This is a soft type spring set compared to OP440.
TAMIYA(TAMIYA) OP.1252 Brushless Motor 01 16T 54252 (Hop-Up Options No.1252)
TAMIYA Hop-up Options No.571 TRF Damper Set of 4 (Fusso Coat) #53571
NEW Tamiya Hop-Up Options No. 1692 OP.1692 TRF419 E-Parts Rear Upright 54692
NEW Tamiya Hop-Up Options No. 1978 OP. 1978 CC-02 Reinforced Rear Drive Shaft
TAMIYA HOP-UP OPTIONS OP-475 Medium Narrow Dish Wheel White
Tamiya HOP-UP Options OP.944 3x50 Hard T Buckle Shaft (2)
