..a gates premium 729-18-28 would work well...it's pretty close, if not just longer than the oem bando..
..a gates premium 732-18.5-28 is a good 3/16" longer than the oem bando, and wider as well...
..i've never ran the 732 in a 4t scoot yet, but i like the possibilities...
.i think streido is running a 736 belt, and has a damn good performing scoot!!..
..but if your bando has less than sayyy...7000-10,000 kms onnit, i'd tune to that belt...those bando's are hard to beat....