Lego Technic Shock Absorber Spring Rate Guide - LEGO Technic, Mindstorms, Model Team and Scale Modeling - Eurobricks Forums
Self-locking Bricks Moc Building Blocks Technical 4 Colors Brick Shock Absorber 9.5l (hard Spring) Compatible With Lego - Model Building Kits - AliExpress
Technic Dampers - Pneumatic - LEGO® Technic Shock Absorber 6.5L Soft Spring - The shop Briques Passion
LEGO Technic - 6.5L Shock Absorber x 4 - Hard Spring - Yellow - New (731c04) | eBay