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Comparison Studio

Compare gear ratios and RPM vs speed charts side by side.

Overlay two ratio maps, compare shift spacing, and spot highway or top-speed tradeoffs without bouncing between tabs or screenshots.

A vs B at a Glance

Top Speed Delta
+11 MPH

Setup B versus Setup A

Cruise RPM Delta
-293 RPM

Top gear at 70 MPH

Final Drive Split
3.89 / 3.54

A versus B differential ratios

6 / 6 gears | Cruise compare at 70 MPH
See highway RPM, redline spread, and ratio spacing in one synchronized view.

Setup Switcher

Switch between setups to edit each one.

Baseline

Setup A

Baseline

Primary setup
Setup

Transmission, final drive, tires, and drivetrain in one place.

Gears

6

Final Drive

3.89

Redline

8,000

Tire

275/35R20

1st
2nd
3rd
4th
5th
6th
Rev
8,000
70 MPH
275/35R20 - 27.6 in diameter - 731 rev/mi

Gear ratios apply to the rear axle. The opposite axle freewheels.

Overlay View

RPM vs Speed Comparison

Watch the two maps overlap so highway RPM, redline spread, and ratio spacing become obvious at a glance.

A top speed 208 MPH | B top speed 219 MPH

Swipe for the full comparison chart.A 208 | B 219
Gear-by-Gear Delta
1

Gear 1

Ratio spread and max-speed delta

Delta

-6 MPH

Ratio A

3.310

Ratio B

3.827

Max A

51 MPH

Max B

45 MPH

2

Gear 2

Ratio spread and max-speed delta

Delta

-13 MPH

Ratio A

1.950

Ratio B

2.360

Max A

87 MPH

Max B

74 MPH

3

Gear 3

Ratio spread and max-speed delta

Delta

-17 MPH

Ratio A

1.410

Ratio B

1.685

Max A

120 MPH

Max B

103 MPH

4

Gear 4

Ratio spread and max-speed delta

Delta

-17 MPH

Ratio A

1.130

Ratio B

1.312

Max A

149 MPH

Max B

132 MPH

5

Gear 5

Ratio spread and max-speed delta

Delta

-4 MPH

Ratio A

0.950

Ratio B

1.000

Max A

178 MPH

Max B

174 MPH

6

Gear 6

Ratio spread and max-speed delta

Delta

+11 MPH

Ratio A

0.810

Ratio B

0.793

Max A

208 MPH

Max B

219 MPH

Top Speed A: 208 MPHTop Speed B: 219 MPH