![Amazon.com : BIKEHAND Bike Bicycle Chain Wear Indicator Tool Chain Checker – Compatible with Shimano Sram Campagnolo KMC & Other Brands- 7 to 12 Speed Chains – Maintenance for Road, Mountain & Amazon.com : BIKEHAND Bike Bicycle Chain Wear Indicator Tool Chain Checker – Compatible with Shimano Sram Campagnolo KMC & Other Brands- 7 to 12 Speed Chains – Maintenance for Road, Mountain &](https://m.media-amazon.com/images/W/MEDIAX_792452-T2/images/S/aplus-media-library-service-media/d7cd9d97-33b3-4c02-9f27-e420f9720d5d.__CR0,0,4000,2154_PT0_SX650_V1___.jpg)
Amazon.com : BIKEHAND Bike Bicycle Chain Wear Indicator Tool Chain Checker – Compatible with Shimano Sram Campagnolo KMC & Other Brands- 7 to 12 Speed Chains – Maintenance for Road, Mountain &
![Do I really have to replace the cassette when I replace the chain, or is this a scam? - Bicycles Stack Exchange Do I really have to replace the cassette when I replace the chain, or is this a scam? - Bicycles Stack Exchange](https://i.stack.imgur.com/03QyB.png)
Do I really have to replace the cassette when I replace the chain, or is this a scam? - Bicycles Stack Exchange
![shimano - What are some notable visual observations one can make of a cassette that indicate wear? And to what degree that wear has progressed? - Bicycles Stack Exchange shimano - What are some notable visual observations one can make of a cassette that indicate wear? And to what degree that wear has progressed? - Bicycles Stack Exchange](https://i.stack.imgur.com/JDnKg.jpg)
shimano - What are some notable visual observations one can make of a cassette that indicate wear? And to what degree that wear has progressed? - Bicycles Stack Exchange
![Is my cassette worn enough to need replacing? If not, what might be causing my chain to skip? I just installed a new chain on this road bike. : r/bikewrench Is my cassette worn enough to need replacing? If not, what might be causing my chain to skip? I just installed a new chain on this road bike. : r/bikewrench](https://preview.redd.it/akn6jgpve0051.jpg?auto=webp&s=1abe9d37294700f73a54b3c07ff40970833314d2)