Wouldn't this work? It's a 130/90-16. At work I'm putting 130/90-17 tires on 4-4.5 inch rims on sport bikes.
http://www.bikebandit.com/tires-tubes/motorcycle-tires/duro-hf904-median-motorcycle-tire
Duro HF904 Median Motorcycle Tire
4.6(11 reviews)
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(Rear) Tire Size - Speed Rating: 130/90-16 - S
120/80-18 - S
130/80-17 - S
130/90-16 - S
4.10-18
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(Rear) Specifications and Options
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