Halo Spin Doctor nutted front stub axles.Some riders feel more confident using BMX style nutted axles, especially with the NEW style of BMX type rigid forks.To convert an existing Halo Spin Doctor Disc hub into a BMX type nutted hub; simply remove the Alloy QR ends from your Spin Doctor Front Disc hub and fit these CNC Cr-Mo stub axles. Complete with CNC nuts & washers.Available in 2 types;3/8" (9.5mm) x 25mm 14mm x 30mm (to fit pegs if desired)