Hello peoples, I'm trying to figure out which ebike would best suit my needs. I want to mention before anything else, i am planning on buying multiple batteries for this commute, not expecting an ebike to get me there on a single charge and I don't really feel like stopping to charge along the way. The bikes I'm looking at currently are the Trek Crossrip+ (really wish they made a 520+), Smart Motion Pacer (if it's still available), cube touring hybrid pro 500 2018, IZIP E3 Moda, and others mostly mid drives. I've also mostly been looking at ebikes with bosch motors since I can't find any website that sells Brose battery packs, and since I need, or want, to carry more than one battery.. if i can't find extra batteries there's no real point in considering them.
What it needs to do :
1. Take me from home to a work location 140 miles away and back once a month.
2. Haul a euphonium (in a hardshell case) roughly 40lbs as well as clothes for a weekend. I have thought about attaching a bicycle trailer and using that to carry the euphonium and using regular panniers to carry the other stuff.
3. Be safe to ride at speed, and comfortable for a ~8 hr ride (i will probably stop along the way to stretch and eat) as well as handle rain well.
During the winter, I'm either going to drive or take a train, but during good weather I really want to work at getting back into shape, and bicycling i think is an enjoyable way of doing that. The furthest I've ever ridden on a bike is 67 miles one way (2016), stopping every hour for ten minutes to recoup a little. I averaged 14mph on that trip even with stopping to walk the bike up a very very steep hill and slowing down considerably as i neared my destination as it became a constant climb. That was with a cheap bike from Amazon, so I figure with a good ebike, i should be able to go 140 miles in one long day and with each trip I would expect it to become easier as I became more fit. I'm hoping to spend less than 3k on the bike, since bosch 500 watt batteries cost essentially 1k and I will probably need 3 total. That being said, currently the bike that has most of my attention is the Crossrip+ which sits at around 4.5k. The Riese & Müller bikes are awesome, but 6k for the Riese & Müller Charger GX Rohloff just feels out of my reach.
Thanks for any help