But today's great weather will carry over to Friday (26 degrees, sunny), so I'm thinking a Tama River ride, 55km, easy but fast. Start 11:00 a.m. from Grand Hyatt in Roppongi Hills, back by 4:00. (Alternate rendezvous points: Wendy's at Ebisu @ 11:30, intersection of Kan-nana and Komazawa dori @ 11:45, bridge at Futago Tamagawa @ noon, Gas Bashi @ 12:20-30. Jonan Jima Seaside Park 1:30. Long break at the park. This assuming no flats or other delays. Call or email me if one of these applies to you).