TotGuard Electric Bike for Adults, 27.5" Electric Bike 500W Ebike 21.6MPH Adult Electric Bicycles Electric Mountain Bike,48V 499WH Removable Lithium Battery,21-Speed Gears,Lockable Suspension Fork

This is not my first ebike from this manufacturer. The fact that I bought the same exact bike 2 years later should tell you that it's an excellent product. Pretty much bulletproof. But, as it's the second one, I did insist on some upgrades right out of the box that I would FIRMLY recommend. Let's talk about it. BUY PLENTY OF FULLY METALLIC BRAKE PADS. AS IN 6 PAIRS. It's just as important if not more so, to be able to stop as it is to be able to ride. THORN RESISTANT INNER TUBES. Keep the stocks as emergency spares. Same goes for the tires. REPLACE THE STOCK TIRES WITH SCHWALBE TIRES. Just trust me, keep the stocks as spares, they're not terrible. BIG COMFORTABLE SADDLE. Don't skimp on the saddle, the stock one is ok but it's about comfort so you can ride longer and further. STEM RISER NECESSARY. The stock stem is very short. Very short. And last but not least at all, HIGH GRADE FIREARM LUBRICANT FOR THE BEARINGS AND MOVING PARTS. You'll get thousands more miles by adding a professional grade metal conditioner. That being said, you will end up with one of the most formidable, long lasting, quality made and reliable ebikes around. Here's what I have been through with my first T-276: ran it into a FedEx truck at medium speed; had a head-on collision with another bike at full speed; hit a sidewalk curb at full speed and broke my humerus in 3 places; and got hit standing still by another ebikes doing around 16 mph (that broke my headlight). And to this day, that original bike is running flawlessly with over 3000 miles on it, has gone through 2 sets of tires, and the only thing keeping it from being in perfect shape is a very slight and imperceptible warp to the front tire from hitting that curb. Otherwise, no worse for wear, literally. Oh, I did have to replace the charger but no biggie. I just wanted a new one. I remember searching Amazon trying to find an ebikes that would not be a lemon or a toy. How would I know where to start? It's exhausting. Take my advice and make the small upgrades, and rest assured that you made the best decision: these bikes are golden.

Worth the price, took the risk to buy this e-bike considering its announced specs are way better in comparison to others in the same price range. Its throttle only mode and pedal assistance modes are well designed, no hiccups or sudden/unexpected startles/accelerations. It is gentle when needed but may be more aggressive, though still safe, if you go full throttle. It came around 90% assembled, and was relatively easy to finish it, took me less than an hour to do it although the instructions aren't that clear. I may be biased because a year ago I had to assemble a bike that was like 50% assembled. Brakes were perfect aligned, no adjustments were required. Please note that 2 sets of nuts&bolts were missing (1 for the kickstand and 1 for the front chain guard/guide). It fitted me well (6ft2/200lbs), a good choice both for keeping you fit/healthy as well as for the days you are feeling tired or are in a hurry and don't want to get (much) sweat. Commuted on it for a week, 90% of the time at 20ish mph cruising speed some times throttling only, odometer close to 20 miles now. Battery is removable and had no issues with it or the charger. As this is my first e-bike, once assembled I would take a quick ride just to test-drive it. I was expecting to do this for no more than 5 minutes, since it was a cold night outside and I wasn't feeling like changing my clothes just for that, turns out I rode it for like half an hour throughout the neighborhood as it provided me such a nice first e-ride experience. Also rode it with the engine turned off, bicycle is not heavy at all. Actually I would add a few more gears to it, since even the hardest one was still easy. Maybe this is the standard design for safety, so you don't go too fast. Though I am used to have this issue with most bikes. I would definitely buy it again based on my first week commuting on it, and see that soon e-bikes will be the standard given how practical it is. Will update this comment in a few weeks.

Instructions were not helpful so I had to turn to Youtube videos for finer details. Even then, I am not sure that I assembled it 100% correctly. The front quick-release wheel was a little confusing to put on and tighten. Later while riding the quick release sprang apart and shot the securing nut into another dimension so I had to struggle the bike and wheel home. Luckily, my local bike shop had a replacement quick release spindle that got me settled, but I've read that disc brakes tend to make this nut loosen over time. If there's a dead battery, the bike is still quite usable and the inert motor doesn't work against you. It bears saying that a seat replacement is a pretty good upgrade to plan on and adding some side mirrors will be great too. But for bang-for-the-buck, loving it so far!

Blke itself is OK, but electrical componet starting with battery is defective. I tested charger which states it puts out 54.6V and mine trsts output of 54.7V which appears to be fine. I charged first time 5 hours which is what very rudimentary instructions state for first time charge. Battery has a guage which doesn't list any charge and nothing works, not bike or lights or horn or screen for bike functions. I tested bike battery at positive and negative screws [terminals] and no reading of any volts. Don't know about rest of electrical components until battery is replaced.