3 Motors Retro Ebike - 47 mph Top Speed - Nice Ride Full Throttles.

#ebike #fattirebike #regenerativebraking
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Nice ride with a top speed of 75.6kl/h (47mph).
I usely have a 50 amps 48v controller for the 1500w front motor but I put it on my Giant Chopper bike waiting for a 50 amps replacement.

I also usely have a 60 amps 72v for my 3000w rear motor but I sparked it up while doing the shunts on it. I ordered another one that I will get in 10 days so t'il then I have a 50 amps 72v controller on this ride. This controller speed limite is 80 kl/h instead of 72kl/m like all the other KT-controller and the regenerative brakes only work when the voltage is below 75v of the 84v availble when full charged. I don't know why.

Specs on this ride:
New 26x4.0 Duro Fleetwood fat bike semi-slick road tires.
Air Pressure 15-30 PSI, 1-2.1 BAR, Rim Width 80-100 mm, Folding Bead, 60 TPI, Weight 1210 g

I setted front and rear tires to 20 psi (Air Pressure 15-30 PSI). I've tried 25 psi and it was too hard. 20 psi is perfect absorbing cracks of the road perfectly making the ride extremly smooth.


(MID DRIVE MOTOR): BAFANG BBSHD 48V 1000W Mid drive Motor 100mm with 52V20AH 30amp, BMS Chip: 30A Battery. Peak is 58.8 volts x 30 amps = 1764w

(FRONT MOTOR): 48V 1500W
1. Full Speed: about 55-60km
2. Front Hub Motor: Brushless Non-gear Hub Motor
3. Rim: Double-wall Aluminium Alloy Rim
4. wheel Bottom bracket: Front 135mm.
Develop 2300w.

(FRONT MOTOR BATTERY):
48V 17AH
Charging voltage: 54.6V
Charging time: 4-6 hours
Weight:7b（ 5.4KG）
This battery is in the fake tank.

(FRONT & REAR Displays) Regenerative Controller displays KT- LCD8HU.
Brake Regeneration, Anti-Charge ,cruise Function
LCD8 display with USB function.

(FRONT MOTOR CONTROLLER) 45 amps KT- Controller:
model 18 Mosfets
Rated voltage DC48V
Rated current 25A
Low voltage protection DC45
50±1A
Speed set 1-4.2V
Brake input Low-level
size 176*82*41mm



(REAR DIRECT DRIVE MOTOR) :
Model:72V 3000W Fat Bike Rear Hub Motor
●Wheel Diameter (Inch): 26"
●Construction:Gearless drive
●Rated Voltage (DCV): 72
●Rated Power (W): 3000
●Rated Speed(KM): 80
●Rated Speed(rpm):579-596
●Torque(N.m): 91-101
●Fork size(mm):170
●Motor weight (kg): about 10.1
●Matching controller (A): 50A
●Magnet height: 45H
●Number of magnet poles: 46
●Operating Temperature: -20-45℃


(REAR MOTOR CONTROLLER):
50+2A amps KT- Controller:
model 18 Mosfets
Rated voltage DC72V
Rated current 25A
Low voltage protection DC60
Speed set 1-4.2V
Brake input Low-level
size 176*82*41mm

(3000W REAR MOTOR 72V BATTERY)
72v 24ah Lithium Ebike Battery
Includes 5 amp Charger and Fabric Adjustable Velcro Battery Bag
3000w
Powerful NCR21700T 4800mah Genuine cell PANASONIC.
CE RoHS National Safety Certified
10AWG Silicon discharge wire XT90 Discharge plug can be customized
60amp Intelligent BMS protects over-discharge, short circuit and balance cells for longevity
90amp Maximum discharge current
Pure Nickel Plating for low internal resistance
Battery life span can reach 5 years or 1000 charges/cycles
Tire (summer): 26x4.0 Duro Fleetwood fat bike semi-slick road tires. 60 TPI.
Tire (winter): 26" x 4.0" 45NRTH DILLINGER 4 TIRE: 26IN, STUDED, 60 TPI

The bike weight is about 160lbs.
I'm 220lbs + 15-20lbs large 70-85L Tactical Backpack. (that contain cable lock, brake disc lock, keys, emergency tool kit ect...)
Aproximatly 10-15 lbs+ of cloths, set of keys, belt, helmet, boots ect...
Total weight about 400lbs.


TORQUE:
Front 1500w motor has 55 N.M of torque.
Rear has 101 N.M of torque.
Bafang mid drive 1000w motor has 160 N.M of torque. Total 316 N.M (or
233 Foot-Pound (ft∙lb)


BIKE TOTAL:
72v + 48v + 52v = 72 voltes.
Peak 84v + 54.6v + 58.8v = 197.4 voltes.
Controller Maximum current amps (bms): 45 amps (48v) + 50 amps (72v) + 30 amps (52v)= 135 amps.

Batteries BMS chips (Maximum current): 50 amps (48v) + 60 amps (75v) + 30 amps (52v) = 140 amps.

Batteries amps hours: 24ah + 20ah + 20 ah = 64 amps hours.

Motor Watts: 1500w + 3000w + 1000w = 5500 watts.

Watts peak: 2400w (front motor) + 4500w (rear motor) + 1764w (mid drive) = 8664w.

Newton Meters of torque: 55nm + 101nm + 160nm = 316 N.M (or
233 Foot-Pound (ft∙lb)

Top speed: 72.4 kl/h (45mph). Both my front and rear display are limitd to 72 kl/h (45mph). Anyway I don't want to go faster than that, on city street.

0/50km/h (0/31 mph) in 4.18 seconds.
Any question about my experience are welcome.