With room for up to 2. 9in wide tires, and seemingly unlimited adjustment options, the Cane Creek Helm MK II 27. 5in Boost Coil Fork is ready to handle our most epic trail adventures. The revised damper is tuned for increased support and precision control so we can bob and weave through technical terrain with confidence, while an internal travel adjustment lets us fine-tune our travel in 10mm increments for our next trail bike build.