Do your XR150L forks suck horrifically? (Yes, they do) Allow me to solve that for you, no matter your level of experience with tuning suspension.
This book will give you everything you need to get the most out of your XR150L front end. Guidance ranging from simple tuning on a shoestring budget, all the way to full internal conversion into separate function forks. Simply the best application-specific guidance, in one place, from someone who really rides the heck out of an XR150L every day (and simply couldn't settle for mediocre.)
....And I'm mega jealous that this is available to you! Because it didn't exist for me. I had to create it. And that took months of testing different setups, not to mention tons of money spent, to bring you this refined product.
Choose from instant PDF delivery or physical delivery.