FSA Alloy Megatooth E-Bike Chainring – 38T, Bosch Gen4, 104 mm BCD
Part Number: 38000408004050
Brand: FSA
Type: CR E-BIKE BOSCH GEN4 Alloy 38T MT WB453
The FSA Alloy Megatooth V-Shape chainring is designed specifically for electric bikes equipped with the Bosch Gen4 drive system. Its 1x design and 38-tooth configuration provide reliable chain retention, while the aluminium construction offers low weight and durability.
This chainring is compatible only with the Bosch Gen4 system and the following FSA / OLI spider adapters.
Key Features
Aluminium chainring designed for e-bikes
Megatooth tooth profile for reliable chain retention
V-Shape design
Designed for 1x drivetrains
38-tooth configuration
Black finish
Designed for Bosch Gen4 drive systems
Technical Specifications
| Specification | Details |
|---|---|
| Brand | FSA |
| Part Number | 38000408004050 |
| Type | CR E-BIKE BOSCH GEN4 Alloy 38T MT WB453 |
| Material | Aluminium |
| Tooth Count | 38T |
| Bolt Circle Diameter (BCD) | 104 mm |
| Drivetrain | 1x |
| Colour | Black |
| Compatible Drive System | Bosch Gen4 |
| Compatible Spider Adapters | W0134, W0138, W0140 |
Compatibility
Compatible only with the following:
Bosch Gen4 drive systems
FSA / OLI spider adapters: W0134, W0138 and W0140
Important: Before purchasing, check the exact motor and spider adapter model. Compatibility with other Bosch generations or unlisted adapters is not guaranteed.
Applications
The FSA Alloy Megatooth 38T chainring is designed for 1x drivetrains on Bosch Gen4 e-bikes when used with the specified W0134, W0138 or W0140 spider adapter. Check the 104 mm BCD and 38-tooth configuration to ensure compatibility with your existing setup.
