First off, (slightly belatedly) HAPPY NEW YEAR! Its a new year and a new shop (again) for me. I am still at the Lemp Brewery I just moved to a much more workable space with a lot more natural light. It is on the fourth floor now but the money saved with the new location will help me save up for a nice mill!
So on the frame that I am currently working on it is a single speed road bike with disc brakes. This presents two problems, the first being that there are (currently) not any 130mm road disc single speed hubs available. The solution to this is using a MTB disc single speed with 135mm spacing. This is typcially a heavier duty hub and will have a wider rear triangle but for right now this is the only solution.
rear triangleThe bigger issue is that because I went with the very simple (not to mention beautiful) Paul horizontal dropouts I was going to have an issue with the disc brake caliper possibly not being positioned correctly. This is caused by needing to have the caliper positioned at a certain position in relation to the wheel axle. With standard disc brake mount the caliper is in a static location in relation to the rear wheel axle. With the horizontal dropouts the wheel can be position anywhere along the dropout and subsequently the disc brake caliper will not be in the correct position. My solution was to fabricate a disc brake tab with slots similar to of the dropout that will allow me position the caliper at the correct location in relation to the wheel axle. Basically all that means is that I now have a way to position the disc brake caliper where it needs to be.