this outer casing wire strikes the ideal balance between strength, flexibility, and responsiveness—delivering consistent braking feel under the toughest riding conditions.
Sold per meter with a minimum order of 150 meters, this casing is tailored for workshops, OEM builders, and performance bike shops that demand bulk supply without compromising on quality. Whether you're equipping a full fleet, handling custom builds, or servicing high-volume repairs, this long-length casing is your workshop’s go-to for dependable results.
Constructed with a 4mm reinforced structure, the Krutials casing features a high-compression resistant steel spiral core, surrounded by a flexible polymer outer layer that resists weather, friction, and housing collapse. This design ensures that every squeeze of the brake lever translates into crisp, controlled response at the caliper—without delay, without fade.
Its compact diameter makes it compatible with all standard 4mm brake housing requirements, supporting both Shimano and SRAM mechanical systems. The casing is easy to cut and shape, reducing installation time and simplifying custom routing on internally cabled or externally guided frames.
Designed for small casing format, this version enhances handling in tight routing zones—like around internal tube guides, integrated handlebars, or compact frame geometries. It helps reduce clutter, maintain flow, and achieve clean aesthetics even in complicated configurations. Despite its small profile, the casing remains structurally sound and resistant to compression, even under high load.
Black-finished for universal compatibility and visual uniformity, the Krutials 4mm Outer Casing doesn’t just meet the standard—it sets it. It’s the casing of choice for builders who refuse to compromise on the details that define a great ride.
