Features1 COMPATIBILITY: This cycling chainwheel is designed to fit for TONGSHENG TSDZ 2 TSDZ 2B mid drive motors, ensuring compatibility and adaptability. 2ACCURATE 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. 3RATIONAL 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 MATERIAL: This cycling chainwheel is made of steel material with strength and durability to withstand the challenges of daily riding. 5EASY 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.SpecificationItem Type: Cycling ChainwheelMaterial: SteelSize: 175mm / 6.89inPackage List1 xCyclingChainwheel