FSA WB385 38T Direct Mount Chainring with Chainguard for KTM Bosch Gen3

FSA WB385 38T Direct Mount chainring set with chainguard for compatible KTM e-bikes equipped with a Bosch Generation 3 (Gen3) mid-drive motor.

This replacement chainring features a durable steel 38-tooth chainring, Direct Mount installation and an integrated chainguard. It is designed for compatible KTM e-bike models and supports a 50 mm chainline or 53 mm chainline for Boost 148 setups.

Important: please check the original chainring, mounting interface, Bosch motor generation and KTM model before ordering. Similar-looking Bosch chainrings are not always interchangeable.

FSA WB385 38T Chainring Specifications

• Manufacturer: FSA
• Model / MPN: WB385
• Number of teeth: 38T
• Mounting: Direct Mount
• Material: Steel
• Chainline: 50 mm
• Boost chainline: 53 mm (Boost 148)
• Chainguard: Included
• Motor compatibility: Bosch Generation 3 / Gen3
• Application: Compatible KTM e-bikes
• Article number: 8680
• SKU / reference: 56500749700
• EAN: 4713170260407

Compatible KTM E-Bike Models

The FSA WB385 38T chainring set is suitable for the following listed KTM 2021 e-bike models:

• 021342 – KTM Macina Aera P272
• 021343 – KTM Macina Aera P272 LFC
• 021332 – KTM Macina Ride 291
• 021333 – KTM Macina Ride 271
• 021335 – KTM Macina Mini Me 261
• 021336 – KTM Macina Mini Me 241

Compatibility should always be confirmed using the bike model, year, Bosch motor generation and original chainring specifications.

Bosch Gen3 Direct Mount Compatibility

This chainring is intended for compatible e-bikes using a Bosch Generation 3 mid-drive system and the corresponding Direct Mount chainring interface.

Bosch e-bike motors are available in different generations and use different chainring mounting systems. A chainring designed for Bosch Gen3 should therefore not automatically be considered compatible with Bosch Gen2, Gen4, Smart System or other motor generations.

50 mm and 53 mm Boost Chainline

Correct chainline is important for smooth drivetrain operation and proper chain alignment.

• Standard chainline: 50 mm
• Boost 148 chainline: 53 mm

Please compare the chainline and rear hub configuration of your bicycle with the original setup before installation.

How to Check Compatibility

Before ordering the FSA WB385 chainring, please verify:

• Your original chainring has 38 teeth.
• Your e-bike uses a compatible Bosch Gen3 motor.
• The chainring uses the correct Direct Mount interface.
• The required chainline is 50 mm or 53 mm for Boost 148.
• Your KTM model is listed as compatible or uses the same drivetrain specification.
• The original part number or dimensions correspond to this replacement.

We recommend identifying replacement drivetrain components by the bike model, model year, motor generation and original part number rather than appearance alone.

Not Sure if FSA WB385 Fits Your E-Bike?

If you are unsure whether this chainring is suitable for your KTM or Bosch-powered e-bike, please contact us before ordering.

For compatibility checking, please send us clear photos of:

• the original chainring;
• the chainring mounting area;
• the Bosch motor identification label;
• any part numbers printed on the original chainring;
• your bike model and model year.

You can also send photos and information by email to info@elanusparts.com.

Browse more Chainrings or view our complete range of E-Bike Parts.