Last weekend, almost 3,000 cyclists entered the Third Maebashi Mt. Akagi Hill Climb. Held in Maebashi City, Gunma Prefecture, the bike race is a a grueling 20.8km (12.9mi) climb up Mt. Akagi for a vertical difference of 1.3km (0.8mi) from start to finish. Among the racers was the mysterious "Kikumimi Motors," known for racing in cosplay on a moe-decorated and customized mamachyari (mom bike).
As tweeted by fans on the bike route
From the mystery @kikumimimotors himself
A possible KM spotting from the Mamachyari Gran Prix 2010
Speaking of Miku, Wokada posted a hot, end of summer illustration sequence