The H32 replacement bracket is simple to instal requiring no tools with the two way lock system. The H32 Handlebar bracket fits handlebars from 22-26mm thanks to the two possible inserts included. The bracket is compatible with the following CatEye lights:
HL-EL300
HL-EL200
HL-EL110
HL-EL100
HL-MH310
HL-NC300
HL-NC250
HL-NC260
HL-RC220
HL-RC230
HL-1600
HL-1500
HL-MC200
HL-500 II
HL-HD100
HL-550
HL-500
CatEye Part number: 533-8880 (CatEye also call this a reversible bracket)