About a mile and a half into my morning ride, as I mashed down hard on an uphill after a traffic light, I heard a loud crack. The spider had broken. I walked the bike back home and drove in, arriving late and tired. I'm hoping my bike shop will be able to fix it quickly, as rain is expected later this week and my backup bike lacks fenders. There is some concern that this spider may not be available in the US and it will not be practical to adapt a local one.
Paul