AEROZINE MTB 2X Double Chainring // 4-Bolt BCD104/64mm
Precision Shifting. Premium MTB Upgrade.
Take your MTB drivetrain to the next level with the AEROZINE 2X Double Chainring — engineered for riders seeking smooth, reliable shifting and precise gear control on every trail.
Crafted from 7075-T6 aluminum and fully CNC-machined, each ring delivers lightweight strength, stiffness, and long-lasting performance.
Designed for 4-Bolt BCD104/64mm SHIMANO interface crank arms, this double chainring set is compatible with SHIMANO and SRAM 8 / 9 / 10 / 11-speed drivetrains, making it a versatile upgrade for both classic and modern MTB setups.
Key Features:
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Material: CNC-machined 7075-T6 Aluminum
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BCD: 4-Bolt 104/64mm (SHIMANO interface)
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Compatibility: SHIMANO / SRAM 8–11s double chainring setups
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Sizes Available:
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42-29T (CH-42-104c-70-4-05 / CH-29-64-70-3-05)
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40-27T (CH-40-104c-70-4-05 / CH-27-64-70-3-05)
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39-26T (CH-39-104c-70-5-05 / CH-26-64-70-3-05)
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38-24T (CH-38R-104c-70-4-05 / CH-24-64-70-3-05)
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36-22T (CH-36R-104c-70-5-05 / CH-22-64-70-3-05)
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Color: Blast Black
Why Choose AEROZINE: Optimized tooth profiles for smooth, precise shifting, lightweight durability, and perfect for premium MTB DIY upgrades.











