Sunrace MZ8 12x MTB Cassette in Black

Engineered for advanced riders who demand smooth transitions and dependable performance, this 12-speed wide-ratio cassette delivers the range and reliability needed for everything from steep climbs to fast descents. Whether you're upgrading your drivetrain or building a versatile setup, it’s a perfect choice for gravel, MTB, and e-bikes.

Key Features:

• Wide-range gearing options for versatile riding
• Fluid Drive Plus for seamless gear transitions
• Compatible with standard Shimano HG 12x freehub bodies
• Lightweight alloy spider and lockring

Technical Specifications:

• Material: Steel sprockets, steel spiders, alloy lockring
• Speeds: 12-speed
• Freehub compatibility: Shimano HG 12x
• Weight: 648g

All UK Mainland Bike Deliveries Over £999 - Free Bike orders are sent via TNT/FedEx with estimated delivery within 1 working day after quoted dispatch time (For Scottish Highlands, Northern Ireland, Isle of Man and the Channel Islands deliveries please allow an additional 1-4 working days).Bike orders under £999 and eBikes will incur a £25 delivery fee.

Free Delivery On Orders Over £199.99 - When you spend more than £199.99 at 99 Bikes deliveries to a UK mainland address will be free (excludes bikes & large items).Certain regions and territories of the UK will incur additional charges, details of which can be found on our delivery page.

Click & Collect Orders -Please be aware Click & Collect orders may take some time to fulfil. We advise not to travel to your chosen store until you have been notified that your order is ready for collection.

At 99 Bikes our priority is to ensure that you are highly satisfied with your purchase. In the unlikely event that you aren't, we offer a 30 day online return policy* in which you can receive a full refund. Any item including bikes (with the exception of food) can be returned to us for any reason provided it is received by us in an unused and resalable condition in or with its original packaging which must be undamaged.

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