The K-SPEED RB0198e Under Cowl (Pan Panel) is an under cowl from the Diabolus series designed exclusively for the 2025 and later Honda Rebel (CMX) 250/300 E-Clutch models.
This under cowl (pan panel) comes from the "Diabolus" series by the global custom brand "K-SPEED" and is exclusively designed for the Honda Rebel (CMX) 250/300 E-Clutch (2025 and later models).
Based on the traditional under cowl shape, this latest model is designed to fit the case configuration of the 2025 and later models equipped with the new "E-Clutch" mechanism. It beautifully fills the gap under the engine, creating a heavy, impactful, and low-slung style. It can be installed as-is even with the stock muffler attached.
Exclusively designed for 2025- E-Clutch models Designed to avoid interference with the E-Clutch (electronic clutch) cover, providing a perfect fit for the latest 2025 and later Rebel 250/300 models.
Compatible with stock mufflers It can be installed without interference not only with aftermarket mufflers but also with the stock exhaust pipe and muffler.
Perfect match with the Diabolus engine cover (RB0205)
When used in conjunction with the matching engine cover (RB0205) from the same series, you can further enhance the integration and volume around the engine area.
Compatible Models: Honda Rebel (CMX) 250 / 300 E-Clutch
Model Year Compatibility: 2025 and later (Type: 8BK-MC49, etc.)
Brand: Diabolus by K-SPEED
Part Number: RB0198 / RB0198e (Domestic Part Number: RB0198J)
Color: Black
Fixing Method: Secured using screw holes under the radiator and the included dedicated L-bracket
Installation Difficulty: ★★☆☆☆ (Intermediate: requires basic tools such as screws and a screwdriver)
2. Frequently Asked Questions (FAQ)
A. While it can be installed on older 2017–2024 models (standard clutch), this product (RB0198e) is specifically molded to match the E-Clutch case shape from 2025 onwards. The standard conventional under cowl (such as RB0176) is also available for 2024 and earlier models.
A. No, this product (RB0198 / RB0198e) is exclusively designed for the Rebel 250 / 300. It cannot be installed on the Rebel 500 or CL series because the engine shape and bracket mounting points are different.
A. No shaving or modification of the bike body is required. It is a bolt-on installation using existing screw holes under the radiator and the provided L-bracket. As the fixing position requires fine-tuning, the task is intended for intermediate users.
A. Yes, it is designed to avoid interfering with the layout of the stock muffler and exhaust pipe, so you can install it while retaining the stock muffler.
