Brose Belt Maintenance Kit – Magnesium Motors / Specialized Gen2

The Brose Belt Maintenance Kit is designed for Brose motors with magnesium housing (Brose Mag).

This kit includes the new reinforced drive belt, offering improved durability and performance.

If your motor still has the original pre-2020 belt, it’s strongly recommended to upgrade to this reinforced version to prevent premature wear or belt failure.

⚠️ Important:
If the belt has already broken, a complete internal cleaning of the motor is essential — belt fragments can damage the internal plastic gears if left inside.

Kit Contents:

• Reinforced Carbon Belt

• New Magnesium Screws (must always be replaced; magnesium hardware is single-use)

• Main Motor Housing Gasket

• Bearing Seat Gasket (for the rotor support bearing located in the cover)

💡 Installation Tip:
Apply a thin layer of petroleum jelly (vaseline) on the belt before installation and tighten with a calibrated torque wrench to 0.2 Nm.

Compatibility:

Compatible with all Brose motors with magnesium housing, including:

• Brose Drive S Mag

• Brose Drive C Mag

• Brose Drive T / TF / H Mag

• Specialized Turbo 2.x systems

Used in models from Specialized, Fantic, BH AtomX, Bulls, Rotwild, Decathlon, and other e-bike brands.

Common examples:

• Specialized Turbo Levo Gen2 / Gen3

• Specialized Kenevo Gen2

If you’re unsure which motor your bike has, feel free to contact us for confirmation.

✅ Note: For professional installation, we recommend using a calibrated torque wrench and performing a full motor inspection before reassembly.