ViviACE01 Electric Bike for Adults, 26" x 4.0 Fat Tire Ebike, 1475W Peak Motor Torque Sensor Electric Mountain Bike, 25MPH Electric Bicycle with 48V 15AH Battery, Hydraulic Brake, UL 2849 Certified

[Updated Reviews Below] Hello, e-bike guy here. I’ve been with Vivi for 4 years now. This bike is my first fat tire bike. I’m pretty pleased by the way it performs and stuff like that. PS: I’ll be back in a month or two to update my review and give my final thoughts on it. ||||||||Build Quality | 9/10I can say the build of the bike is awesome, it’s strong, it looks good, looks evil and looks sturdy which it is. Only disappointment I have is the back rack, it’s nice that there is one, but no sides.Speed/MPH | 10/10The speed on the bike is awesome, it runs good, it takes off fast, and it’s quiet at full speed or any speed.Battery Life | 10/10The battery life is pretty insane for, good range. It took a few hours to kill the battery fully, which is good.Comfort | 8/10The seat is comfortable, the front suspension is awesome, I love it. Only issue I have is no rear suspension, you’ll feel every medium sized potholes or bumps. It’s only bad in the rear if you hit something such as a pothole. Otherwise, it rides good.Assembling | 10/10As a bike guy that’s owned e-bikes for many years, I have experience and had the bike put together within 20 minutes, didn’t need the book since it’s pretty self explanatory. But if you don’t know how, then I recommend reading the book.Some concerns I would consider people to know. It’s a fat tire bike, so if you’ve never rode one, you need to be aware of when you turn at any speed and when you lean left or right. Be careful, it’s a bigger and heavier bike, so act as if you’re riding something heavy and maintain your balance.The battery, it does weigh quite a bit, so be careful taking it out and be careful carrying.Lastly, I did notice it was tricky getting the battery out. Turn the key to the open position, hold the key there, use your other hand and push the button, the hand that’s pushing the button, you’d want to move a finger and pull the battery down, once it’s down a bit, remove your hand from the key and grab it.Overall rating: 5 StarsOpinion Rating: 4 StarsWill be back to update my review in a month or two.Wednesday, September 4th #2 UpdateBike is doing very well! I’ve noticed I had a flat dismorning and got it fixed. Since it’s a fat tire bike, the tire is harder to get it to fit in the rim perfect. You have to have a certain amount of air in the tire to fully get it back inside the rim. It took 30 minutes to figure it out. You don’t want it fully flat or fully inflated. I recommend taking it to a bike dealer to get it fixed if it ever happens. The fat tire does have a tube for those curious. Otherwise, the battery is pretty good, does really well and so does the bike.October 20th, 2024 review update | FINAL and LAST UpdateThis is my final update for the bike. It still performs and does really well from all the notes listed above. If you aren’t experienced within brake bleeding, take it to a bike shop since this bike is known at the bike shop I go to, it’s tricky to bleed the brake system. Quick tip, if you think you can run your brakes without the mineral oil the brakes take in order to have brakes, you’re wrong! You need mineral oil to have brakes. If your brake pads start squeaking a lot, you’re due for new brakes, it’s recommended to get a bleed job done too.I also turned off the speed limiter, with it on, it goes 20.0MPH, with it off, it goes 25.0MPH MAX. I can say, there’s no difference in this, I get about 5 miles less on my battery with full throttle with the speed limiter off. But otherwise, 5 miles isn’t a major difference, bike does overall well.December 2024 Review | I said the October one is my last one. But here’s a final one, I figured I’d add this. My bike now has 638 miles. Bike still works the exact same. It’s unbelievable how it still works the same.Thank you for taking the time and consideration to review my comment, I hope is enough information for you! Thank you - Logan | E-Bike Guy

Assembly was pretty straight forward; mount front wheel, turn steering stem forward, mount handle bars, mount seat, fenders, light, rack, pedals, etc. Included tools are okay for assembly, but I recommend getting a (stubby) 22mm combination wrench in case the rear axle ever needs removal. My question about what to do with washers on the front axle was answered by Vivi saying they go on the outside of the front fork rather than inside. This is a BIG bike so the rack on the back is also big! I did raise the handle bars with a steer tube extension and shorter stem with higher degree rise because I prefer a more upright riding position. I will also be changing seat and post to more cushioned versions as the stock seat is a bit too hard for me. I also added a small battery powered tail light on the seat post that I can reach while riding. The bike rides very similar to my mid drive mountain bike primarily because of the torque sensor which provides almost instant power when you pedal, even on an upgrade start. I also like the throttle on this bike for quick starts at intersections when beating traffic is an issue, but it’s location on the right grip takes some getting use to when making tight turns on singletrack trails. Speaking of turns, this bike has oversteer that also takes some getting use to; when making a turn, it wants to keep turning more. But easy to deal with once use to it. And while the thumb shifter is different from levers I’m use to, they also work fine once use to, and my gears shift accurately out of the box. I did remove the protective bar covering the derailleur so it wouldn’t catch on stuff. The hydraulic brakes are very welcome on a big bike this heavy! Tires give adequate grip on most surfaces, except ice which most tires have difficulty with(need studs for that). This ebike has a very strong motor and it climbs steep hills very well. I tried it on a couple 100 meter hills I would call 30 degrees, and in assist level 5 and lowest gear it took some effort but got up them alright. It will also go pretty fast if getting home quickly from the trailhead is necessary. For the price, this is a great deal for a quality ebike that has decent performance. Highly recommend!

I absolutely love my bike! Holds charge very well! It is big so you will probably need two people to assemble, I take my dog on runs with this bike and it’s big enough so he won’t pull me should he get distracted by a squirrel. I also carry my two kids in bike trailer behind and it works perfectly, it handles the extra weight very well! I feel safe riding and it has a modern sleek look. If you’re on the fence just go for it! I am Five two and can use it fairly easily.

Bike is fast and a great buy . It is heavy to carried if you want to bring your bike in your house , instead of the garage. Only issues is that I have to buy another one with smaller wheel the 4 . 0 tires will not fit on any carried on bus bike rack.

Great looking. Quick. Responsive. Easy to put together. Pulls kid in her kid cart behind the bike with ease, can't even feel that I'm pulling it. Goes through grass very easily. Exceeded our expectations. Oh, and a great price prob best bang for your buck on any ebike.