I'm glad it was something trivial in the end, but what a bummer. The ridge route and Glendora Mountain Rd were stupendous!
For those reading along, after climbing to the top of the 39, grabbing coffee at the Crystal Lake Cafe, and then heading back down, we took a turn onto the cutoff road to the Glendora Ridge Route - The Ridge Route is the perfect mix of tight turns, long sweepers, and serpentine runs along the San Gabriel mountain ridge from Glendora to Mt Baldy. It's breathtakingly beautiful - which, in a sense, is the most dangerous aspect... Far too easy to let one's attention be grabbed by the vistas to the right and to the left of you, practically as you round every corner.
We rode the ridge route both directions. From Glendora to Mt Baldy and then back to Glendora.
PasoDuc88 and I were laughing that the Ridge Route is significantly shorter coming back the other direction!
And then, just when you're sad because you think the ride is over - Glendora Mountain road to the bottom of the mountain.