Help Me Choose: 20" (Stock) or Downsize to 17" w/ BFG KO2?

What should I do?

  • Stock 20"x9" w/ BFG KO2 275/60/20

    Votes: 1 25.0%
  • Mamba M14 17"x9" w/ BFG KO2 285/70/17

    Votes: 2 50.0%
  • Something Else

    Votes: 1 25.0%

  • Total voters
    4

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AzRamLover

Senior Member
Joined
Oct 29, 2014
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Ram Year
2014
Engine
Hemi 5.7
Would appreciate feedback/opinions from folks on these couple of options.

Option 1 (Stock Wheels 20"x9" w/ BFG KO2 275/60/20)

Cost:
$259.15 / tire x 4 tires = $1,036.60
+ mounting, balancing, environmental fees

Net unsprung weight change: +15 lbs per corner (all tires; no wheel change)

Pros: cheapest, best on road handling, 33" tire, no speedometer difference

Cons: much heavier than stock


Option 2 (Mamba M14 Wheels 17"x9" w/ BFG KO2 285/70/17)

Cost:
$162 / wheel x 4 wheels = $648
$246.13 / tire x 4 tires = $984.52
$40 / wheel x 4 TMPS = $160
+ mounting, balancing, environmental fees
- resale of 20" wheels, center caps, TMPS sensors (est. $300)
Total Cost = $1,492.52 + mounting, balancing, environmental fees

Net unsprung weight change = wheel (23# Mamba - 30# OEM) + tire (58# BFG - 40# GY Wrangler Stock) = -7 + 18 = +11 lbs per corner

Pros: increased sidewall, less unsprung mass gain, overall diameter change <1% (decrease from 33" overall to 32.7" overall)

Cons: ground clearance reduced 0.15", potentially reduced handling capability, cost significantly higher if 20" wheel resale unsuccessful, cost is 40% higher even if 20" wheel resale is successful, no potential for BBKs (not that they even exist) w/ smaller wheels.

Option 3 - Other Ideas?
 

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