This 125GP Gearing list was compiled by 125GP racers, it's intention is to give you a
ballpark setting. Please feel free to add any racetrack you do not see listed. If the racetrack can be run in different
configurations, specify that in the track description [ex. Pocono (short course)]
Since anyone can create new entries, the accuracy of this list cannot be guaranteed, However...
This is a "for the people, by the people" type effort and is only as good as you make it. Report bad postings and/or use the rating controls to credit/discredit entries.
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| Track | Gearing | Ratio | Rating | Comments |
| Aghadowey | 15 / 40 | 2.67 | | |
| Aghadowey | 15 / 38 | 2.53 | | watch out for the cows at turn two! |
| Aghadowey | 15 / 39 | 2.60 | | maybe a 40 rear depending on speed |
| Alastaro | 17 / 36 | 2.12 | | |
| Alastaro | 15 / 39 | 2.60 | | |
| Alastaro | 15 / 36 | 2.40 | | |
| Albi | 15 / 36 | 2.40 | | |
| Almeria | 15 / 36 | 2.40 | | |
| Almeria | 16 / 35 | 2.19 | | |
| Assen | 16 / 39 | 2.44 | | |
| Assen | 15 / 36 | 2.40 | | 54 |
| Assen | 16 / 38 | 2.38 | | |
| Assen | 15 / 35 | 2.33 | | |
| Assen | 16 / 37 | 2.31 | | Look out for the windmills on turn four |
| Assen | 15 / 40 | 2.67 | | |
| Assen | 16 / 40 | 2.50 | | std 123456 |
| Assen short circuit | 15 / 38 | 2.53 | | for less powered engines (15/37, by no wind ) |
| Assen short circuit | 15 / 36 | 2.40 | | |
| Atlantic Motorsports Park | 14 / 38 | 2.71 | | |
| Barber Motorsports Park | 15 / 36 | 2.40 | | |
| BeaveRun North | 16 / 37 | 2.31 | | |
| Bermuda Motorsport Park | 14 / 41 | 2.93 | | 13 Front Recomended |
| bishopscourt | 16 / 39 | 2.44 | | |
| Blackhawk Farms | 15 / 37 | 2.47 | | |
| Blackhawk Farms | 15 / 36 | 2.40 | | |
| Brainerd International Raceway | 17 / 37 | 2.18 | | |
| Brainerd International Raceway | 15 / 36 | 2.40 | | 5 |
| Brands Hatch Indy | 15 / 36 | 2.40 | | |
| Brands Hatch Indy | 16 / 39 | 2.44 | | longer but good for qualifying |
| Brands Hatch Indy | 14 / 40 | 2.86 | | |
| brno | 15 / 36 | 2.40 | | |
| brno | 15 / 38 | 2.53 | | |
| Buttonwillow Raceway Park | 15 / 37 | 2.47 | | |
| cadwellpark | 15 / 38 | 2.53 | | |
| cadwellpark | 15 / 36 | 2.40 | | sound |
| california speesway | 14 / 41 | 2.93 | | |
| Carolina Motorsports Park | 15 / 36 | 2.40 | | |
| Cartagena | 15 / 36 | 2.40 | | |
| Cayuga | 15 / 37 | 2.47 | | |
| Croft | 15 / 37 | 2.47 | | |
| Croft | 15 / 36 | 2.40 | | |
| Darley Moor | 15 / 36 | 2.40 | | |
| Daytona International Speedway | 15 / 36 | 2.40 | | |
| Daytona International Speedway | 17 / 37 | 2.18 | | |
| Djursland | 15 / 36 | 2.40 | | |
| donington | 15 / 36 | 2.40 | | sound |
| donington | 16 / 36 | 2.25 | | good everywhere |
| East London G.P. S/Africa | 16 / 36 | 2.25 | | Longest straight in SA |
| Eastern Creek | 16 / 36 | 2.25 | | |
| elvington | 15 / 37 | 2.47 | | |
| elvington | 16 / 37 | 2.31 | | |
| Fontana | 16 / 37 | 2.31 | | |
| Fontana | 15 / 39 | 2.60 | | |
| Fontana | 15 / 36 | 2.40 | | |
| Gateway International Raceway | 15 / 36 | 2.40 | | Shift to 6th before start finish and top it out before letting off the throttle into turn 1 |
| Gingerman Raceway | 15 / 40 | 2.67 | | |
| Gingerman Raceway | 15 / 39 | 2.60 | | |
| Grattan Raceway | 16 / 37 | 2.31 | | |
| Grattan Raceway | 16 / 36 | 2.25 | | |
| Grattan Raceway | 15 / 34 | 2.27 | | |
| Haistings | 16 / 42 | 2.63 | | Try 10/66 but could be a bit of a battle! |
| Haistings | 15 / 36 | 2.40 | | |
| Hallet Motor Racing Circuit | 15 / 36 | 2.40 | | |
| Hallet Motor Racing Circuit | 16 / 38 | 2.38 | | |
| Hawaii Raceway Park | 15 / 36 | 2.40 | | |
| Hidden Valley (Darwin Australia) | 16 / 37 | 2.31 | | or 15/37 with a head wind |
| Hidden Valley (Darwin Australia) | 14 / 37 | 2.64 | | Eurivum http://111111tdyt7.com dagger 222222 [url=http://33333ygjbiu87.com]333333[/url] Sylvalus |
| Homestead-Miami Speedway | 15 / 39 | 2.60 | | |
| Homestead-Miami Speedway | 15 / 36 | 2.40 | | 17 |
| Indianapolis Raceway Park | 16 / 37 | 2.31 | | |
| Infineon Raceway | 15 / 38 | 2.53 | | w/ T9 chicane |
| Jennings | 15 / 37 | 2.47 | | |
| JenningsGP | 15 / 39 | 2.60 | | 1:19.5 Thanks PJ!! |
| JenningsGP | 15 / 35 | 2.33 | | Mik Danese May 05 |
| Karlskoga | 16 / 36 | 2.25 | | |
| Karlskoga | 15 / 40 | 2.67 | | or use 15, 41 with a long 6t gear for top end.need short 1st |
| Knutstorp | 16 / 36 | 2.25 | | |
| Laguna Seca | 15 / 36 | 2.40 | | |
| Ledenon (France) | 15 / 36 | 2.40 | | |
| Longhorn Motorsport Ranch | 14 / 37 | 2.64 | | |
| lydden | 15 / 42 | 2.80 | | long top, 4th at 1st & last,3rd at devilsuse 2nd at hairpin. |
| MALLORY | 15 / 39 | 2.60 | | |
| MALLORY | 16 / 36 | 2.25 | | perfect for club racers to win |
| MALLORY | 15 / 36 | 2.40 | | 188km/hr |
| Manfield | 15 / 36 | 2.40 | | |
| Memphis Motorsports Park | 16 / 38 | 2.38 | | |
| Mid-America Motorplex | 15 / 36 | 2.40 | | |
| Mid-Ohio Sports Car Course | 15 / 36 | 2.40 | | |
| Mid-Ohio Sports Car Course | 16 / 37 | 2.31 | | |
| Mission Raceway Park | 14 / 41 | 2.93 | | needs shorter 2nd and taller 1st |
| Mission Raceway Park | 15 / 41 | 2.73 | | super short first /short second |
| Mondello Park | 15 / 36 | 2.40 | | |
| Monmelot spain | 15 / 36 | 2.40 | | |
| morgan park | 15 / 40 | 2.67 | | anyone tryed this |
| moroso | 15 / 36 | 2.40 | | |
| Moroso Motorsports Park | 15 / 38 | 2.53 | | 23 |
| Moroso Motorsports Park | 15 / 39 | 2.60 | | |
| Moroso Motorsports Park | 14 / 39 | 2.79 | | 1:43.3 |
| Mosport | 16 / 36 | 2.25 | | |
| Mosport | 16 / 37 | 2.31 | | |
| Motopark Oschersleben | 15 / 36 | 2.40 | | |
| Mt-Tremblant | 16 / 36 | 2.25 | | Some used 16 /37 and Hjelm used 17 38 |
| mugello | 15 / 36 | 2.40 | | |
| mugello | 17 / 37 | 2.18 | | Very good max speed 225 by Tommy from Italy |
| mugello | 15 / 42 | 2.80 | | |
| Nashville SuperSpeedway | 15 / 36 | 2.40 | | |
| Nelson Ledges Road Course | 16 / 38 | 2.38 | | |
| Nevers Magny-Cours | 15 / 36 | 2.40 | | |
| New Hampshire International Speedway | 15 / 38 | 2.53 | | |
| New Hampshire International Speedway | 15 / 39 | 2.60 | | for mortals, 15/38 for the real fast guys. |
| No Problem Raceway | 15 / 37 | 2.47 | | Maybe a 15/36 |
| North Florida Motor Sport Park | 14 / 37 | 2.64 | | 69 |
| North Florida Motor Sport Park | 15 / 36 | 2.40 | | Ran 15/37 but was to short at the end of back straight |
| Oak Hill Raceway | 16 / 41 | 2.56 | | |
| Oak Hill Raceway | 15 / 40 | 2.67 | | |
| Oak Hill Raceway | 15 / 35 | 2.33 | | Engova http://111111tdyt7.com yxlwyhi 222222 [url=http://33333ygjbiu87.com]333333[/url] Lucitand |
| Oran Park | 15 / 36 | 2.40 | | |
| oulton | 16 / 40 | 2.50 | | |
| oulton | 15 / 36 | 2.40 | | |
| Pahrump (Spring Mountain) | 17 / 36 | 2.12 | | Malygis http://111111tdyt7.com swoop 222222 [url=http://33333ygjbiu87.com]333333[/url] Austrona |
| Pahrump (Spring Mountain) | 16 / 40 | 2.50 | | 15/37 will work for faster bikes |
| Pau - Arnos | 15 / 36 | 2.40 | | |
| Phillip Island | 16 / 37 | 2.31 | | |
| Phillip Island | 15 / 36 | 2.40 | | |
| Phillip Island | 16 / 39 | 2.44 | | |
| Pocono International Raceway | 16 / 37 | 2.31 | | |
| Portland International Raceway | 16 / 36 | 2.25 | | shrter 2 and 3rd |
| Portland International Raceway | 17 / 38 | 2.24 | | |
| Pukekohe | 15 / 36 | 2.40 | | |
| Putnam Park Road Course | 16 / 38 | 2.38 | | |
| Queensland Raceway | 15 / 36 | 2.40 | | |
| Raceway Park Road Course | 14 / 41 | 2.93 | | tough getting out of 2nd except on the straights |
| Road America | 17 / 37 | 2.18 | | |
| Road Atlanta | 17 / 37 | 2.18 | | 16/37 is WAY short. '03 WERA GNF winner running 17/35 |
| Road Atlanta | 16 / 37 | 2.31 | | |
| Roebling Road Raceway | 16 / 36 | 2.25 | | |
| Sears Point Raceway | 15 / 36 | 2.40 | | |
| Sears Point Raceway | 15 / 38 | 2.53 | | with T9 Chicane |
| Seattle International Raceway | 16 / 37 | 2.31 | | short 1st, 2nd, 3rd & 4th |
| Seattle International Raceway | 15 / 36 | 2.40 | | 38 |
| Second Creek Raceway | 15 / 38 | 2.53 | | |
| Shannonville | 15 / 38 | 2.53 | | |
| Shannonville (Fabi) | 15 / 37 | 2.47 | | |
| Shannonville (Nelson) | 14 / 40 | 2.86 | | 13/37 works really well too. |
| Shannonville (Pro Track) | 15 / 36 | 2.40 | | |
| Shannonville (Pro Track) | 15 / 41 | 2.73 | | Michele Danese ran this with lower internal 1st,2nd,and 3rd |
| Shannonville (Pro Track) | 15 / 37 | 2.47 | | or 15/36 |
| snetterton | 16 / 36 | 2.25 | | Spot on Tommy |
| snetterton | 16 / 37 | 2.31 | | hitting 6th gear perfect (standard bike) |
| Spa-Francochamps | 16 / 38 | 2.38 | | |
| Spa-Francochamps | 15 / 36 | 2.40 | | |
| Spa-Francochamps | 16 / 37 | 2.31 | | |
| Spokane Raceway | 16 / 35 | 2.19 | | short 1st, 2nd 5th and 6th |
| St. Eustache | 15 / 38 | 2.53 | | |
| Streets of Willow | 15 / 39 | 2.60 | | |
| Summit Point Raceway | 16 / 37 | 2.31 | | |
| Talladega Gran Prix Raceway | 15 / 40 | 2.67 | | |
| Tanacross | 14 / 37 | 2.64 | | |
| Tanacross | 15 / 36 | 2.40 | | Will try 15/39 next |
| Tanacross | 15 / 37 | 2.47 | | |
| Teretonga Park | 15 / 36 | 2.40 | | One of the fastest tracks in New Zealand |
| Texas World Speedway | 16 / 37 | 2.31 | | |
| Texas World Speedway | 15 / 37 | 2.47 | | |
| Texas World Speedway | 16 / 35 | 2.19 | | |
| Three Sisters | 14 / 42 | 3.00 | | 13 front 43 rear preferable |
| Three Sisters | 14 / 37 | 2.64 | | won a championship |
| Thunderhill Park Raceway | 15 / 37 | 2.47 | | |
| Thunderhill Park Raceway | 15 / 38 | 2.53 | | Or try a 16/39 |
| Topeka | 15 / 36 | 2.40 | | |
| VIR North | 16 / 38 | 2.38 | | |
| VIR North | 16 / 36 | 2.25 | | |
| VIR South | 16 / 37 | 2.31 | | South course |
| Virginia International Raceway | 15 / 36 | 2.40 | | |
| Virginia International Raceway | 16 / 36 | 2.25 | | |
| Willow Springs Raceway | 16 / 36 | 2.25 | | |
| Willow Springs Raceway | 15 / 37 | 2.47 | | |
