rivet

Hey guys thanks for any help. I am a first time chain driven bike owner. I noticed while cleaning the chain last week that the rivet on the master link was missing part of the 'mushroom.' Is this something I should be worried about? The chain is an EK 530 ZZZ with like a 11,000 lb/ft rating or...

have a practically brand new Motion Pro Chain Tool Jumbo. It breaks and rivets the chain. I used it once and it was really easy to use. It took just a few minutes to break the old chain and install the new chain. I bought a really high quality tool because I wanted to wanted to use it for many...