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Electric Bike

julio 23, 2026

Ebike Polar Bear Dual Battery Combiner 50A 2 In 2 Out Up To 2000w,made in usa

This unique Polar bear ( Battery Combiner’) combines the power of two batteries, by allowing both to power your bike at the same time! This device have xt60 2 in 2 out , The batteries can be of different Ah capacities; they will discharge in unison, once the voltage is equal between them. HOW THEY WORK: During use the battery with the higher voltage will power the bike until such time when both batteries have equal voltage, then both batteries will power the bike simultaneously, giving you the combined current of both. The batteries should have good overlap in voltage (ideally the same). For example, combining a 48v and a 52v battery will work, since there is little overlap in voltage between the two batteries. A 48v & 72v battery have no overlap, thus they would not work together. The capacity (rang) while using this device can be greater than when using each battery sequentially, since the bike can then operate at a higher average voltage (the “Sweet Spot”). Safely connects two batteries together for added range Voltage Range: 12v - 84v Voltage drop <0.25v XT60 Connectors (2in 2 out ) with two battery inputs, two controller output All units are fully tested before send Dimensions of the Dual unit: 2x3” Additional Notes: Dual unit has two identical outputs (you can use either one or both for two load devices) ADDITIONAL NOTES: NOTE-1 : The Devicemay get warm during use; airflow is crucial for it to remain cool. NOTE-2: The P combiner is not covered for replacement, if rated amperage is exceeded or no airflow is available NOTE-3: “REGEN” circuits will not work with this combiner SIZING GUIDLINES: 50A - Applicable to most bikes up to 2,000w
julio 23, 2026

24V 250W E-Bike Conversion Kit Motor Controller Electric Bicycle Motor Kit NEW

1x 24V 250W DC motor. Install the kit on my 18 speed/24 speed bike. it is difficult to install. This kit is designed for normal bike, not for the bike that can shift gears. However, you can install the kit on the left hand side if your bike is18speed/24speed. you need to mount the freewheel on the left hand side on your rear wheel axis, and spot weld to secure it.
julio 23, 2026

24V 250W E-Bike Conversion Kit Motor Controller Electric Bicycle Motor Kit NEW

1x 24V 250W DC motor. Install the kit on my 18 speed/24 speed bike. it is difficult to install. This kit is designed for normal bike, not for the bike that can shift gears. However, you can install the kit on the left hand side if your bike is18speed/24speed. you need to mount the freewheel on the left hand side on your rear wheel axis, and spot weld to secure it.
julio 23, 2026

52v 1500w 37/60 mph/kmh 3.5kg water proof easy connect ebike kit (26″)

Description One stop shop for a quality high power motor kit with 90 day USA warranty. Compare with direct drive motors weighing 7 to 8 kg just for motor. The direct drives are so heavy they make bike into a harly. 1. Ultra light hub motor 3.5Kg motor 4.4kg complete with wheel 2. Geared for good torque 3. High RPM 370 rpm @36V, 450 rpm at 48v 4. Quality Alex 26″ wheel 5. High Quality spokes 6.1500 watt motor controller 7. LCD with speed and power settings 8. Thumb throttle 9. Color coded cables 10. Waterproof connectors. Shimano hyperglide cassette News Flash: Now with 90 day USA warranty including parts and labor*. Achtung Alert Warning Caution: I have several in stock and can ship in 2 days but stock varies. Please contact me directly at eBay mail to confirm availability. Free Ground ship for continental USA only. US seller. We check each motor and controller prior to shipment. In addition we ship from US so you don’t have to wait for 6 week shipping. Use it for ebike, scooter etrikes. Look at my feedback we are now top seller of 48v lithium ebike batteries on ebay. I strongly believe in positive thinking and friendly cooperation. I work hard to make sure my customers are satisfied even years after the sale. Check Monster 72V25 for sale here http://www.ebay.com/itm/272639096602 Plain English USA Warranty Warranty includes all parts and labor for a period of 90 days from date of purchase. Warranty excludes shipping charges. Warranty excludes motor/controller abuse. Shipping is only by ground Model 52V1500 Voltage range (V) 52V to 36V Current: 25AH Type: Geared hub Motor Location: Rear Motor Gears: Cassete mount Size: 26″ Weight: 3.9 KG (10 lbs motor w wheel) RPM 460 rpm at 48v Operational Temperature Range -20C +55C Storage Temperature Range -30C +70 48v33 motorC Package Content 1 x 52V1500 motor with wheel 1 x 1500 watt Motor controller 1 x LCD display and mode config 1 x Thumb throttle 1 x Motor cable (color coded water proof) 1 x LCD cable (color coded water proof) Comparison with other brands: Calibike 48v1kw Bafang Generic Generic Feature Hub geared mid drive Hub direct Hub w battery Mount Rear mid drive Rear Front Discrete/hidden Yes No No No Weight 2.9kg 4.5Kg 8kg 6.5kg speed 33 33 30 20 controller High quality proprietary Generic proprietary Ease of install easy hard easy easy disk brakes Yes No* Yes Yes Max torque High High Low Low durability High low max Low Waterproof conn Yes No No N/A cost $325 $500 $150 $400 power 1000 750 1000 250 noise Low high whine Low Low chain breakage No Yes No No pedal drag No No Yes No See Videos below 30c3 ebike: 1500w ebike races road bike and skateboard in san francisco Calibike 1500w motor hill climb Lombard street in San Francisco motor cried but actually accelerated up lombard street 30c3 1500w night full speed ride Night road is mostly empty can try full speed runs. was cruising at 33 mph but couldnt do sustained max run due to lights 30c3 ebike on 105 fwy closed caption has realtime speed amps and power. Notes 1. Instructions for 52v/1.5kw kit here 2. Calibike Motor test report here 3. Caveats Attention: 30 day right of return on DOA. 4. Restocking fee of 15% applies unless the motor kit is defective. Warning: The batteries, kits and ebikes sold are experimental. There is risk of accident and fire. By purchasing this kit(s) you acknowledge the risk and agree to hold Calibike harmless in case of any adverse circumstances.