Thread:Gokyr586/@comment-24798574-20170403140728

From the Kamen Rider × Super Sentai Chou Super Hero Taisen Official Photo Book Mook, every Gorider members have a hyphen between their color and the word Rider... (for example: Aka-Rider)

Sources: AKA-RIDER AO-RIDER MOMO-RIDER KI-RIDER MIDO-RIDER 