Pipe cutter from your local hardware storeīefore we start to do any cutting, we will mock everything up to make sure the steerer tube doesn't end up too short.Because of the tools we have here and what more people might have available to them, we are going to be using a pipe cutter and inner and outer reaming tool to get the job done. You can use a hack saw and Park Tool SG-6 saw guide for a clean and straight cut. There are a few different ways to cut your steerer tube. Follow step by step to make sure you get your steerer cut to the proper length. We will be working on a 2020 Santa Cruz Hightower and mounting up a Fox 36 Grip2 fork. When you buy a new fork, the steerer tube comes excessively long to allow for different head tube lengths and stem configurations. Whether you are building a new custom bike or just upgrading the fork on your mountain bike, you only get one shot at cutting your steerer tube. How To: Cutting the Steerer Tube on Your New Fork Padded / Protective Short Liners / Chamois.Drop-bar Hydraulic Brake / Shift Levers.