I've got essentially that same juicer model - think maybe I got it at Target? works good, fairly easy to clean. When the citrus are in season, I'll juice like crazy. Love fresh orange and grapefruit juice. Have had mine for maybe 2 years now, and it's still running strong.
Two young orange trees (good ones) and one sweet lime tree in my backyard, in a year or two we'll have tons!
the 50 miles thing doesn't concern me nearly so much as the 21 May thing... will be seriously warm by then. But I might be on board as something to work towards.
Any idea what sort of pace you'll be keeping? I have a decent older road bike, and do quite a bit of commuter riding... but not into the spandex thing.
Got to talking with my wife's dad recently about how back in the day he used to do 200km (around 130 miles) in the hills around the south bay area... whew!