All Box One forks are engineered and crafted using our Oversized Technology. These forks are the single most important component in the quest for bike control. We’ve moved carbon from areas of low stress to areas that handle high load. Those muscular shoulders aren’t just for looks as they are integral to achieving superior steering stiffness. When combined with Box’s other Oversized components, you’ll experience heightened responsiveness and reduced latency. Key differences: This model built off of our title winning X5 platform features our race developed Oversized Technology, featuring a 1.5 to 1-1/8 inch alloy steerer tube. Designed with increased tire clearance and larger hips, it delivers enhanced stiffness and performance. The inclusion of robust 20mm thru axle cold-forged dropouts ensures maximum durability and stability. Say goodbye to deflection and hello to race winning performance. Weight Limit: 115kg (253 lbs) with limitations as per Category 2 of EN 16054:2012 Standard For compatibility questions, please click here .