Bobs Bike with Bafang BBSHD on bike stand
15.5MPH my ass LOL little speed test no power just me and a hill
Click Picture to view
Bike
Frame - 2015 29" Karakoram GT upgraded with Rockshox XC32 front shocks
Wheels - 29" DT Swiss 465 D with Shimano hubs
Tyres - CST Ouster 29" x 2.25" EPS Puncture Protection Folding Tyres
Brakes -Shimano M355 Hydraulic Brakes with 160mm Brake Discs
Shimano Deor Rear gears and derailleur
Chain - Hand waxed KMC X9
Handle bar T extension
48v-60v Light kit wired to battery
Mid Drive Motor Kit
Bafang BBSHD 1000w (1600w Peak) 48v - 67mm Bottom bracket
DPC18 Color Display
Standard Bafang sunflower Chainwheel 46T
Gear Change Sensor
Rob from Eclipse bikes who supplied the bafang motor provided exceptional customer support, going above and beyond any other seller.
Rob even takes the motor apart and replaces the grease to extend the lifetime and reliability of the motor.
Dont buy from china you will never get a return within a month (or ever) or any customer support, and you will pay import tax.Our speed controller blew up and was replace within three days !!!
Buy local from a trusted supplier like rob and his price are amazinly low if not the cheapest in England !!
Chainwheel replaced with
BBSHD 42T Chain wheel similar to but NOT Lekkie Bling Ring - Click here for seller
Battery
Custom 48v Nominal (54.6V Max @ 4.2V per cell)
High voltage set to 53.3V (4.1V per cell), Low voltage set to 40.3V Low (3.1V per Cell)
34.3Ah - 91 Samsung 21700 50E (5000maH)
Max Capacity (4.2V -3.1V) 34.3Ah, Usable Capacity (4.1V-3.1V) 28.175Ah
Maximum watt hours 1650Wh (4.2V -3.1V) , Usable watt hours 1355Wh (4.1V - 3.1V)
Rated Wattage 2640W, Max Current Draw 102.9A, Constant Current Max 68.6A
Limited to 27A via 60A Continious current Smart BMS
54.6V Charger Charging rate - 3A 7hrs, 5A 4.5hrs - Max Charge Rate 15A
Integrated GPS Tracker Integrated 60v to 12v buck boost volatge converter
XT90 Connector
Click here for more details and construction of the battery
Range as of yet unknown due to Bafangs milage estimated mileage being irratic.
The battery is still esitmating its capacity, estimation complete after 10 power cycles which we have not yet completed.
Top speed about 35mph with a 42T Chainring with a 4 to 1 gear ratio on the flat.
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| BBSHD 42T Chain wheel similar to but NOT Lekkie Bling Ring |
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| Gear change sensor - Stops motor for smooth gear change |
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| Front 29" wheel with XC32 Rockshox suspension |
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| Control panel (Left), Bafang DPC18 colour display and a mobile phone for the battery |
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| Front end with T-Bar fitted to hold phones |
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| Front Lights | Crossbar | Original Chainring |
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| Crank to Bafang | Downtube view | Side of Bafang |
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| Rear Wheel | Waxed KNC Chain | Shimano Gears |
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| Rear 160mm discs | Rear 160mm discs | Front 160mm discs |
Bafang Speed Controller Burnout
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This is the first controller, which mysteriously burnt out during a ride out. Not sure as to why it happend. The settings on the speed controller were limited to 28A at 48V, the BMS was limited to 40A. We contacted the supplier of the motor, who replaced the speed controller no questions asked !
If you have a smart BMS limit its output as a double safeguard ! Buy from a local supplier as replacement parts can be sent quicky.
On receiving the new controller we limited the speed controller amps to 27A and the Smart battery amps to 27A also to be on the safe side. We fitted the speed controller which was an easy job, set it all up and so far after 361 miles we have had no problem. I have a feeling it was just a bad speed controller. Many thanks to the supplier who was fantastic.
