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02A, 02J, and 02C Race Six Speed

The following table will aid you in chosing the best gear combination for your application. These are our most common combinations; however, other gear combinations and final drive ratios are available. Please contact your Eurospec dealer to request alternative gear set combinations.

ALL CALCULATIONS BASED ON 25" DIAMETER TIRE

SIX SPEED RACE SHORT (.85 6th gear/3.38 FINAL)

GEAR RATIO RPM SPEED MPH DROP RPM
1 2.3 7500 70  
2 1.8 7500 89 1630
3 1.45 7500 110 1458
4 1.15 7500 139 1552
5 0.96 7500 167 1239
6 0.85 7500 188 859
6th Cruising Speed 2590 rpm 65 mph  

SIX SPEED RACE SHORT (.85 6th gear/3.64 FINAL)

GEAR RATIO RPM SPEED MPH DROP RPM
1 2.3 7500 65  
2 1.8 7500 82 1630
3 1.45 7500 102 1458
4 1.15 7500 129 1552
5 0.96 7500 154 1239
6 0.85 7500 174 859
6th Cruising Speed 2790 rpm 65 mph  

SIX SPEED RACE SHORT (.85 6th gear/3.94 FINAL)

GEAR RATIO RPM SPEED MPH DROP RPM
1 2.3 7500 60  
2 1.8 7500 76 1630
3 1.45 7500 95 1458
4 1.15 7500 119 1552
5 0.96 7500 143 1239
6 0.85 7500 162 859
6th Cruising Speed 3020 rpm 65 mph  

SIX SPEED RACE SHORT (.85 6th gear/4.24 FINAL)

GEAR RATIO RPM SPEED MPH DROP RPM
1 2.3 7500 56  
2 1.8 7500 71 1630
3 1.45 7500 88 1458
4 1.15 7500 111 1552
5 0.96 7500 133 1239
6 0.85 7500 150 859
6th Cruising Speed 3250 rpm 65 mph  

SIX SPEED RACE Long (.75 6th gear/3.38 FINAL)

GEAR RATIO RPM SPEED MPH DROP RPM
1 2.3 7500 70  
2 1.8 7500 89 1630
3 1.45 7500 110 1458
4 1.15 7500 139 1552
5 0.89 7500 180 1696
6 0.75 7500 213 1180
6th Cruising Speed 2285 rpm 65 mph  

SIX SPEED RACE LONG (.75 6th gear/3.66 FINAL)

GEAR RATIO RPM SPEED MPH DROP RPM
1 2.3 7500 65  
2 1.8 7500 82 1630
3 1.45 7500 102 1458
4 1.15 7500 129 1552
5 0.89 7500 166 1696
6 0.75 7500 197 1180
6th Cruising Speed 2460 rpm 65 mph  

SIX SPEED RACE LONG (.75 6th gear/3.94 FINAL)

GEAR RATIO RPM SPEED MPH DROP RPM
1 2.3 7500 60  
2 1.8 7500 76 1630
3 1.45 7500 95 1458
4 1.15 7500 119 1552
5 0.89 7500 154 1696
6 0.75 7500 183 1180
6th Cruising Speed 2660 rpm 65 mph  

SIX SPEED RACE LONG (.75 6th gear/4.24 FINAL)

GEAR RATIO RPM SPEED MPH DROP RPM
1 2.3 7500 56  
2 1.8 7500 71 1630
3 1.45 7500 88 1458
4 1.15 7500 111 1552
5 0.89 7500 143 1696
6 0.75 7500 170 1180
6th Cruising Speed 2865 rpm 65 mph