Great loop through the hills with very light traffic except for the I-5 connector. Road surface is good, although watch for gravel after rain storms. Gas up near Hollister, Coalinga or hit up the truck stops along the 5. 25 is a joy to ride. Almost no straight parts, nice curves and only local traffic, but allow 90 minutes from top to bottom unless you stop for pictures. Recent resurfacing work on 198 between Coalinga and 25 and look out for the tree full of bras near the summit. Route is VERY rural but very scenic. Bring your camera. Lots of pull out spots for pictures or water breaks in the summer.