Mid Drive Full Suspension Ebike Frame – Central Motor Aluminum Mountain Bike Frame
| Frame Material |
Aluminum Alloy 6061 Seat Post |
| Size |
16″ / 17″ / 18″ / 19″ / 20″ / 21″ |
| Tire |
26″ | 27.5″ | 29″ |
| Motor Compatibility |
Bafang M500 / M600 / M620 |
| Battery Design |
In-frame removable battery design |
This frame is designed for a 26-inch wheel size — a versatile option for both on and off-road cycling. The high step design allows for easy mounting and dismounting, while the mid drive motor placement and four-link full suspension design provides efficient power to the bike, with a focus on comfort, stability, and durability.
🏭 Manufacturing Excellence: CNC blanking machine, CNC pipe bender, CNC milling machine, CNC lathe, T4/T6 furnace, and automatic film coating line ensure the accuracy and strength of frame production — with a monthly capacity of 20,000 aluminum alloy frames.
Product Parameters
| Specification |
26" / 27.5" or Customized |
| Material |
Aluminum / Alloy |
| Foldable |
No |
| Size |
26" or 27.5" |
| Use |
Mountain Bikes, Downhill Bicycles |
| Weight |
5–10 kgs |
| Customized |
Yes |
| Type |
Suspension Mountain Bike Frame |
| Color |
Customized |
| Frame Material |
Alloy 6061 |
| OEM Available |
Yes |
Key Features
1
Built for the Downhill & All-Mountain Rider
This frame is engineered for mountain biking and downhill riding. With a robust Alloy 6061 construction and a weight range of 5–10 kg, it delivers the strength and stability needed for aggressive trail riding, jumps, and technical descents. Whether you are building a hardtail or full-suspension setup, this frame provides a solid foundation for high-impact riding.
2
Premium Alloy 6061 – Strength Meets Durability
Crafted from heat-treated Aluminum Alloy 6061, this frame offers exceptional rigidity and fatigue resistance. Unlike cheaper alloys, 6061 provides:
- High tensile strength for withstanding repeated impacts
- Corrosion resistance for long-term durability in wet or muddy conditions
- Optimal stiffness for efficient power transfer during climbing and sprinting
The 5–10 kg weight range ensures the frame is strong enough for downhill abuse yet manageable for climbing.
3
Wheel Size Flexibility – 26" or 27.5"
This frame supports both 26-inch and 27.5-inch wheels, giving riders and builders the freedom to choose:
🚵
26" Wheels
Quick, agile handling — perfect for dirt jumps, pump tracks, and tight trails.
🏔️
27.5" Wheels
Best balance of rollover capability and acceleration — ideal for all-mountain and enduro riding.
Both sizes are optimized for proper geometry and clearance, ensuring the bike handles as intended.
4
True Suspension Design – Engineered for Control
As a dedicated suspension mountain bike frame, it is designed to work seamlessly with modern suspension systems:
- Reinforced head tube and down tube for fork and shock compatibility
- Optimized linkage points (on full-suspension models) for progressive suspension feel
- Ample tire clearance for 2.3" to 2.6" tires, even in muddy conditions
The frame geometry is tuned for aggressive descending while maintaining climbing efficiency.
Frequently Asked Questions (FAQ)
What motor brands are compatible with this ebike frame?
This frame is compatible with Bafang M500, M600, and M620 mid-drive motors, making it suitable for a wide range of electric mountain bike builds with proven motor performance.
What wheel sizes does this frame support?
The frame supports both 26-inch and 27.5-inch wheel sizes. Custom sizing options are also available upon request, giving builders flexibility in their setup.
Is OEM or custom branding available for this frame?
Yes, OEM service is available. Custom colors, logos, and geometry modifications can be arranged. Please contact us with your specific requirements for a tailored quote.
How is the battery integrated into the frame?
The frame features an in-frame removable battery design, which keeps the battery securely housed within the frame for a clean aesthetic and optimal weight distribution, while still allowing easy removal for charging.
What is the production capacity and lead time for orders?
Our facility has a monthly production capacity of 20,000 aluminum alloy frames, supported by CNC machining, T4/T6 heat treatment furnaces, and automated coating lines. Lead times vary by order volume — please contact us for details.
What tire clearance does this suspension frame offer?
The frame provides ample tire clearance for tires ranging from 2.3" to 2.6" in width, making it suitable for aggressive trail riding in various conditions including mud and loose terrain.