hholm Added a comment about bike check Custom Trek Fuel EX Gen 6 3/7/2023 9:53am Awesome build! Great idea with the spacer. Do you by chance have a CAD file for it? I’m running into the same issue with my Fuel EX. Otherwise, how thick did you have to make it to work well with the OneUp guide? Thanks! Votes: You must have JavaScript enabled to use this form. 1 Save This bike check has 12 comments.