The Box One XE Fork features a 1` 7000 series alloy steerer tube and a 10mm standard cold-forged and bonded dropoutsEvery piece of unidirectional carbon fiber is placed strategically to optimize weight, strength, and stiffnessInternal butterfly steerer tube and fork crown interfaceCold forged and bonded dropoutsIncludes Box One Stem Lock* Use of a star nut voids the warranty for this productBMX20`Threadless1`NoneCarbon/AL7000Black32mm27mm10mm100mmUPC/EAN/GTIN: 616043831770