SHIMANO Cassette Sprocket 20T Be Used with Please Use Y1ZN18000 Without Guard ICSS50020 ALFINE CS-S500 (with Guard) 2.0mm Cannot SG-S7051, SG-S705,

【Voltage Compatibility】 When using electrical appliances, please note that they are designed for Japanese voltage specifications (90-110V), so if you use them with a different voltage, it may cause a malfunction. 【Plug Type】 Our products use Japanese plug types (A or B type). Please use a conversion adapter if necessary. 【Important Note on Transformers and Adapters】 A transformer adjusts voltage to match your device’s requirements. A conversion adapter only changes the plug shape and does not adjust voltage. Using only a conversion adapter without a transformer may result in damage to the product. 【Liability】 We are not responsible for malfunctions or damages caused by improper use, such as operating the product without a transformer. Shimano part: ICSS50020 Model : CSS500 Speed: Single Teeth count: 20T