What Is It?
The Giant Freebody Road Disc MY21 Cartridge is a genuine Giant OEM replacement freehub body designed for selected 2021-model Giant road disc wheelsets equipped with cartridge-bearing rear hubs. It restores smooth freewheeling, reliable pawl engagement, and efficient power transfer when replacing a worn or damaged freehub.
This freehub uses the Shimano HyperGlide (HG) cassette interface and is intended for specific Giant road disc hubs from the MY21 (Model Year 2021) range. It is not interchangeable with Giant QR, loose-ball, Boost MTB, or XD/XDR freehub bodies.
Key Benefits
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Genuine Giant OEM Replacement – Designed specifically for compatible MY21 Giant road disc hubs.
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Cartridge Bearing Design – Smooth operation with low maintenance compared to loose-ball systems.
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Shimano HG Compatibility – Accepts Shimano HG-compatible road cassettes.
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Reliable Pawl Engagement – Restores positive drivetrain engagement and efficient power transfer.
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Direct-Fit Replacement – Installs as a replacement for the original MY21 freehub body.
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Durable Construction – Built to withstand regular road, endurance, and gravel riding.
Specifications
| Specification |
Details |
| Product |
Giant Freebody Cartridge Road Disc MY21 |
| Part Number |
152A-11SP12-04 |
| Type |
Replacement Freehub Body |
| Bearing Type |
Cartridge Bearing |
| Cassette Interface |
Shimano HyperGlide (HG) |
| Application |
Giant Road Disc Rear Hubs (MY21) |
| Replacement Type |
Genuine Giant OEM Part |
Compatible Components
The Giant Freebody Road Disc MY21 Cartridge is compatible with selected 2021 Giant road disc wheelsets fitted with the corresponding cartridge-bearing rear hub, including certain models from:
- Giant PR Series Disc wheels
- Giant P-A Road Disc hubs
- Selected Giant road and endurance bikes using MY21 cartridge-bearing hubs
Typical compatible bicycles may include selected model years of:
- Giant Defy
- Giant TCR Disc
- Giant Propel Disc
- Giant Contend AR
Compatibility depends on the hub model, wheel specification, and model year, rather than the bicycle model alone. Always verify the hub part number before purchasing.
Who Is This Best Suited For?
The Giant Freebody Road Disc MY21 Cartridge is ideal for:
- Road cyclists
- Endurance riders
- Gravel riders using compatible Giant wheelsets
- Home mechanics
- Bicycle workshops servicing Giant MY21 road disc hubs
- Riders replacing a worn, noisy, or slipping freehub
