Leading Link procured. Want to "float" the brakes. Need help.
Hi!
I've found an early "UNIT" leading link front end to replace my raked trees. Part of the my motivation is driveability and part is that the LL more suits the visual style of the rig. I've gotten through the basic re-dimensioning of it to fit my unraked trees (Moto Guzzi 45mm), but I'm having a real problem getting the brakes set up.
The heart of the problem seems to be the oem mounts (dual caliper setup). They are intended for a certain Brembo caliper and a certain disk size. I'm ok with the caliper size, but I've got 320mm disks, and the mounts are welded in and spaced for ~180mm.
I can change rotors but I don't want to lose the extra area. I can replace the mount lugs in a better location for 320mm disks. I can find someone's caliper, somewhere, that has a proper mounting arrangement for the angles and distances, while maintain the piston sizes (not bloody likely). None of these solutions "improve" the OEM design, which I am told (but don't fully understand) is flawed.
Or I can abandon the OEM mounting altogether and use a floating design, which I am told (but don't fully understand) eliminates the issues of a fixed caliper mount. I have studied on the pictures you folks have posted to try understanding how to build the floating brackets, but I could use an essay or two from the folks who have done it and know.
So . . . why float them? How do I float them? What are the pitfalls to avoid while tinkering? Must I do both sides? Most important -- pics of how it was done on your build. Thanks!
Here's a look at the trike in question:
Hi!
I've found an early "UNIT" leading link front end to replace my raked trees. Part of the my motivation is driveability and part is that the LL more suits the visual style of the rig. I've gotten through the basic re-dimensioning of it to fit my unraked trees (Moto Guzzi 45mm), but I'm having a real problem getting the brakes set up.
The heart of the problem seems to be the oem mounts (dual caliper setup). They are intended for a certain Brembo caliper and a certain disk size. I'm ok with the caliper size, but I've got 320mm disks, and the mounts are welded in and spaced for ~180mm.
I can change rotors but I don't want to lose the extra area. I can replace the mount lugs in a better location for 320mm disks. I can find someone's caliper, somewhere, that has a proper mounting arrangement for the angles and distances, while maintain the piston sizes (not bloody likely). None of these solutions "improve" the OEM design, which I am told (but don't fully understand) is flawed.
Or I can abandon the OEM mounting altogether and use a floating design, which I am told (but don't fully understand) eliminates the issues of a fixed caliper mount. I have studied on the pictures you folks have posted to try understanding how to build the floating brackets, but I could use an essay or two from the folks who have done it and know.
So . . . why float them? How do I float them? What are the pitfalls to avoid while tinkering? Must I do both sides? Most important -- pics of how it was done on your build. Thanks!
Here's a look at the trike in question: