From One Drop:
“The original 54 was released in 2010 and was the first yo-yo to feature the Side Effects axle system. Side Effects are something we are really proud of and they have stood the test of time. They are a genuine system for modding your yo-yo and nothing wears out. We adorably named it the “54” because it was the biggest diameter we had made to date – at the time, it was considered oversized but not so much now.
With that in mind, the Gen 2 obviously needed to retain the 54” diameter, be a Side Effect yo-yo, and ship with an extra set just like the original did (in this case, clear aluminum Ultra Lights are installed and brass Micro caps are Included). Our idea was to imagine if we could simply hold both ends of a 54 and pull to stretch it out to be considerably wider. We feel like the Gen 2 pays excellent homage to the original while bringing the look and play up to modern standards.”