Top of Second - 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.

Second Gear First

Quick Read

Compare the headline differences before diving into the chart.

A vs B

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.

ImperialMetric

Setup Switcher

Edit one setup at a time on mobile.

Baseline

Setup A

Baseline

Primary setup

Setup Studio

Dial In Your Gear Stack

Shape the transmission, final drive, tire size, and drivetrain assumptions in one place.

Gears

Final Drive

3.89

Redline

8,000

Tire

275/35R20

Transmission Presets

Gear Ratios

1st

2nd

3rd

4th

5th

6th

Rev

Redline RPM8,000

Final Drive (Axle) Ratio

Transmission Type

Transfer Case

Cruising Speed70 MPH

Tire Size

275/35R20 - 27.6 in diameter - 731 rev/mi

Width (mm)

Aspect %

Wheel (in)

Drive

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

Setup A

Baseline

Primary setup

Setup Studio

Dial In Your Gear Stack

Shape the transmission, final drive, tire size, and drivetrain assumptions in one place.

Gears

Final Drive

3.89

Redline

8,000

Tire

275/35R20

Transmission Presets

Gear Ratios

1st

2nd

3rd

4th

5th

6th

Rev

Redline RPM8,000

Final Drive (Axle) Ratio

Transmission Type

Transfer Case

Cruising Speed70 MPH

Tire Size

275/35R20 - 27.6 in diameter - 731 rev/mi

Width (mm)

Aspect %

Wheel (in)

Drive

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

Setup B

Challenger

Comparison setup

Setup Studio

Dial In Your Gear Stack

Shape the transmission, final drive, tire size, and drivetrain assumptions in one place.

Gears

Final Drive

3.54

Redline

7,500

Tire

275/35R20

Transmission Presets

Gear Ratios

1st

2nd

3rd

4th

5th

6th

Rev

Redline RPM7,500

Final Drive (Axle) Ratio

Transmission Type

Transfer Case

Cruising Speed70 MPH

Tire Size

275/35R20 - 27.6 in diameter - 731 rev/mi

Width (mm)

Aspect %

Wheel (in)

Drive

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

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

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

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

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

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

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

Gear	Ratio A	Ratio B	Max A	Max B	Delta
1	3.310	3.827	51 MPH	45 MPH	-6
2	1.950	2.360	87 MPH	74 MPH	-13
3	1.410	1.685	120 MPH	103 MPH	-17
4	1.130	1.312	149 MPH	132 MPH	-17
5	0.950	1.000	178 MPH	174 MPH	-4
6	0.810	0.793	208 MPH	219 MPH	+11

Top Speed A: 208 MPHTop Speed B: 219 MPH