I've noticed people asking how to set up the gear ratio's for their tunes. Well this is how i do it. I've found that it works well & improves lap times on any track compared to having the standard ratios. Here's how. Example. I have here the Audi RS 6 Avant '08 & i want a top speed of 230mph. 1: Go to "Transmission Settings" on the car your tuning. 2: Press "Reset To Default" 3: Enter in your "Max Speed" (For example 230mph) 4: Now you should have what i call the standard ratio's set once you've entered your "Max Speed" Here is the Audi's list below. 1st Gear: 3.708 2nd Gear: 2.410 3rd Gear: 1.722 4th Gear: 1.294 5th Gear: 1.023 6th Gear: 0.849 Final Gear: 3.317 5: Now what you do is take a calculator & enter in the standard ratio for First Gear (3.708). 6: Then take away from 3.708 the lowest possible setting for that gear (Audi is 3.188) 7: Press = and you have 0.52 then divide this by 2 leaving you 0.26. Write down 0.26. 8: Clear the calculator & re-enter the original ratio again which for the Audi is 3.708 then take away the 0.26 you wrote down. Press = & that gives you 3.448 which is your new ratio for First Gear. So basically this is the sum for First Gear 3.708 - 3.188 = 0.52 ÷ 2 = 0.26 (Clear Calculator) 3.708 - 0.26 = 3.448 (Your New Ratio) 9: Repeat this for Gears 2, 3, 4, 5 & 6. Using the original ratios of each Gear. PLEASE NOTE: When tuning 4th Gear you'll notice that 1.294 (Original ratio for 4th gear) - 1.185 (Lowest possible setting) = 0.109 divided by 2 = 0.0545. What you need to do is then round up 0.0545 to 0.055. 10: Now for the "Final Gear". You will notice that there are 2 "Max Speed" windows. The one at the bottom by the "Reset To Default" & the top one by the ratio indicator. You will notice that these have different speeds in. So what you do with the final gear is adjust it so that it matches the same as your "Max Speed" setting at the bottom. (230mph) That's it. Your done. I've tried to explain this in the most simple way i could. Obviously you pick you own top speed to match the car your tuning. I just used 230mph as an example. Hope it helps.