The Robinson Low Ratio 1st Gear for the Suzuki GSX-R1000 shortens the low gear without a sprocket change. Get through the quarter mile without hitting the rev limiter. FITMENT – 2009-2026 43 tooth / Changes ratio to 2.69 44 tooth / Changes ratio to 2.75 Equivalent To adding approximately 1 Rear Sprocket Teeth. Note: stock ratio is 2.56 FITMENT – 2005-2008 43 tooth / Changes ratio to 2.69 44 tooth / Changes ratio to 2.75 Equivalent To adding approximately 2 Rear Sprocket Teeth. Note: stock ratio is 2.56 FITMENT – 2001-2004 44 tooth / Changes ratio to 2.75 Equivalent To adding approximately 2 Rear Sprocket Teeth. Note: stock ratio is 2.69 FEATURES Stronger than Stock. Made in the U.S.A.   HOW TO PICK A RATIO Example, the 2.69 ratio gear is equivalent to adding one tooth to your rear sprocket, and the 2.75 is like adding two teeth to the rear sprocket. This is approximate, and keep in mind this only affects first gear, and lower ratios will rev out quicker in first gear.