Specifications on how much to flare the rivet head are hard to come by, at least for EK chains. So here's some numbers which should be good for other brands too if you can't find specs from the manufacturer. This is for the concave head rivets. Idk if it applies to flat rivets which then get staked square.
Several sources around the internet suggest flaring the head by .5 to .7 mm more than the original pin diameter. Some sources say .4 to .7, but I'd be cautious and go with .5 as the minimum.
For those who don't have a metric caliper be sure to use an accurate conversion. There are free conversion websites. Measure the unflared rivets carefully, don't rely on a printed or online number!
0.5mm is .0197 inches
0.7mm is .0276 inches
Add those amounts to the measured diameter of the rivet in the master link. That is your target diameter for the flared rivet head.
You'll need calipers to accurately set the side plate onto the pins to the same dimension as the rest of the chain. Calipers can be purchased quite inexpensively.
This video on installing a rivet master link is the best I found. Skip to 5:34 to get to the master link installation. (The earlier part of the video is an excellent tutorial if this is your first time replacing a chain)
Several sources around the internet suggest flaring the head by .5 to .7 mm more than the original pin diameter. Some sources say .4 to .7, but I'd be cautious and go with .5 as the minimum.
For those who don't have a metric caliper be sure to use an accurate conversion. There are free conversion websites. Measure the unflared rivets carefully, don't rely on a printed or online number!
0.5mm is .0197 inches
0.7mm is .0276 inches
Add those amounts to the measured diameter of the rivet in the master link. That is your target diameter for the flared rivet head.
You'll need calipers to accurately set the side plate onto the pins to the same dimension as the rest of the chain. Calipers can be purchased quite inexpensively.
This video on installing a rivet master link is the best I found. Skip to 5:34 to get to the master link installation. (The earlier part of the video is an excellent tutorial if this is your first time replacing a chain)