Complete installation hardware accessory kit for BBS series mid-drive electric bike motors. Contains fixed bracket, M33 steel nut, M33 aluminum protective nut, assorted hex screws, gaskets and all required fasteners for frame mounting & crankset assembly. Perfect replacement & upgrade parts for your e-bike mid motor conversion project.
This full mounting hardware package is specially designed for BBS01, BBS02, BBSHD mid drive electric bike motors.
All necessary installation components are included to securely attach the mid motor to your bicycle five-link frame. Whether you are building a new e-bike or replacing worn original fasteners, this all-in-one hardware kit meets your assembly demands.
Components List
✅ Fixed Bracket
Used to secure the motor onto bicycle five-link frame
Small mounting hole: 6mm (2pcs hole)
Outer large ring dimension: 335mm
✅ M33 Steel Nut
Mounted on outer side of fixed bracket, locks the bracket firmly
Outer diameter: 420mm | Inner diameter: 310mm
✅ M33 Aluminum Protective Nut
Install outside of M33 steel nut for protection
Outer diameter: 420mm | Inner diameter: 320mm
✅ Internal Hex Socket Screws (With Rubber Gaskets)
M5*12: For fixing chain wheel / crankset
M6*12: For mounting fixed bracket
M640 / M618 / 73mm M6 screws: Frame mounting variants
M8*15: Crank fixing bolts (with gasket & dust cover)
✅ ST3.9*6 Self-tapping Screws
Used to install chain guard / chain cover
*Note: 1000W motor models do NOT require these self-tapping screws
✅ Screw Spacers/Gaskets for Fixed Bracket
Hole diameter: 6mm, cushion sleeves for stable installation
Key Features
🔧 Complete set, match original BBS motor installation standard
🔧 Precision machined metal nuts & high-strength bolts
🔧 Comes with sealing gaskets to prevent loosening and vibration
🔧 Multiple screw specifications to fit different frame configurations
🔧 Easy direct replacement for damaged or missing factory hardware
🔧 Widely compatible with BBS01, BBS02, BBSHD mid drive e-bike motors
Compatibility
Fits Bafang BBS01, BBS02, BBSHD mid drive electric bike motors
Suitable for e-bike conversion, motor reinstallation and accessory replacement
Package Includes
Fixed Bracket ×1
M33 Steel Nut ×1
M33 Aluminum Nut ×1
Assorted Internal Hex Screws with gaskets
Crank fixing bolts
Chain wheel fixing screws
Frame mounting screws
Chain cover self-tapping screws (exclude for 1000W motor setup)
Mounting spacer sleeves
Warm Reminder
Please confirm your BBS motor model and frame size before purchasing.
The self-tapping screws for chain guard are unnecessary when using 1000W mid drive motors.
Product Bullet Points (Can be used for Feature section / Facebook Product Post)
All-in-one mounting hardware kit for Bafang BBS series mid drive motors
Contains fixed bracket, M33 steel nut, M33 aluminum protective lock nut
Multiple size hex socket screws equipped with anti-vibration gaskets
Precision CNC machined metal construction for long service life
Direct replacement original accessories for e-bike motor installation
Supports BBS01, BBS02, BBSHD mid motor e-bike conversion
Different bolt specifications adapt to various bicycle five-link frames
Self-tapping screws for chain guard included (Not required for 1000W motors)
Meta Description (For SEO Yoast)
Full BBS mid drive motor fixed bracket mounting hardware kit including M33 steel nut, M33 aluminum nut, hex screws and all fasteners. Complete installation accessory set for Bafang BBS01 BBS02 BBSHD electric bike mid motor conversion.
H1 / H2 Heading Options
H1: BBS Mid Drive Motor Fixed Bracket Mount Hardware Kit | M33 Nut Screw Set
H2: Complete Installation Accessory Set For Bafang BBS01 BBS02 BBSHD E-bike Mid Motor