Instruct: Classify Amazon reviews into positive or negative sentiment
Query: They bend. All the time.

Looking at these kingpins? Chances are, yours bent. It's a well-known flaw that the kingpins on Traxxas 2WDs bend all day long. So don't just get more; they'll bend too! What you really need are aluminum caster blocks,Traxxas 3632A Aluminum Caster Blocks Anodized - Blue. They've done the trick for me and countless others. Nice thing is, they come with screw-in kingpins so won't have to fiddle around with annoying e-clips ever again.