AXIAL Capra 1.9 Unlimited Brass Front Knuckle Arms Heavy 14pc Set SCX3021X by GPM  [SCX3021X]

Brass knuckles tuned for technical rock crawling

This 14pc brass front knuckle arm set is an RC-scale upgrade made for AXIAL Capra 1.9 Unlimited chassis. The kit pairs brass outer portal housings with matching inner knuckle components and stainless steel fasteners to add measurable unsprung mass at each wheel, changing balance and tyre contact during low-speed rock-crawling moves. The notes below concentrate on fit, installation points, and tuning rather than promotional claims.

The brass housings add roughly 115g per wheel at the wheel end, which helps the tyre stay in contact over uneven terrain and can broaden effective steering and crawl angles when used with wheels whose inner bore is large enough to clear the 43mm outer pieces. As with any aftermarket accessory, check wheel bore and hub interfaces for compatibility before fitting.

Fit this kit when extra wheel-end mass is needed for slow-speed traction and consistent tyre contact on technical lines. Confirm wheel bore clearance and fastener fit, then retorque after a short break-in to verify secure installation.