Some model kits are supplied with proprietary servo arms which arevery commonly 25t.With this gear, it is now possible to use such servo arms with JR PROPO servos (Which are all 23t)Bearing: upper/10pi, bottom/10piCompatible model: S8931+, S8935+, NX8921, NX8925, NXB8921, NXB8925, etc

Metal Gear E T25-1010 for S8935+

$21.99Price

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