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8

It is not advisable to reuse a previously pushed out link pin to rejoin the chain. The chain will quickly come apart at that junction when riding. Shimano chains can be rejoined with a special, speed specific, reinforced chain link pin, which has tapered, guide aspect, followed by the reinforced link pin. When the link pin has been fully inserted into ...


6

I get a grinding noise and vibration when in some gears... Many gears are just fine, but the middle section gives the vibration I had this exact issue on a wheel mounted cassette (on a bike, not a trainer). The sound was there only under load. Replacing the cassette and the chain resolved the issue right away. My understanding is that one should change the ...


5

The Shimano-sanctioned ways: Use an 11-speed Shimano connecting pin. Use a new 11-speed Shimano 2-piece link. Don't try to press a normal link back in. As there are many questions here about, the press fit isn't reliably as strong as intended, which can result in failure. Shimano cautions against seperating and rejoining their two-piece links. While they ...


2

The difference between modern chains (which should be joined with quick links or connecting pins) and older ones (where one could simply press out and press in the existing pin) is that newer chains have riveted pins. The riveting is integral to the chain's strength under side loads. Pressing a riveted pin out destroys the rivet, so the chain is apt to snap ...


2

Further info, back in the old days of 5/6/7 speed chains it was quite normal and accepted practice to push a regular chain pin most of the way out, and then rejoin the chain later by flipping the chain tool and pushing that same pin back in. Sure it got slightly malformed, but one time wasn't generally enough to hurt it, and with 100+ pins in a chain there ...


1

You're doing something wrong. Firstly, good quality chains with proper care schedule should give 4000 km before they wear to 0.5% limit. You getting only 1300-1600 km before chain wearing to 0.75% limit (higher than 0.5%), means there's something wrong in your chain care schedule. My chains are nowhere near "breaking" (assuming this means ...


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