BROVA BRHM0128 | Hardtail E-Gravel Frame
Engineered for all-road adventure performance, the BROVA BRHM0128 is a premium hardtail E-Gravel frame constructed from high-strength 6061 aluminum alloy.- Gravel-Optimized Geometry: Redesigned hardtail geometry for stable, comfortable long-distance riding across gravel, pavement, and mixed terrain.
- Seamless BOSCH SX Integration: Precision-engineered to perfectly integrate the BOSCH SX (BDU34YY) mid-drive motor and PT400W battery, with clean internal routing for a sleek, durable build.
- 700C Wide Tire Compatibility: Designed for 700C x 40C tires, delivering exceptional rollover and traction on diverse gravel and all-road terrain.
- Flat Mount Brake Interface: Equipped with flat mount disc brakes for superior stopping power and clean, aerodynamic integration.
- Industry-Standard Build: Features ZS52/ZS52 headset, 31.6mm seat post, and 142mm×12 E-thru rear hub, ready for professional gravel builds.
- Multi-Size Availability: Offered in 450/500/550/600 frame sizes, adaptable to riders of all heights.
-
BRHM0128
-
BROVA
-
6061
-
450/500/550/600mm
-
ZS52 / ZS52
-
Φ31.6
-
BOSCH SX BDU34YY 宽版
-
PT400W
-
142mmx12 E-thru system
-
Flat Mount
-
700C*40C
Full Suspension e-MTB Aluminum Frame
Engineered for high-end eBike brands, our full suspension aluminum e-MTB frame combines advanced kinematics design, optimized geometry, and robust structural integrity. Designed specifically for mid-drive motor systems, this frame delivers exceptional riding performance across enduro and trail applications.
We support OEM and ODM projects for premium eBike brands, from concept development to mass production.
Explore Engineering
Key Features-Why BROVA Engineering Stands Apart
Advanced Suspension Kinematics
Precisely engineered linkage system ensures efficient power transfer, improved traction, and superior shock absorption on technical terrain.
Optimized Geometry for e-MTB
Balanced reach, head angle, and chainstay length provide stability at high speed while maintaining agile handling.
High-Strength Aluminum Construction
Manufactured using premium 6061 aluminum alloy, offering an excellent strength-to-weight ratio.
Mid-Drive Motor Integration
Compatible with leading motor systems such as Bosch, Shimano, Avinox and Bafang.
Internal Cable Routing
Clean design with improved protection and reduced maintenance.
Battery Integration Options
Supports both internal and semi-integrated battery solutions.
Suspension System Design
Our suspension platform is developed to optimize leverage ratio and anti-squat characteristics, ensuring efficient pedaling and improved downhill control.
Fatigue Resistance
The frame is engineered to withstand long-term stress cycles, making it suitable for aggressive off-road riding conditions.
Structural Reinforcement
Critical stress areas such as the motor mount and pivot points are reinforced through advanced welding and CNC machining processes.
Manufacturing Precision
All frames are produced under strict quality control procedures, ensuring consistent alignment and dimensional accuracy.
| Size | ST | TT | HT | CA | SA | FR | OF | BB | RC |
| S | 450 | 420 | 135 | 71 | 74 | 410 | 45 | 60 | 445 |
| M | 500 | 420 | 135 | 71 | 74 | 410 | 45 | 60 | 445 |
| L | 550 | 430 | 155 | 71 | 74 | 410 | 45 | 60 | 445 |
| XL | 600 | 440 | 175 | 71 | 74 | 410 | 45 | 60 | 445 |
Manufacturing & Quality
ODM Project Case
Project: Full Suspension e-MTB Frame for EU Brand
An European brand partnered with BROVA to develop a full suspension eMTB platform for aggressive trail riding.
Our team delivered:
Custom geometry development
Suspension tuning & structural optimization
Full prototype validation
The project was completed within 4-6 months and successfully passed EU testing standards before entering mass production, and received positive feedback from our partner and the market.
M0128 E-BIKE Suspension AM FAQ
Yes, we provide full ODM service including geometry design, structure development, and prototype testing.
