The Shimano Acera CS-HG41 7-speed 11-28 cassette embodies the perfect balance between proven reliability, accessible performance, and exceptional durability. Designed for MTB, touring, and urban riders demanding a robust transmission without compromise, this cassette benefits from Shimano's legendary Hyperglide technology, guaranteeing smooth and instantaneous gear changes, even under load. With its perfectly progressive 11-28 tooth gearing, it offers remarkable versatility to tackle all terrains.

Technical highlights

• Authentic Hyperglide technology: Computer-designed tooth profile with sculpted shift ramps ensuring sharp, precise, and silent gear changes, compatible with SIS (Shimano Index System) systems.
• High-strength nickel-plated steel construction: Hardened material offering superior longevity and optimal corrosion resistance, for intensive use in all weather conditions.
• Ingeniously perforated sprockets: Strategic cutouts reducing weight without sacrificing structural rigidity or transmission performance, for appreciable mass savings.
• Phosphate-treated lockring: Reinforced anti-corrosion treatment for increased longevity of the mounting system, resistant to salt and moisture attack.
• Extended compatibility: Fits perfectly on all Shimano/SRAM 7-speed HyperGlide standard freehub bodies, and works with HG and IG 3/32" chains.

Gearing and progressive development

The 11-13-15-18-21-24-28 tooth combination has been carefully designed to offer regular gaps between sprockets, facilitating maintenance of a smooth and efficient pedaling cadence. The small sprockets (11-13-15) ensure high speeds on flats and descents, while the intermediate ratios (18-21-24) guarantee comfortable pedaling on false flats, and the large 28-tooth sprocket provides sufficient range to climb sustained hills with ease. This balanced architecture is suitable for cycle touring as well as recreational MTB rides and hilly urban commutes.

Compatibility and standards

This CS-HG41 cassette installs on any hub equipped with a Shimano/SRAM 7-speed splined freehub body, the dominant standard for entry-to-mid level transmissions. It accepts 3/32" width chains, compatible with HyperGlide (HG) and InterGlide (IG), thus offering great flexibility of choice. Installation is quick thanks to the modern cassette system: the sprockets slide onto the body splines and the lockring simply threads on with a standard cassette lockring tool.

Shimano design and manufacturing

Manufactured in Japan, this cassette benefits from Shimano's legendary expertise in drivetrain groups. The nickel-plated surface treatment guarantees not only a polished bright silver aesthetic, but above all increased resistance to oxidation and wear, considerably extending the component's lifespan. Precise machining tolerances ensure quiet operation and perfect synchronization with Shimano 7-speed derailleurs of all ranges (Tourney, Altus, Acera).

Performance and recommended use

Ideal for recreational MTB, cycle touring, hybrid bikes, and urban configurations, the CS-HG41 excels in versatile uses requiring reliability and minimal maintenance. Its contained weight (approximately 228 to 336 grams depending on configurations) makes it light enough not to penalize climbs, while maintaining the robustness necessary for repeated demands of daily pedaling. Hyperglide technology ensures smooth gear changes even while pedaling, reducing premature wear of the chain and chainrings.