Description
Brand new Portco YA-37-48 purchased from a dealer going out of business
applications AI says
Off-Road, Motocross, and Dual-Sport Motorcycles [1]
Many dirt-focused motorcycles utilize a 520 chain and 48T sprocket right out of the box or as a preferred terrain setup. It provides the ideal balance of low-end torque for crawling over obstacles without sacrificing too much top-end speed on fire roads.
Classic two-stroke Honda motocross models frequently utilize a 48T rear configuration paired with premium components like the Renthal Twinring Rear Sprocket to withstand extreme dirt and mud abuse.
While stock models traditionally run a slightly heavier 525 setup, thousands of riders swap to a lighter 520 chain system. Standard aftermarket steel options like those from PBI or JT Sprockets offer a 48T profile to increase rear-wheel tractor power over rocky hills.
A staple of the dual-sport segment, the KLR series widely adopts 520-pitch drive systems. Companies like JT Sprockets manufacture exact-fit 48T high-carbon steel sprockets tailored directly to Kawasaki dual-sport hubs.
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Street Bikes, Naked Bikes, and Sportbikes
For high-performance road use, riders modify their gear ratios using custom 520 components. Changing a rear sprocket to 48 teeth is a classic "gearing up" modification that increases torque and acceleration, though it lowers the overall top-speed ceiling.
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