The other area of improvement comes in the form of larger inner bearings. The stock inner bearings are a mere 20x27x4mm. The oversized bearings in these carriers are gigantic 20x32x7mm bearings! That's 5mm larger on the diameter and 3mm on the width! That equates to a dynamic load rating that is nearly 300% higher than the stock bearing while the static load rating is over 300% higher! The Oversized Rear Axle Carriers are molded in black and backed by RPM's limited lifetime warranty against breakage.
Tech Notes: RPM Oversized Rear Axle Carriers replace stock Traxxas #7752. Each package is sold as a pair (one left and one right) and includes two inner oversized bearings (one for each side). Outer bearings are stock Traxxas bearings (#5106 or #5106A) and are not included in this kit.