Few questions real quick.
I’ve used both the Nimbus D-brake as well as frame mounted tab’s in the past. All on the right side of the frame (I.E. external disk).
With the Nimbus, you are using the D-brake technically ‘backwards’ and clearance can be tightish with a Spyre. However, with rotor shims it’s fairly simple to set up.
With a frame mounted tab, I’ve found clearances to be far tighter however, and have had to Loctite the crank bolt since I’ve been unable to fully engage the crank on the ISIS interface.
For my next build, I’m torn between using an adapter or actual frame mounted tab. Which is where my questions come in…
For those using an INTERNAL rotor with a disk specific hub, is the tab spacing identical to that on a bicycle fork?
I’m aware that these hubs come without the disk side bearing mounted. Do these still need to be driven on like regular hub bearings (hammer and a pipe) or will they more or less slide/push on by hand?
Now if I decide to use an adapter, I’m seriously considering the Mountain Uni UCM. But I have a couple questions about that…
Is the UCM steel or aluminum?
It is designed to be used on either side so I think clearance would actually be even better than with the D-brake.
The Mountain Uni site says that they require a Shimano 180 ‘standoff mount’. (seen here: http://mountainuni.com/products/shimano-180mm-standoff-mount)
Is this really required or can I use the adapters provided with my TRP Spyre calipers?
Also, I use 160 mm rotors. This adapter is for 180 mm but Mountain Uni claims it will also work with 160. Can anyone confirm this?
Thanks all!