The F-15RS Fat tire fold bike has been great!

I got mine on Feb of2020 and shipping was prompt.
I would give the packaging dept a B in that the bike arrived undamaged, but a bit more padding could be used for hub/axle protection. Understand I have much experience in shipping delicate items in foam and crates … and this is a good rating from myself! It did arrive double boxed and have an engineered method of packing, but outside box was in poor shape after only a few hundred miles of travel!

Onto the fun part …
Assembly was very easy for me … as a skilled mechanic. It comes with tools, but still needs an adjustable wrench to torque pedal. The solid shipping axle on frame was a great help in keeping things aligned for an easy mounting of front wheel, along with disk brake.
I now have about 200 miles of riding with about 20% of that on hill climbing. It will do a 10% grade no problem … but I try to assist with peddles and use level 3 or less to protect the hub. I just want it to last and figure it is not designed for 1000W continuous hill climbs. I did just blow the 20A fuse on battery bank trying to climb a 10% grade with 30 lbs cargo and 190 lbs rider weight. I was using the throttle only since the load was to unstable to peddle. I think even this would have been ok if I had just slowly accelerated.
It is important to remember that this is an “entry level e-bike” in that all controls are very primitive methods and they are very course and hard not to jerk or lose balance as you learn to “anticipate the power ride”. It seems like on off switch at times. When you are on level 5 and move the peddle just a part turn, that happens to be were the sensor aligns to the crank mag, you find out how this thing can pop a wheely and throw you off the bike or run over the other foot on the ground. This is typical for this type of ebike at an entry level. I am not complaining, but just warning to start on level 1-3 for learning.

I have verified that the 21 ah battery is for real! It recharges from dead using about 1.05 Kwhr via killawatt meter. This means about 1050/48 or 21.8 Ahr of charge less charge losses (maybe 5-10%)
Assuming the dead battery was about 10% capacity (not good to go below that …even on lithium) that gives about 21ah /_ 5% for my test! This test is important to me because I plan to use the battery bank for a mini off grid PV system. It only makes sense to have a second usage for a $500 component.
I am torn between using two of these bats for a 2kw inverter or a single on a 600w inverter. It is important to remember that absolute max current is 20A … and one bat can only give 1000W max power. (maybe 750W continuous). This system with one battery is the same a 2 golf cart lead acid bats that would weigh over 120 pounds! The draw back of a 48V inverter is the high standby power of 14-24 watts. Look for progress on this system and PV charging here on updates and for koisolar or kiophish tags.

I run about 10psi and get about 50 miles per charge with about 2000ft elev change and light assist by peddles most of the time, but more effort on peddles going up hills. My worst range was about 40 miles in a 20mph headwind and 3000ft elev change for a round trip using less peddling. I have learned that it is more comfortable to ride a bit slower at 15mph and the range goes up on flat ride to more like 75miles.

I live around some dunes and sandy beaches. I took this on the ocean beach on packed sand … and it was a blast. I didn’t go very far since I know sand and salt water are not so good for drive train or hub.
I was able to keep it clean … and even go on a loose dune for about 30ft or more if you go down hill. The bike trial I ride one frequently has dune sand for 10 to 20ft stretches. I can run over a 1-2ft high pile and stay stable on up to about 3 inches deep. Try that on a 2 inch mountain bike tire!

I have noticed … as many others… that the bafang hub starts to make more noise after about 100miles when it loosens up. It has stayed the same for another 100 miles so far.

The fold feature is really handy for an e-bike that is too big/heavy for most bike racks. I can get two of these in a small Honda CRV wagon in the hidden rear cargo area. This is even more easy than lifting it up into my pickup bed … when it has room.

This is my first fold bike … and fat tire bike …and e-bike and second bike w/ hydraulic brakes! They are all a blast!

Very powerful hill climbing ability box was torn and a piece to steer column missing but not problem free shipping saved hundreds. Tires go flat easily but are top rated tires. If front shock was better I’d give it five stars.

I bought two of these. Totally awesome and great performance, they arrived well packed and in perfect condition. Easy and quick assembly too.

Ordered Sunday arrived Wednesday! Assembly was quick and easy.. has abundant power, breaks are wonderful.. stops on a dime!
Yep very good Ebike!

OMG, amazing 1000 Watt fat tire ebike, and yes everything we were looking for and more! First, the bikes arrived in 3 days mostly assembled, simply removed from box, attached handlebars, pedals, front wheel and front fender, approximately 20 minutes assembly per bike from unpacking to road-ready. Initial charge on battery took about 5 hours and we were cruising!

This is a high performance, quality ride with decent components, aluminum frame, handlebars, front suspension forks, seat bar, pedals & rear rack. Responsive, stop-on-a-dime F&R disc brakes, perfectly pre-tuned, super smooth Shimano 7 speed gears & derailleur.

I’ve gone 146 KM since receiving (90 miles, the display is in KM, not miles) with instant acceleration and exhilaration, reached speeds of 52 KMPH (downhill pedal assist) one BIG surprise is the pedal assist has 9 modes (yes nine, not 5!) which is insane. Love the stealthy look of the matte black frame, 4″ fat tire stance and killer ride!

Like I said, we did a lot of research, comparison, and looking before making a decision to purchase these beautiful machines, our friends are blown-away and now planning to buy and join us in the fun, exhilaration and nonstop endorphin rush.

We absolutely love the bikes!… Do your own research, compare features, components, price & warranty, try to find a better 1000W, 48V fat tire ebike for the money.

Good riding to all! Steve- California