Shadow conspiracy penumbra jones mid seat series 6the shadow conspiracy penumbra series 6 is the signature model of top bmx pro trey jones its compatible with all pivotal type seatposts and its mid shape offers a bit more support than the standard slim type that generally comes fitted with bmx bikes its covered with a tough and durable canvas with a bold dr pepper style design features cover canvas padding mid trey jones signature modelbuyshadow conspiracy componentsfrom chain reactio