The Shimano CS-LG300 LinkGlide 10-speed cassette represents a major breakthrough for electric bikes and drivetrains subjected to high chain tension. Designed by Shimano within the CUES U6000 range, this cassette harnesses the revolutionary LinkGlide technology to deliver up to three times greater durability than traditional HyperGlide+ systems, while ensuring smooth pedaling and exceptionally smooth bidirectional shifting.

Technical Summary

The CS-LG300 is available in two gear ranges to suit different terrain profiles: the 11-39 tooth version (737 g, reference ECSLG30010139) offers a balanced compromise for MTB and trekking, while the 11-48 tooth version (936 g, reference ECSLG30010148) provides an extended range to tackle steep climbs on e-bikes. Both install on a standard Shimano HG freehub body and work exclusively with LinkGlide derailleurs and shifters, ensuring complete system optimization.

LinkGlide Technology and Extreme Longevity

• Reinforced sprocket base: The teeth have been redesigned with a significantly thicker base and a specific chamfer, which radically improve wear resistance in high-torque applications, typical of e-bikes and intensive use.
• Optimized shift ramp design: The shift assist features provide a smoother transition between sprockets, avoiding the jolts that affect shifting and pedaling.
• Increased durability: LinkGlide technology delivers three times the longevity of HyperGlide+ under high chain tension conditions, reducing component replacement frequency and extending drivetrain life.
• Compatible chains: Works with LinkGlide chains (CN-LG500) and HG 11-speed chains (CN-HG601, HG701, HG901) for maximum reliability.

Performance and Shifting

• Smooth bidirectional shifting: The CS-LG300 offers smooth shifts in both directions (upshifts and downshifts), with reduced pedal shock, for optimal riding comfort.
• Rider-adapted gearing: The calibrated gear steps ensure an ideal pedaling rhythm and precise transitions to maximize efficiency on all terrains.
• Exclusive compatibility: Absolutely requires a LinkGlide shifting system (derailleur and shifter). CUES components cannot be combined with other Shimano groups.

Materials and Construction

The sprockets and lock ring are made of steel, a material offering optimal mechanical strength and stress absorption for e-bike applications. The matte black finish provides a modern aesthetic that integrates perfectly with contemporary electric drivetrains.

Available Variants

• 11-39 tooth variant: Gearing 11-13-15-17-20-23-26-30-34-39T — Weight 737 g — EAN 4550170171995 / Ref. ECSLG30010139 — Ideal for MTB, trekking and e-bikes with moderate terrain.
• 11-48 tooth variant: Gearing 11-13-15-17-20-23-28-34-41-48T — Weight 936 g — EAN 4550170171803 / Ref. ECSLG30010148 — Designed for e-bikes and applications requiring a wide gear range to tackle steep climbs and varied terrain.

Specifications and Compatibility

• Recommended use: MTB, Trekking, E-Bike — particularly suited to electric bikes and versatile bikes subjected to high chain tension.
• Installation: Shimano HG freehub body (compatible 8/9/10 speed, 11-speed MTB).
• Group: Shimano CUES U6000.
• Country of origin: Japan (according to eBay source).