Knight Mini BMX Power Disc

SPECIFICATIONS     Style: Retro Style Mini BMX Power Disc Features: Allows you to run 33t and up chainrings (sold separately) Material: 6061-T6 Aluminum fully CNC machined BCD:  110 Bore Hole:  24mm Fits 1-piece cranks and 24mm cranks without adapters 19mm cranks will require 24mm to 19mm adapter (not included) 22mm cranks will require 24mm to 22mm adapter (not included)   Solid Colors: Black, Blue, Gold, Red, Raw Silver Limited Colors: Mirror-Polished, and special colors  Made in USA Chainring bolt sizes recommended:Single-ring Short / 4mm inside measure when tight / 7mm total height / M8x6mm Bolt / M8x4mm Nut