Seismic 155mm truck with Stable-Turn 30-degree geometry. Comes assembled with red Light springs. Recommended for: Rear of pool/park boards. Rear of performance longboards. Front & rear of vert boards. Front & rear of downhill boards. Price is for a single truck; order TWO TRUCKS for one skateboard. TRK155/30$32.25Custom spring install: StandardMax-Light (+10.00)Super-Light (+10.00)Extra-Light (+10.00)Medium (+10.00)Heavy (+10.00)Extra-Heavy (+10.00)Super-Heavy (+10.00)