ACS Flip-Flop BMX 36 Hole hubs (Silver), feature CNC machined aluminum shells, 3/8" solid chromoly axles, sealed R6 bearings, and threading for 13 -15T and 16 - 22T right-hand drive freewheels. Thread specifications are M30x1 small metric threads and 1.37-24tpi English threads. MADE IN TAIWAN
Outer locknut dimensions are 100mm front and 110mm rear for most SINGLE SPEED bikes.
This rear hub features a slide-off shoulder for easy freewheel removal. A pair of 2-pin removal tools is included to remove/install the lock nuts.
Dimensions for spoke calculations are:
Front:
100mm outer locknut
17mm locknut to flange, both sides
37mm flange diameter
2.5mm spoke holes
Rear:
110mm outer locknut
28mm locknut to flange, both sides
47mm flange diameter
2.5mm spoke holes