Instructables

What is the best E-bike Kit for me?

I just moved to San Diego, and my primary mode of transportation is my trust P.O.S. bike. it's a rather generic mountain bike, which worked fine in the relatively flat podunk i used to live in, but now in sandiego, most of the roads i need to travel are rather hilly, in fact, my appartment complex can't be reached without riding up a redonkulous hill. I'm looking for an E-bike conversion kit, to help me manage these hills, because it is treacherous at best. Does anyone know of an electric conversion kit with enough torque to haul me up a respectable bit of hill?

frollard5 years ago
most e-bikes are assists...you'll likely end up still doing 'some' pedalling if the hill really sucks.

Commonly hub motors are used - and can be found at many ebike retaillers, (google it)

a less common method is to use a motor geared to your front pedal crank - thus you can use the pedals with or without the motor, and the motor will be able to use your variable geared 'transmission' - more complex, but more customizable.

I was reading a site, last night - to calculate your battery usage. For heavy usage, no pedalling, high speed, expect to use 14-20 watt-hours per kilometer. Multiply by your trip distance to get total watt-hour capacity...then divide by your motor voltage to get the amp-hour rating of battery you'll need.

Example - 5km round trip, @ ~15watt-h/km = 65 watt hours. 24 volt motor/battery pack would need a capacity of about 3amp hours.
mwaz2 months ago

The E-BikeKit from Electric Bike Technologies is one of the best
electric bike kit systems you'll find from a US supplier. They have been
around since 2008 and have a great reputation for quality kits and
service. they are also the first hub motor kits offered by J&B
Importers, which means you can get them from almost any bike shop in the
country. Great website too: http://www.ebikekit.com/

EBikeKit-2013-DD-RH-kit.jpg
lori20121 year ago
i get a best conversion kit 36V 500W from M&C company, their motor and batteries are powerful, www.mc-ebikemotor.com
cnebikes2 years ago
hi, sir!
i recommend 48v 500w rear wheel e-bike conversion kits for you, and with 48v 10ah lithium battery rack. Do not need high speed, about 25-30 km/h, but a high torque for riding up hills. This motor has a high efficiency more than 82%, so you can full used the battery's capacity. And why rear wheel? It is safty and good for riding up hills. Please come to CNEBIKES, if you have any questions. www.cnebikes.en.alibaba.com

Jason
ampedbikes4 years ago
Probably your best bet is to go with an Ampedbikes kit, we have a substantial amount of torque, high end direct drive, & geared, 36v 750watt motors. Our kits can travel for about 20 miles, give or take your pedal intake, and very affordable at only $475 for a complete kit including 36v 12AH SLA Batteries

check us out at

www.Ampedbikes.com
www.electricbicycle-conversionkit.com
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markswagan3 years ago
EBIKEPOWER COMPANY CAN SUPPLY YOU

PLS VIEW THE WEBSITES:
Http:// www.electricbicycle-conversionkit.com

Wattage: 251 - 350w Voltage: 36V Power Supply: Lithium Battery
Wheel Size: Other Motor: Brushless Certification: CE
Frame Material: Aluminum Alloy Foldable: Yes Max Speed: 30-50km/h
Range per Power: > 60 km
Packaging & Delivery
Packaging Detail: CTNS
Delivery Detail ONE WEEK
Specifications
electric bicycle conversion kit
12-28''wheel
350-1000w
CCC, CE, ROHS, ISO9001, EN15194
Let's make things better!
electric bicycle conversion kit
FOR EURPEAN MARKET
BATTERY MOTOR WHEEL WEIGHT
24v-10AH LIMN FRONT gear motor 100MM 150w-250w 12"-28"700C 13KG
24v-10AH LIMN FRONT gear motor (100MMwith DISK BREAK ADAPTER) 150w-250w 12"-28"700C 13KG
24v-10AH LIMN REAR gear motor 135mm+6 CLUSER 150w-250w 12"-28"700C 13KG
24v-10AH LIMN REAR gear motor (135mm+6 CLUSER with DISK BREAK ADAPTER) 150w-250w 12"-28"700C 13KG
36v-10AH LIMN FRONT gear motor 100MM 150w-350w 12"-28"700C 16KG
36v-10AH LIMN FRONT gear motor (100MMwith DISK BREAK ADAPTER) 150w-350w 12"-28"700C 16KG
36v-10AH LIMN REAR gear motor 135mm+6 CLUSER 150w-350w 12"-28"700C 16KG
36v-10AH LIMN REAR gear motor (135mm+6 CLUSER with DISK BREAK ADAPTER) 150w-350w 12"-28"700C 16KG
FOR USA MARKET
BATTERY MOTOR WHEEL
24v-10AH LIMN FRONT direct motor 100MM 200-350w 12"-28"700C 15KG
24v-10AH LIMN FRONT direct motor (100MMwith DISK BREAK ADAPTER) 200-350w 12"-28"700C 15KG
24v-10AH LIMN REAR direct motor 135mm+6 CLUSER 200-350w 12"-28"700C 15KG
24v-10AH LIMN REAR direct motor (135mm+6 CLUSER with DISK BREAK ADAPTER) 200-350w 12"-28"700C 15KG
36v-10AH LIMN FRONT direct motor 100MM 250w-500w 12"-28"700C 18KG
36v-10AH LIMN FRONT direct motor (100MMwith DISK BREAK ADAPTER) 250w-500w 12"-28"700C 18KG
36v-10AH LIMN REAR direct motor 135mm+6 CLUSER 250w-500w 12"-28"700C 18KG
36v-10AH LIMN REAR direct motor (135mm+6 CLUSER with DISK BREAK ADAPTER) 250w-500w 12"-28"700C 18KG
LEAD ACID SYSTEM
24v-10AH system OTHER PARTS SAME CHOICE AI LI SYSTEM
solar4 years ago
It all boils down to how much you want to spend. if you can afford it (and I suggest you find a way) avoid SLA battiers at all costs. They are heavy/don't last the long and limit the range. Newer LION or lithium iron phosphate (LiFePO4, or LFP) are much better alternative.
In the state of california the law reads that the bike should be no more then 750W (1hp) that should go no more then 20mph on a flat surface.
Some motors are more power hungry vs others. Crystalyte motors are probably the most powerful on the market BMC Motors are pretty decent. Pedal assist only motors are lame (Bionx) . You want a BLDC motor, or you will turn around in a few months to end up buying another motor.
Expect to spend atleast 1k on a motor, Non SLA 10AH battery ,BMS and charge controler. With all that said. I'm very content with 500W motor and 10AH LION setup 20miles@20mph in the Silicon Valley.

Good luck.