90mm double bearing bike bottom bracket
,HITWAY BK5 e-bike crank spindle
,electric bike bottom bracket with warranty
Reliago 90mm Double Bearing Bike Bottom Bracket Crank Spindle for HITWAY BK5 E-Bike
Product Overview
The Reliago BK5-BB E-Bike Bottom Bracket is designed to provide stable crank support and smooth rotation for compatible bicycle drivetrain systems. With a 90mm shell width and 145mm total spindle length, it offers a replacement solution for bicycles using the corresponding bottom bracket configuration.
Featuring a dual bearing structure, this bottom bracket assembly supports the crankset while helping maintain consistent rotational movement during pedaling. The spindle connects the crankset to the bicycle frame and serves as an important part of the bicycle drivetrain system.
Developed for the Reliago BK5 Electric Bike, the BK5-BB is suitable for replacement and maintenance applications. It can also be considered for compatible folding e-bikes, wider-frame bicycle designs, and custom bicycle projects that use a matching 90mm bottom bracket shell.
Product Specifications
| Specification Item | Detailed Parameters |
| Product Name | E-Bike Bottom Bracket |
| Brand | Reliago |
| Model Number | BK5-BB |
| Shell Width | 90mm |
| Bearing Structure | Dual Bearing |
| Axle Type | Crankset Spindle |
| Total Spindle Length | 145mm |
| Installation Position | Bicycle Bottom Bracket |
| Compatible Bike | BK5 Electric Bike |
Core Product Features
Designed for bicycle frames with a 90mm bottom bracket shell width.
Dual bearing construction supports smooth crank rotation and reliable everyday operation.
145mm total spindle length provides the specified crankset spindle configuration.
Application Scenarios
Designed as a replacement bottom bracket for the Reliago BK5 Electric Bike.
Suitable for compatible folding electric bicycles requiring a 90mm bottom bracket configuration.
Can be used with bicycle frames designed around the specified wider shell width.
Frequently Asked Questions (FAQ)
Q1: What does a bicycle bottom bracket do?
A: The bottom bracket is installed in the bicycle frame and supports the crankset spindle, allowing the crank assembly to rotate during pedaling.
Q2: What shell width is required for this bottom bracket?
A: The BK5-BB is designed for a 90mm bottom bracket shell width.
Q3: What is the total spindle length?
A: The total spindle length is 145mm.
Q4: Can this bottom bracket be used on an electric bicycle?
A: Yes. It is designed for the Reliago BK5 Electric Bike and compatible electric bicycle applications with the matching bottom bracket configuration.
