750 W peak power meets 64 km freedom – ride further, faster, every day.
The Racer electric mountain bike blends a lightweight
carbon-steel chassis with a peak 750 W brushless hub motor
and a 36 V 10.4 Ah UL-certified battery, giving you up to
22 mph (35 km/h) top speed and 40 mi (64 km)
range in pedal-assist mode.* A coil-spring front fork,
21-speed Shimano-compatible drivetrain and versatile
26 × 2.1 in (54-559 mm) tyres deliver all-surface confidence
from weekday commutes to weekend trail runs.
The back-lit LCD shows speed, distance, assist level & battery bar, while
mechanical disc brakes, an integrated LED head-light and a
350 lb / 159 kg payload rating keep you safe and ready for
cargo runs. Ships 90 % pre-assembled with tools, charger
and keyed battery lock for quick, no-stress setup.
- 4 ride modes: throttle, 5-level PAS, manual & walk-assist.
- Quick-swap battery – full charge ≈ 4 h, locks in place for security.
- Shimano 21-speed trigger shifting – crisp, chain-safe gear changes.
- Mechanical disc brakes – consistent stopping in wet or dry conditions.
- Universal fit – ideal for riders 5′ 3″–6′ 4″ (160–193 cm).
Technical Specifications
| Attribute | Value |
|---|---|
| Frame | Step-over, carbon-steel, matte black |
| Motor | Rear-hub brushless • Peak 750 W (nom. 500 W) |
| Battery | 36 V 10.4 Ah (375 Wh) • Removable • Key-lock |
| Range* | 25–30 mi (40–48 km) throttle • 40–45 mi (64–72 km) PAS |
| Top speed | 22 mph / 35 km/h† |
| Charging time | ≈ 4 h (2 A smart charger) |
| Drivetrain | 21-speed • Trigger shifter • Shimano derailleur |
| Suspension | Coil-spring front fork |
| Brakes | Mechanical disc, 160 mm rotors |
| Wheels / Tyres | 26 × 2.1 in (54-559 mm) all-terrain, alloy rims |
| Weight (incl. battery) | 48.1 lb / 21.8 kg |
| Max load | 350 lb / 159 kg |
| Rider height | 5′ 3″–6′ 4″ / 160–193 cm |
| Included in box | E-bike (90 % pre-built), charger, keys, toolkit, LED head-light, reflector, manual |
| Warranty | 12-month limited • Lifetime tech support |
*Range tested with 75 kg rider on flat terrain, PAS level 1.
†Speed limiter can be set to comply with local e-bike regulations.
DoorMats Assurance: Free tracked shipping, easy 30-day
returns and lifetime technical support.
The first charge took about 3 hours and since then a full charge takes about 5 hours. There is a little switch on the battery that needs to be on to turn on power. Then press the little circle button on control panel on handlebars.
There a 5 speed modes. Press the + (plus) symbol to increase the number.
When the bike is turned on its a zero so you need to hit the plus button to get the bike to work.
To turn on the front light press and hold the + button.
I've been pretty much using throttle only.
The top speed for me is around 20 miles per hour in the highest mode of 5. I mostly ride in mode 3 or 5. Top speed in mode 3 is 16 miles per hour.
My trip to work is 10 miles round trip and using throttle only I still have a little power left when I get home.
The battery loses power faster if at the fastest setting so I try to keep it at 3.
In setting 2 it goes 13 miles per hour and I'll set it at 2 if I only have one bar left on the battery.
There are 5 bars on battery indicating how much power is left.
I would probably pedal more but this bike is a small size frame and it's difficult to use like a regular bike. The chart says this bike fits riders up to 6'3" tall but if you are 6'3" tall this bike would be difficult to ride. It would be easier to ride if the seat post was longer and the handlebars were riser type, taller or higher handlebars. The handlebars on the bike now are pretty low.
I may modify it with taller handlebars but the wiring connected to handlebars doesn't have much extra length on wires.
For now the bike is OK because I'm just using throttle and I'm not really using the pedals.
I changed the inner tubes to anti flat/slime brand inner tubes.
The wheels are difficult to take on and off because when I do I have to adjust the disc brakes again so it's easier to put in better inner tubes for less chances of flats.
The inner tube size on the Qlife racer I got is 26" X 2.1".
Slime brand has inner tubes available on Amazon that fit.
For the rear cargo rack I ordered one that clamps on to the seat post and also clamps on to bike frame because there are no pre drilled holes near base of seat post.
This bike arrived several days early which was great. It was supposed to take a week to arrive and I got it in 4 days.
When I show this bike to people they can't believe it only cost $400.
All in all its a great little bike and on throttle only with no pedaling it's fun to ride.
Cons: 2 day charge of daily riding. Batter mount is plastic, maybe less durable. Headlight is not that bright and provides poor visibility at night. Suspension is somewhat harsh. Tires lack good traction.
I use this as a daily commuter to & from work averaing 8 miles a day in an urban environment. I also use for recreational riding as well. The pedal assist takes some acclimating as it takes off rather quickly. Ride is fine although harsher than my dual Suspension bike. Tires have very poor traction on wet surfaces, gravel and trails. Brakes work well and provide good stopping power. Overall, I'm pretty satisfied with the bike and hope the durability exceeds my expectations.
Update: the company has told me they are sending a replacement back rim so so far they have been very good with answering my messages promptly it's taken a while but at least they are fixing the issue. I will post an update again once I receive my replacement wheel.
Update: they have shipped me a new wheel they have been very good with answering my messages and they have fixed my issue.
Update: well my bike was stolen which sucks but my brother bought me another bike from you guys he got me the orange one. At least the front and back rim are straight but I had to take it to the bike shop to adjust the gears and the breaks I really recommend you do this either yourself if you know what you are doing or like me take it to a shop. I spent 20$ dollars on adjusting the gears. The break's he did it for free because they weren't too bad but it normally costs 20$ dollars also and if you want to true your rims it cost 20$ dollars each also. With 80$ dollars your good. Luckily I only was charged for the gear adjustment.
We did lots of safety training on my bike and around traffic to program into his head that he’s practicing safe driving habits. Made him watch training videos as well as see examples of reckless teen drivers reported in local news and how they are impacting locals.
He continued to ask if he can take it on his own and it’s too much for him and not legal for kids. So we found this one which seems to be good.
The bike looks like a simple mountain bike, it functions without pedal assist and it does not attract attention, concerned people or theft.
The seat brought down to lowest level without the accessories works great. I don’t like that the brakes feel super stiff to activate. My brakes feel way nicer and smoother. I like that the speed is capped at 22 which is plenty fast… still too fast but better than my e-bike which is definitely too fast.
Price and terms of purchase. The price overall is good but still a lot of money, made him pay for part, pull his grades up, grandma helped with some, and spend more time outdoors exploring than on tech and couch.
He will grow quickly in the next couple of years so I think this will suffice.
For now we ride together until we have had enough street training. But the idea is to let him loose with instilled safety and accountability mindset.