Feature: 1. PERFECT COMPATIBILITY: This cycling chainwheel is designed to fit for TONGSHENG TSDZ 2 TSDZ 2B mid drive motors, ensuring perfect compatibility and adaptability. 2. ACCURATE DESIGN: It adopts thickened design and accurate tooth design, which increases the load bearing capacity and ensures it is more sturdy and able to withstand long time use and riding. 3. RATIONAL DESIGN: It adopts the standard tooth design, which effectively maintains its stability and prolongs its life, reduces friction and noise, and provides a smoother riding experience. 4. PREMIUM MATERIAL: This cycling chainwheel is made of premium steel material with excellent strength and durability to withstand the challenges of daily riding. 5. EASY TO INSTALL: This cycling chainring is easy to install. Users can easily install it on the mid drive motor without complicated tools or steps, convenient and fast. Specification: Item Type: Cycling Chainwheel Material: Steel Size: 175mm / 6.89in Package List: 1 x Cycling Chainwheel