Welcome to CAP Bros MotorSports, LLC!
CAP Bros MotorSports is home of the 5 spoke Lightweight Rim Center and 9bolthubs.com
Pete Petznick is the owner and has began Antique Tractor pulling in the mid 80's and has been around the all aspects of the sport since the late 70's.  The company sprang up from requests from fellow pullers to purchase Lightweight Rim Centers that Pete had created for his own pulling tractor, a Massey Harris 101 Super.   These lighter than stock wheel centers offer a tremendous weight savings over Stamped Steel Centers or Factory Cast Wheel Centers and are much safer that a cut-out design.  

October of 2012 brought forth another innovation with the debut of a Removable Axle Hub.  A system that is LIGHT Weight, yet STRONG enough to endure the TORQUE demands of Tractor Pulling.  Check out 9bolthubs.com for the various Hubs available for all venues of Tractor Pulling, whether it be a stock Antique or 2500 HP Diesel Smoker!

Here are some of the Product lines that CAP Bros MotorSports offers:

• ​Lightweight Removable Axle Hubs
• Adapter Plates
• Lightweight Rim Centers 

• Lightweight Steel Rim Assemblies
• Billet Camshaft Blanks - with Helical cut Gear!
• Chromoly Tube Axles
  
• Rear Axle housing Assemblies