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MFactory Pro Series Close Ratio Gear Drag Set - K-series

MFactory Pro Series Close Ratio Gear Drag Set - K-series


Regular price $1,889.95
Sale price $1,889.95
This is an estimated ship date once your order is placed from JHPUSA. Ship dates do not include weekends and holidays.
Achieve the ultimate in acceleration with the MFactory Close Ratio Gears. After installing our gears, you will experience a phenomenal increase in acceleration despite a lower top speed.

Diamond Cut to exacting tolerances from Forged High-Nickel-Chromium-Molybdenum Steel. Perfect fitment & finish ensures hassle-free installation & maintenance, each and every time.

Designed using leading-edge Solidworks 3D CAD & Cosmos FEA software. Advanced Gear Geometry minimizes parasitic drivetrain losses. Race transmissions built with MFactory components transfer, on average, 1-2% more power to the ground over MFactory competitors!


  • Made from imported Japanese SAE 8620 and 4320 Steel
  • Forged, Double Tempered and Super Sub-Zero treated for unsurpassed toughness
  • Advanced Shot Peening technology increases surface hardness
  • Advanced gear geometry designed using industry-leading software puts more power to the ground

Gear ratios

  • 1st - 2.313
  • 2nd - 1.650
  • 3rd - 1.304
  • 4th - 1.080

***Special Order - 1-3 weeks to bring in***


We realize that returns and exchanges are a part of the purchasing process and we do our best to make it as easy as possible. If you are not 100% satisfied with your purchase, you can return your order to JHPUSA within 14 DAYS from the invoice date.

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