Shift Pattern<\/strong><\/td>\n| Sequential: 1-down, remaining gears up.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n driving shaft connected to cranksahft and driven shaft connected by teetch with drving teetch.<\/p>\n 1st gear = driven shaft big wheel (more teetchs) connected to drving cshaft (fixed teetch)<\/p>\n 2nd gear: less teeth than 1st gear wheel<\/p>\n 4th: maybe euql to drving shaft<\/p>\n 5th\/top: less teeth than driving shaft more speed than engine crankshaft\/drvingshaft but less torque.<\/p>\n if drive chain teech =60 and drive chain teeth = 60 thean gear ratio = 60\/60 =1<\/p>\n gear ratio smaller more speed but low stability \/ torque.<\/p>\n ![\"gear](\"https:\/\/in.rajuginni.com\/gear\/wp-content\/uploads\/sites\/3\/2024\/11\/gear-system-engine-transmission.png\") <\/p>\n
\n<\/span>What Is a Gear Ratio?<\/strong><\/span><\/h2>\nA gear ratio is the relationship between the speed of the engine and the speed of the wheels.<\/strong> It determines how power is transmitted from the engine to the rear wheel, impacting the bike\u2019s speed and torque.<\/p>\nGear ratios are calculated by dividing the number of teeth on the driven gear (rear sprocket) by the number of teeth on the driving gear (front sprocket).<\/strong><\/p>\n <\/p>\n Formula<\/strong>:
\nGear Ratio=Rear Sprocket Teeth\/ Front Sprocket Teeth<\/span>\u200b<\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/p>\nFor example, if the rear sprocket has 42 teeth and the front sprocket has 14 teeth:<\/strong><\/p>\nGear Ratio=42\/ 14=3.0<\/span><\/span><\/p>\nThis means the front sprocket rotates 3 times for every full rotation of the rear sprocket.<\/strong><\/p>\n\n\n\n| gear<\/td>\n | drive chain teeth<\/td>\n | driven chain teeth<\/td>\n | gear ratio<\/td>\n | impact<\/td>\n<\/tr>\n | \n| 1st<\/td>\n | 60<\/td>\n | 60<\/td>\n | 1<\/td>\n | same as drive chain speed<\/td>\n<\/tr>\n | \n| 2nd<\/td>\n | 60<\/td>\n | 40<\/td>\n | 1.5<\/td>\n | 1.5x faster<\/td>\n<\/tr>\n | \n| 3rd<\/td>\n | 60<\/td>\n | 30<\/td>\n | 2<\/td>\n | 2x faster<\/td>\n<\/tr>\n | \n| 4th<\/td>\n | 60<\/td>\n | 20<\/td>\n | 3<\/td>\n | 3x faster<\/td>\n<\/tr>\n | \n| 5th<\/td>\n | 60<\/td>\n | 15<\/td>\n | 4<\/td>\n | 4x faster<\/td>\n<\/tr>\n | \n| 6th<\/td>\n | 60<\/td>\n | 12<\/td>\n | 5<\/td>\n | 5x faster<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/span>Example Gear Ratios Table<\/strong><\/span><\/h2>\n\n\n\nGear<\/strong><\/th>\nRatio<\/strong><\/th>\nPurpose<\/strong><\/th>\n<\/tr>\n<\/thead>\n\n\nI Gear<\/strong><\/td>\n| 2.917<\/td>\n | High torque for starting or steep climbs.<\/td>\n<\/tr>\n | \nII Gear<\/strong><\/td>\n| 1.857<\/td>\n | Good for slow-speed maneuvering.<\/td>\n<\/tr>\n | \nIII Gear<\/strong><\/td>\n| 1.333<\/td>\n | Balanced for moderate speeds.<\/td>\n<\/tr>\n | \nIV Gear<\/strong><\/td>\n| 1.050<\/td>\n | For smooth cruising.<\/td>\n<\/tr>\n | \nV Gear<\/strong><\/td>\n| 0.880<\/td>\n | High speed with reduced engine effort.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\n<\/span>How Gear Ratios Affect Motorcycle Performance<\/strong><\/span><\/h2>\n\n- Low Gear Ratios (Higher Numbers)<\/strong>:\n
\n- Provide more torque but lower top speed.<\/li>\n
- Ideal for off-road or climbing steep inclines.<\/li>\n
- Example: First gear has a high ratio like 2.917.<\/li>\n<\/ul>\n<\/li>\n
- High Gear Ratios (Lower Numbers)<\/strong>:\n
\n- Deliver higher top speeds but less torque.<\/li>\n
- Suitable for highway cruising.<\/li>\n
- Example: Fifth gear might have a ratio like 0.880.<\/li>\n<\/ul>\n<\/li>\n
- Primary and Secondary Reduction<\/strong>:\n
\n- Primary Reduction<\/strong>: Ratio between the crankshaft and transmission.<\/li>\n
- Secondary Reduction<\/strong>: Ratio between the front and rear sprockets.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n
Together, these ratios work to optimize power delivery and speed at various stages of riding.<\/p>\n
\n<\/span>Why Gear Ratios Matter<\/strong><\/span><\/h2>\n\n- Acceleration<\/strong>: Lower gears (higher ratios) provide quick acceleration<\/strong> by maximizing torque.<\/li>\n
- Top Speed<\/strong>: Higher gears (lower ratios) enable higher speeds by reducing engine effort.<\/li>\n
- Fuel Efficiency<\/strong>: Proper gear ratios ensure the engine runs efficiently, saving fuel.<\/li>\n
- Custom Performance<\/strong>: Adjusting sprockets can fine-tune your bike for racing, off-road, or touring.<\/li>\n<\/ul>\n
\n<\/span>How to Adjust Motorcycle Gear Ratios<\/strong><\/span><\/h2>\nChanging the sprockets is the most common way to adjust gear ratios.<\/p>\n \n- Smaller Front Sprocket<\/strong>: Increases the gear ratio, enhancing acceleration but reducing top speed.<\/li>\n
- Larger Rear Sprocket<\/strong>: Also increases the gear ratio, delivering more torque at the cost of speed.<\/li>\n
- Opposite Adjustments<\/strong>: Decreasing the rear sprocket size<\/strong> or increasing the front sprocket size lowers the gear ratio for higher top speeds.<\/li>\n<\/ol>\n
Note<\/strong>: Adjustments should be balanced to avoid compromising handling or safety.<\/p>\n![\"Gear](\"https:\/\/in.rajuginni.com\/gear\/wp-content\/uploads\/sites\/3\/2024\/11\/Gear-Ratio-in-bikes-teetth.jpg\") <\/p>\n
\n <\/p>\n
\n<\/span>Pro Tips for Gear Ratio Maintenance and Adjustment<\/strong><\/span><\/h2>\n\n- Check Chain Tension<\/strong>: Adjusting sprockets affects chain tension, so ensure it\u2019s neither too tight nor too loose.<\/li>\n
- Use Quality Sprockets<\/strong>: Opt for durable materials to avoid frequent replacements.<\/li>\n
- Consider Tire Size<\/strong>: Tire size changes can also influence the overall gear ratio.<\/li>\n
- Test After Adjustments<\/strong>: Test ride after making changes to ensure optimal performance and safety.<\/li>\n<\/ol>\n
\n <\/p>\n <\/span>what is gear ratio in bikes<\/span><\/h2>\nA bike’s gear ratio is\u00a0the number of times the rear wheel turns for each rotation of the cranks<\/mark>.<\/p>\nIt’s calculated by dividing the number of teeth on the chainring by the number of teeth on the rear sprocket. For example, if the chainring has 52 teeth and the rear cog has 16 teeth, the gear ratio is 3.25. This means that the rear wheel will turn 3.25 times for every rotation of the cranks<\/p>\n <\/span>
\nGear ratio in Motorcycle simple explanation<\/span><\/span><\/h2>\nDrive gear: connected to engine<\/p>\n Driven gear: connected to load<\/p>\n Drive gear 20teeth, driven gear 30teeth<\/p>\n Drive gear 1.5 times = driven\u00a0 gear only 1 time.<\/p>\n <\/p>\n ratio: 30\/20 or 3\/2 or 1.5:1<\/p>\n <\/p>\n ![\"Gear](\"https:\/\/in.rajuginni.com\/gear\/wp-content\/uploads\/sites\/3\/2024\/11\/Gear-Ratio-in-bikes.jpg\") <\/p>\n
<\/span>Gear Ratios Table of TVS raider 125cc<\/strong><\/span><\/h3>\n\n\n\nGear<\/strong><\/th>\nRatio<\/strong><\/th>\n<\/tr>\n<\/thead>\n\n\nI Gear<\/strong><\/td>\n| 2.917<\/td>\n<\/tr>\n | \n| II Gear<\/strong><\/td>\n | | | | | | | | | | | | | | |