Standard spec for Urban Arrow and other cargo bike brands…

Rear wheel, 26 inch, ryde 40 rim, HD Enviolo hub,

Suit all Urban Arrow except perhaps early Urban Arrows with a treking hub (check the hub shell for ‘TR’ or ‘TREKING’ marked on it. then you need a new interface too….shifter should work but likely its work too…so a fresh one is advised (honest, its not just me trying to get another sale)