Miranda Bosch G4/G5 Chainring 38T Aluminium – Precision E-MTB Power Transfer
This Miranda chainring is purpose-built for Bosch generation 4 and 5 mid-drive motors, delivering a durable aluminium construction with a 38-tooth profile designed for consistent, efficient pedaling performance. Its precise chainline compatibility ensures smooth chain engagement and reduced wear on your drivetrain components. Best for e-MTB owners running a Bosch G4 or G5 motor system who want a reliable, direct-fit chainring replacement.
Key Features
- Lightweight aluminium construction for reduced rotating weight
- 38T tooth count optimized for e-MTB torque and cadence
- Specifically engineered chainline for Bosch Gen 4 and Gen 5 motors
- Direct compatibility ensures easy, precise installation
- Durable material built to withstand high-torque e-MTB riding
Specifications
- Brand: Miranda
- Compatibility: Bosch Gen 4 and Gen 5 motors
- Teeth count: 38T
- Material: Aluminium
- Chainline (Bosch Gen 4): 50mm (KL50)
- Chainline (Bosch Gen 5): 52mm
- EAN: 5603895589831
- Product code: 8577508
Is this chainring compatible with my Bosch motor?
This chainring fits both Bosch Gen 4 (50mm chainline, KL50) and Bosch Gen 5 (52mm chainline) mid-drive motor systems. Check your motor generation before ordering to ensure the correct chainline match for optimal drivetrain performance and longevity.
Why choose an aluminium chainring over a steel one?
Aluminium chainrings reduce overall bike weight, which improves acceleration and handling, especially valuable on e-MTBs where every gram counts. While steel offers slightly more wear resistance, quality aluminium rings like this Miranda 38T strike an excellent balance between durability and weight savings for demanding trail use.
What does the 38T tooth count mean for my ride?
A 38-tooth chainring provides a balanced gear ratio suited to e-MTB riding, supporting efficient power delivery from the Bosch motor across varied terrain. It works well for riders wanting steady cadence and torque management on climbs and technical trails alike.

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