I am unable to purchase NGK R5300A spark plugs here in the states. The stateside NGK rep says R7376 is its equal. But i don't think this is a shorty.

Redline lists NGK R7282A (shorty) for the RS250.

Rising Sun Cycles lists NGK R6120 (shorty) for the NSR 250.

Does anyone know the shorty equivalent for the NGK R5300A available here in the states?
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