Enhance the performance and durability of your electric bike with this premium Aluminum Alloy Mid Motor Crank Arm, expertly crafted to provide strong support and long-lasting reliability. Designed specifically for mid motors, this crank arm combines a compact, lightweight structure with precise engineering to ensure a stable and efficient riding experience. Key Features: · Premium Aluminum Alloy Construction: Made from high-quality aluminum alloy, this crank arm delivers excellent durability and resistance to wear, ensuring a long service life even under demanding conditions. · Compact and Lightweight Design: Weighing approximately 555g (19.6oz) with a center distance of about 170mm (6.7in), the crank arm minimizes added weight on your electric bike while maintaining strength and stability. · ISIS Splined Hole with 10 Teeth: Features an ISIS spline interface with 10 teeth and a raised point inner diameter of approximately 18mm (0.7in), providing a secure and precise connection to the mid motor for optimal power transfer. · Wide Compatibility: Specifically engineered for mid motor systems, this crank arm is ideal for various electric bike models, ensuring seamless integration and enhanced performance. · Easy Installation and Removal: Designed for user convenience, the crank arm allows for quick and straightforward installation and disassembly, making maintenance and upgrades hassle-free. Specifications: · Item Type: Crank Arm · Material: Aluminum Alloy · Weight: Approx. 555g / 19.6oz · Center Distance: Approx. 170mm / 6.7in · Interface: ISIS spline hole (10 teeth, raised point inner diameter approx. 18mm / 0.7in) Package Includes: · 1 x Mid Motor Crank Arm This mid motor crank arm is the perfect upgrade for electric bike enthusiasts seeking durability, lightweight design, and reliable performance. Its robust aluminum alloy construction and precise ISIS spline compatibility ensure a secure fit and efficient power delivery, enhancing your electric bike riding experience.