Feature 1) Brass portal knuckle cover adds 55g a pair, to improve climb performace greater stability and lower CG 2) Make of high quality brass material (with black coating can avoid oxidation) 3) Includes SAMIX scale brake rotor & caliper for realistic looking crawler (the brake rotor suitable for STD TRX-4 wheel) 4) More rigid and increased durability 5) Direct fit on TRX-4 front & rear std knuckle and SAMIX alum. or brass option knuckle
