# Gear Ratios / Sprocket Changes From the factory, the Rush SR ships with a 14T front sprocket and a 44T rear sprocket. The front sprocket is easy to change with a 32mm socket, and you can buy extra sprockets directly from RAW. See the attached gear calculator for ratios. In short, if you are redlining in 6th, you should run a longer (higher-tooth) front sprocket. If you are not even making it into 6th, you should consider a shorter sprocket. Our owners have also enjoyed changing sprockets to avoid "awkward" shift points. Sometimes it is better to redline 6th for a moment and enjoy shorter ratios on the rest of the track! {% file src="" %} ## Recommended Sprockets by Track (2026 Season) These are community-tested starting recommendations. When in doubt, 14T is the safer choice — you'll occasionally rev-limit in 6th, but the tighter ratios are faster overall at most tracks. | Track | Recommended | Notes | | ------------------------- | ----------- | --------------------------------------- | | Carolina Motorsports Park | 14T | Technical track, short straights | | Road Atlanta | 15T | Long back straight | | Gingerman Raceway | 14T | Mix of low and medium speed | | Watkins Glen | 15T | Frontstretch and bus stop straight | | Lime Rock Park | 14T | Very technical, no long straights | | Laguna Seca | 14T | Corkscrew section punishes tall gearing | **Rule of thumb:** If you're hitting the rev limiter in 6th for more than a few seconds, go up one tooth. If you never make it into 6th, go down one tooth. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://manual.rush.sr/tunables/gear-ratios-sprocket-changes.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.