Features1Applicable Model: 46T 104 BCD chainring and adapter is compatible for Tongsheng mid drive motor. A good modification part. 2Aluminum Alloy Material: The material is aluminum alloy, the hardness is much higher than the original steel sprocket, sturdy and durable. 3Fine Workmanship: Using aluminum alloy CNC cutting to ensure product use accuracy. Exquisite workmanship, beautiful appearance. 4Replacement Part: 104 BCD chainring and adapter is easy to install and disassemble, you can replace the old or damaged parts to obtain higher strength. 5Closely Fitting: Closely fit the original machine hole position with accurate shape and size design, hand feelings are still comfortable.SpecificationItem Type: 104 BCD Chainring and AdapterMaterial: Aluminum AlloyBCD: 104MMWeight: Approx. 243g / 8.6ozPackage List1 x 104BCDChainRingConversionKit