Jen and I did a great 30-mile loop on the tandem. Just your typical peninsula ride up foothill, sand hill to portola, back down alpine and arastradero. Super nice weather and tons of friendly bikers out -- we saw a couple w/ guy in rear wearing old-school (blue and yellow) Nor-Cal BF kit headed north on Portola Valley Road as we were stopped on the southbound side. Who was it??