A-Arm 10.5in Screw-in B/J Slotted Bearing 20dg

The JOES Racing Products A-Arm 10.5in Screw-in B/J Slotted Bearing 20dg is a precision tubular control arm engineered for high-performance suspension geometry in motorsport and off-road applications. This upper control arm features a 10.5-inch length with a 20-degree geometry specification and employs a screw-in ball joint design for simplified maintenance and component replacement without full arm removal. The slotted bearing configuration provides controlled wear characteristics and precise alignment adjustability—critical requirements in competitive racing and serious off-road recovery scenarios where suspension geometry directly impacts handling dynamics and load distribution.

Construction utilizes steel tubing with a black powder-coat finish, delivering corrosion resistance across variable weather conditions and harsh field environments. The 20-degree specification optimizes the suspension's kinematic response for vehicles requiring aggressive approach angles and articulation depth. Screw-in ball joint attachment eliminates the need for pressing operations, reducing downtime during setup adjustments, inspections, or field repairs. The slotted bearing design accommodates fine-tuning of suspension geometry without arm replacement, a practical advantage during vehicle shakedown or mid-season adjustments in competitive applications.

This component is engineered for 4x4 rock crawling, off-road racing platforms, and motorsport competitors who demand repeatable suspension performance and field-serviceable design. Users operating in remote terrain or endurance events appreciate the screw-in ball joint approach—it reduces specialized tooling requirements and enables suspension maintenance at the trailhead or pit area. The 10.5-inch arm length and 20-degree geometry work in concert with compatible suspension components to establish precise bump steer characteristics and maximize articulation on uneven terrain while maintaining predictable on-road stability during transport.