Shimano are notriously cautious. But this reliance on special pins seems like a disaster waiting to happen. The ends of the normal pins are mushroomed so they can't pull out. If you push one out with a chain tool then you remove the edge of the mushroom, making it more likely that the chain with fail at that point. You have to buy special pins each time you break the chain.
Shimano are notriously cautious. But this reliance on special pins seems like a disaster waiting to happen. The ends of the normal pins are mushroomed so they can't pull out. If you push one out with a chain tool then you remove the edge of the mushroom, making it more likely that the chain with fail at that point. You have to buy special pins each time you break the chain.