Upgrade your electric bike maintenance with this high-quality Electric Bike Crank Arm, designed as an ideal replacement part for Bafang BBS01, BBS02, BBS03, and BBSHD built-in drive motors. Crafted from durable aluminum alloy, this crank arm ensures maximum strength and long-lasting performance, making it a reliable component for your e-bike drivetrain. Key Features: · **Compatible with Bafang Motors:** Specifically engineered to fit Bafang BBS01, BBS02, BBS03, and BBSHD built-in drive motors, providing a perfect replacement for original or worn-out crank arms. · **Premium Aluminum Alloy Construction:** Made from sturdy aluminum alloy material, offering excellent durability, wear resistance, and lightweight strength for enhanced riding efficiency. · **User-Friendly Mounting:** The left pedal features a reverse thread (counterclockwise tightening) to simplify installation and removal, saving time and effort. The driving side is standard threaded for clockwise mounting, ensuring correct and hassle-free assembly. · **Precise Fit and Size:** Manufactured with accurate dimensions and shape to guarantee a snug and secure fit, facilitating quick installation without the need for extensive adjustments. · **Lightweight Design:** Weighing approximately 457g (16.1oz), this crank arm balances strength with a lightweight profile to maintain optimal bike performance. Specifications: · Item Type: Electric Bike Crank Arm · Material: Aluminum Alloy · Color: As Picture Shown · Application: Compatible with Bafang Built-In Motors (BBS01, BBS02, BBS03, BBSHD) · Gross Weight: Approx. 457g / 16.1oz Package Includes: · 1 x Electric Bike Crank Arm This Electric Bike Crank Arm combines durable construction, precise engineering, and easy installation, making it an essential replacement part for maintaining and enhancing the performance of your Bafang-equipped electric bike.