I was climbing the hill headed North on 213 out of Silverton. The speed limit is 25 climbing up the hill. I was in a large heavy van. Once I crested the hill and started down the other side a big van like this one would gain speed. I realized this, looked down at my speedometer and was doing 40mph. I thought that area was 35mph. I touched the brake to slow down and then looked up only to see a motorcycle cop on my left with a radar gun on me. The same stretch of road going south into Silverton is 35mph. Motorcycle cops are new to Silverton so watch this one.