They're lightweight

Rob MacCachren Dodge body (#6833) or the Dakar body (#58044

RPM A-arms add an extra outboard shock mount that will give you that added edge under any conditions

The overall weight of your race car will be significantly reduced over the use of typical NiMh receiver packs

Hot Racing - Aluminum 100mm Piggyback Shocks w/ Adjustable Rebound Electric Motors 1/8 Scale They're lightweightFeatures: CNC machined 6061 T6 billet aluminum construction Double spring with Teflon guides Shock bodies are hard anodized Bleeder shock caps Threaded spring adjusters Piggyback reservoirs with adjustable rebound compression damping Specifications: Heavy duty 3. 5mm stainless steel shocks shaft for all types of competition