Just finished my second set of offset inserts. For a refresher, these have the m12 hole drilled 1mm offset to the outside, and 3mm up (dropping the caliper 3mm closer to hub)
Horizontal line is for reverence to the install plane. There is a left, and right insert
The cautious side of me does worry about the offset threaded hole being too close to the outside edge. If you think about the loads on the bolts going through the inserts and how the caliper tries to react, the leading insert may have some force going through the thinner area. Most of the force will be horizontal but the trailing end of the caliper will try to pivot up, and the leading end pivot downwards slightly. At least that's my though.
I’m going to try these in an XTS Caliper and see if 3mm down works with the 14” rotor. Unfortunately I left an XTS Caliper as home so I couldn’t machine the clearance for it on the Caliper. Will do on my next lunch break as that takes 5 min.
My hope is 3mm is the right number although 2mm would prob get a little more meat around the bolt which might be more ideal with the 14" rotor's torque. The rotor/Caliper clearance was tighter on the XTS/14” rotor vs the ATS/13” rotor. You may not even need to shave pads if it fits up.
Once I test fit these inserts, and confirm that 0.075" spacer, or machining the mounting face works, I plan on stopping my trials with the 14"/XTS setup and returning the rotor to get my $70 back. I likely will not be making another set of inserts as it takes up way too much of my free time. I've already made 8 of them. At that point, someone else will need to run with this project.
Horizontal line is for reverence to the install plane. There is a left, and right insert
The cautious side of me does worry about the offset threaded hole being too close to the outside edge. If you think about the loads on the bolts going through the inserts and how the caliper tries to react, the leading insert may have some force going through the thinner area. Most of the force will be horizontal but the trailing end of the caliper will try to pivot up, and the leading end pivot downwards slightly. At least that's my though.
I’m going to try these in an XTS Caliper and see if 3mm down works with the 14” rotor. Unfortunately I left an XTS Caliper as home so I couldn’t machine the clearance for it on the Caliper. Will do on my next lunch break as that takes 5 min.
My hope is 3mm is the right number although 2mm would prob get a little more meat around the bolt which might be more ideal with the 14" rotor's torque. The rotor/Caliper clearance was tighter on the XTS/14” rotor vs the ATS/13” rotor. You may not even need to shave pads if it fits up.
Once I test fit these inserts, and confirm that 0.075" spacer, or machining the mounting face works, I plan on stopping my trials with the 14"/XTS setup and returning the rotor to get my $70 back. I likely will not be making another set of inserts as it takes up way too much of my free time. I've already made 8 of them. At that point, someone else will need to run with this project.
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