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BFGoodrich Baja T/A KR3-SR – Ultra4 Class 4400

The latest iteration of the legendary BFGoodrich Baja T/A the KR3-SR (Soft Rock) is designed to tackle the rocks, dry lake beds, and valleys of Johnson Valley, CA home of the legendary Ultra4 King of Hammers each February.  The KR3-SR takes rock climbing, steering response and puncture resistance to the next level for unlimited Ultra4 Class 4400 rock racing racing vehicles.  Using the race wining Baja T/A KR3 as the foundation the KR3-SR evolves with supple sidewalls for climbing and an aggressive tread pattern to take all the desert can throw at it.

Tested and raced by multi-time KOH winner Jason Scherer the KR3-SR won KOH overall in 2018, 19, and in 21 with Randy Slawson/Bomber Fabrication.

-44% increase in number of biting edges vs 39″ KR2

-1.25 inches taller than KR2, 1 inch narrower

-More progressive traction, more predictable lateral grip vs KR2

-Significantly improved comfort (and speed) through bumpy terrain

– Full-color BFGoodrich sidewall applique

– KR3-SR is a non-DOT off-road competition tire not legal for highway use; including chase vehicles.  It is a dedicated race tire designed for off-road surfaces only.

Winner 2018 Ultra4 King of Hammers – Jason Scherer
Winner 2019 Ultra4 King of Hammers – Jason Scherer
Winner 2021 Ultra4 King of Hammers – Randy Slawson

MSPN                SIZE                              MODEL
27949               40×12.5R17               Baja T/A KR3-SR       Soft Rock for Ultra4 unlimited class 4400

Designed, engineered, and Made in the USA.

Available through Jackson Motorsports Group (JMG) at 1.800.RACE.BFG or Off Road Warehouse (ORW) 


Race Tire Distributors

DOT Approved Tires

BFGoodrich Tires
BFGoodrich Dealer Locator >

Non-DOT Off Road Racing

Jackson Motorsports Group (JMG)
Greenville, SC
Off Road Warehouse (ORW)