The Nexus can work with 130 or 135 mm rear spacing -- it comes with rather thick anti-rotation washers. If you put the washers on the outside of the track ends/dropouts it is spaced for 130. If you put them on the inside it is spaced for 135. Sheldon created the San Jos8 which has track ends and uses the 8-speed hub. If you find that you can't get to 130 with your frame, maybe a 3-speed SA hub will work for you. Those come in 120mm variants.