Cassette 12 Speed SunRace MZ903
Cassette 12 Speed SunRace MZ903 - 11T-51T : This product is available for backorder only. Will ship as soon as it is back in stock.
Shipping & Delivery*
Shipping & Delivery*
Standard Shipping
All parcels shipped with Australia Post with tracking. The delivery fee depends on the size and weight of your ordered items.Â
- $8.00 - Small (FREE over $150)
- $10.00 - Medium
- $18.00 - Large
Heavy, Oversized Delivery
Heavy, oversized items incur additional fees and are shipped using a tracked Courier Service.
- $30.00 - 3 to 5kg
- $50.00 - 5 to 8kg
- $100.00 - 8 to 15kg
This includes items like home trainers, trailers, car racks, child seats and more.
These rates are limited to VIC, SA, NSW, QLD, and TAS. Contact us for a quote to NT or WA.
International Shipping
We offer international shipping to New Zealand and USA on selected items. Excludes bikes, scooters and heavy/oversized goods.
When will my order be shipped?
- 0-2 business days - All items in stock at one location
- 2-5 business days - Items stocked at multiple locations
Returns
Returns
Get in touch with our orders team at orders@ivanhoecycles.com.au within 30 days of receiving your goodies if you'd like to organise a return, exchange or credit.
SunRace MZ903
The SunRace MZ903 is a high-performance 12-speed cassette engineered for riders who demand a wide gear range without compromising on durability or compatibility.
Ideal for mountain biking, gravel adventures, and aggressive trail riding, the MZ903 offers smooth, responsive shifting across a broad 11â51T spread, helping you tackle everything from steep climbs to fast descents with confidence.
Built to fit standard Shimano HG freehub bodies, this cassette offers a practical alternative to Micro Spline systems, making it a popular upgrade option for riders looking to convert their existing hubs to 12-speed drivetrains.
- Speeds: 12-speed
- Total Gear Range: 464% for excellent climbing capability and flat-terrain speed
- Freehub Compatibility: Standard Shimano HG (HyperGlide) 9/10/11-speed freehub bodies
- Drivetrain Compatibility: Compatible with Shimano 12-speed chains and derailleur systems
- Steel Sprockets (11Tâ39T): High-strength steel provides lasting wear resistance for high-mileage use
- Aluminium Sprockets (45T & 51T): Lightweight 7075-T6 aluminium used on the largest cogs to reduce weight without sacrificing strength
- Alloy Spider & Lockring: Keeps the overall construction lightweight and rigid for efficient power transfer
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Weight
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Hub CompatibilityHG Spline
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Compatible Bike Type
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Compatible ChainShimano CN-M8100, Shimano CN-M7100, Shimano CN-M6100
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Compatible Chain (link)
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Speeds (rear)12 Speed
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Model
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Sprocket Sizes
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DisciplineMountain, Gravel
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EAN
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SKU11T-51T: 4710944268164
