PRIMAL 27.5: Our most popular hardtail bike for trail riding has some big improvements for 2016 to make your riding experience even better. Lower front triangle geometry, based on re shaped hydroformed tubes will make your bike stiffer and better looking. Dartmoor Primal is still available in 3 sizes so you can pick a perfect one for your height and riding style. We kept the popular 135x10mm hub standard for rear wheel. Primal became one of the most popular All Mountain/Trail hardtail frames in the past years. Why? You should try yourself with this cool looking new version of this frame and we guarantee you will be 110% satisfied!