Ronin #15 is one of a series of motorcycles inspired by vintage race bikes. This motorcycle features an electric blue front end and fuel frame with silver subframe tubes and a silver swingarm. Yellow racing strips complement the blue base at the ends of the fork legs, tail, and swingarm. The bikes in this series also have CNC machined rear sets and battery box and wrapped header pipes.

Number 15 is the third in this group and is named after Mase Masatoki. He was the son of Mase Masaaki. He persevered through the long course of misery and hardship. He was aged 23 on the eventful night.  - Forty Seven Ronin 1893