H-Series cassettes are designed for maximum durability. This 7 speed 12-40T version gives a basic bike a much lower climbing gear while keeping the simple, tough all-steel build Microshift is known for.

Highlights

• 12-40T range for 7 speed drivetrains
• All-steel construction
• Multi-stage heat treatment
• Continuously forged cogs for strength and shifting accuracy
• Two-layer black ED finish
• Standard HG freehub fit

Wide range for 7 speed

With a 40T big cog, this cassette makes steep hills far more manageable on commuters and entry-level mountain bikes. All-steel cogs and multi-stage heat treatment mean it will stand up to whatever you can throw at it.

Compatibility & fit

Part of Microshift's Estes group and compatible with standard HG freehub bodies. Cog sequence: 12-15-18-22-28-34-40. A 40T cog needs a rear derailleur rated for it, such as Microshift's Estes RD-M220L long cage (max 34-40T, 2x) or RD-M220M medium cage (max 40-45T, 1x). Our workshop can fit the cassette and check your derailleur's capacity.