This RC-scale pendulum wheel axle weight is built to add low-mounted mass at each wheel, which helps traction and stability during slow rock crawling. The tapered brass pendulum concentrates mass toward the bottom, while the bearing and Delrin collar allow the weight to swing freely through steering and suspension travel.
Fit and function notes: the pendulum plus 21mm hex assembly installs on the outer drive portal to keep chassis centre of gravity low, the 21mm widened hex increases wheel offset versus the original by 16mm, and a single pendulum plus hex measures 136 grams. Wheels must have an inner diameter of 45mm and a wheel thread hole of 5mm for correct mounting.
The package contains the hardware required for installation: 21mm hex adapter (2 pcs), stainless steel pin 2x10 (2 pcs), 5mm spring steel shims (2 pcs), 5mm metal washers (2 pcs), and 19mm stainless steel hex socket screws (2 pcs), plus a central bearing with Delrin collar.
Choose this pendulum weight when you need a lower CG and extra wheel bite on slow, steep or uneven terrain; check wheel inner diameter and thread size before fitting.
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