Same-day handling on business hours
on business hours
YES we price match. Shoot us a message in the chat with the link of the proof, and we’ll check it out right away. If it’s legit, you’ll get a custom promo code on the spot—sometimes we’ll even throw in a little extra.
- High quality, Danish designed, rear hub motor electric assist conversion kit
- Promovec 50750-BL Brushless rear hub motor
- Nominal power: 500W
- Max Torque: 43Nm
- Voltage: 48V
- Maximum assist speed: 32 kmh / 20 mph
- 5 assist levels
- HG cassette compatible
- Rim & Disc brake compatible
- 6-Bolt disc mount
- Hub spacing: 138mm
- Heavy Duty 12G stainless steel spokes
Battery
- Promovec 50637-BL-C Li-Ion battery
- 48V 8.8Ah
- Capacity: 422Wh
- Range: up to 79 km / 49 miles
- Universal fit rear rack
- Integrated controller & rear LED light
Interface
- Promovec 50986 LCD Center display
- 83.6 x 62.5mm backlit display
- IP65 protection
- CE / EN 15194 / REACH / ROHS certified
- Brackets for 22.2/25.4/31.8mm handlebar mounting incl.
- 5-buttons control panel
Sensor
- Speed sensors for regular square taper (JIS) bottom bracket or Hollowtech II type spindle crankset incl.
All hardware, cables and harness incl.
Wheel motor unit
Attributes
| Ah | 7.8Ah |
| Battery Type | Rear rack |
| Console Color | Black |
| Motor | 500W |
| Motor Color | Black |
| Rim Color | Black |
| Voltage | 48V |
| Wheel Diameter | 700C |
No Sweat Return Policy
Got the wrong items or it’s just not what you expected? No sweat! You can send it back within 10 days of delivery.
To be eligible for restocking, the product must also meet the following conditions:
- The product must be in its original packaging without any price or promotional stickers.
- The outer box must be in perfect reselling condition without any writings.
- The product must be intact and in the same condition as when originally purchased, with no installation or use.
- The product must not have been purchased at a clearance price.
Swaps
Need to swap out your item? Here’s how:
Speedy Exchange
Want your new item right away? Place a new order, and we’ll ship it before receiving the return. Your card will be charged for the new order, and we’ll refund the old one as soon as we get it back.
Standard Exchange
Send back the item you don’t want, and we’ll ship your new order once we receive the return. We’ll only charge (or refund) the difference in price.
Sale Items
Items on sale with a 20% discount or more are final sale and can’t be returned or exchanged. Consider selling these items locally, like on Kijiji.
Complete details here : https://www.b1keparts.com/policies/refund-policyFrom Quebec, to your doorstep, expect a smooth ride with no surprise fees like duties or brokerage. We ship within 1 to 4 days. More than 80% of orders arrive in 2 days or less. Need it faster? Let us know, and we’ll pedal extra hard for express service.
For purchases of $149 and over with items weighing less than 25 lbs, shipping is free. For oversized items or items weighing between 25 and 100 lbs, an additional shipping fee will apply based on the specific case.
