Originally Posted by
kracksmith
You may not know it but I do appreciate your replies as always, every bit helps and I will absorb it and just make a decision at the end whether it's a bad one or could be a good one.
I do understand I would never keep up with a emoto by having a ebike. They will beat me in any which way I build my ebike. I still don't know the durability of my build yet as the most I ever went was just 20 miles on a group ride. In this 20miles I actually did well, with PAS and riding with a slower crowd, I still had 80% at the 10miles mark. There was a charging station so I only used 20% back as well, this is with my lousy 8ah. With the new 21ah plus 8ah, i'm estimating 50 miles with no PAS, with PAS much more. Riding with sur ron guys their capacity is 30-40ah and at 72v, so not expecting to keep up, but distance wise i should be able to get to those same places at a slower ride.
I am speaking from experience. I have the bike you want. It's a titanium fat bike with a 52 volt 49 ah battery (1080 watt nominal motor). I can sustain 28 mph with the bike on fairly level roads. Throw in a longer climb of 6% and I will overheat and fry the motor in about 8-10 minutes. I can sustain 20 mph with short grades up to about 10-12% with a light load. I would suggest that you go play with Grin's simulator to get a much better grip on reality.
Motor Simulator - Tools (ebikes.ca) Their simulator is surprisingly accurate.
My experience: I have a $6,500 do it yourself e bike that screams badass. Whenever these total asshats want to insist that I am on a motorcycle I just want to throw them into the nearest dumpster because this bike, for all its capabilities, frustratingly is still a GD bicycle with all the faults of a GD bicycle meant to ride no more than 18-22 mph on pavement and gravel roads. I am much more tense at 28 mph and very tense at 35 mph. My bike is not a road bike, it's a rough off-road bike with deafening tire noise above 20 mph on pavement.
I can pull about 75-80% from the capacity from my batteries, not 90%, due to sag and age, around 2,000Whr. At 28 mph on good roads and fairly level, my mileage is around 37Whr per mile. At 22 mph my mileage is about 27Whr per mile. At 20mph my mileage is about 22Whr per mile. At 18 mph my mileage is about 17Whr per mile. The best I do with this bike is around 12-13mph at 11Whr per mile. The worst mileage is heavy snow at 5 mph with 3 psi tire pressure ~ 55Whr per mile. It's capable, so it's a heavy bike with high windage and high rolling resistance tires. My mileage at heavy touring load is about 5Whr
pr mile worse.
Those are the numbers I live with every day. I can improve on them about 5Whr per mile with narrower 2.5" low rolling resistance tires, instead of 4.8" width heavy high rolling resistance tires. I currently am running Maxxis Minion 4.8" tires, essentially a 31" tall dump truck tire.
I pedal all the time, can't stand using throttle. You are quoting me numbers that are consistent with lower speeds under 20 mph average to get the mileage you stated above with your 8ahr battery. Do you really need 30 mph. The cheapest way to get that is a Sir Ron dirtbike.