Wooders anything from around 18-20kg onwards is recommended for decent crawlers with anything over 2.2 tyres. Also if you've got a crawler with heaps of metal drag links / steering parts you'd want the best one possible as there's no give. I use a Hitec 24kg Titanium Digital. I went through cheaper 2 servo's before realising like anything in life, if you want decent quality, strength and something to last, you need to shell out the clams for it................
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Murchison Products Workshop
S27.32998 E152.97906
U85/86
111 Leitchs Rd
Brendale QLD
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