KO Propo EX-NEXT Master Unit Upgrade Set. This optional ...
ional set is intended for those who already have a "Kustomize it Yourself" (KIY) CONCEPT radio, you can upgrade to the latest EX-NEXT by replacing it with this master unit. NOTE: Can not use ...
& RM, 321B Low Speed Needle, with an included o-ring. The low speed needle is used to regulate the fuel flow in the lower throttle range. This product was added to our ...
R/C Large Mid Needle O-Rings for RM.1, RM, 321B, S03 and R03 engines. The Mid Needle requires the use of one large and one small o-ring (PTK-2534) for operation. This product was ...