24" x 20mm Box X2 Pro Carbon Fiber BMX Race Fork - 1-1/8" Threadless - Black 18t It is a straight 3/8"

It is a straight 3/8" (10mm) bolt that will fit 3/8 drop outs

Washer can be used inside and outside of bottom bracket for perfect chain alignment and bearing spacing

Arm length: 160mm

the GDH Ti Crank axle is designed for weight savings which can mean a reduction in strength

24" x 20mm Box X2 Pro Carbon Fiber BMX Race Fork - 1-1/8" Threadless - Black 18t It is a straight 3/8"The Box One X2 Cruiser Fork has the optimal balance of weight, strength and stiffness. Professional fork builders place every unidirectional carbon fiber strategically to optimize weight, strength, and stiffness. Designed with Oversized Technology, the Box One X2 Fork features a chromoly steerer tube and a 20mm through axle cold forged bonded dropouts. A Box One Stem Lock and Box One axle adapters are included (axle adapters will only work with 3 8"