18.1417 ProX Inner Clutch Hub for Honda CRF450R CRF 450R 2017-2020

Inner Clutch Hub for Honda CRF450R

This ProX inner clutch hub replaces the worn center hub in the clutch pack for Honda CRF450R models from 2017 through 2020, restoring proper clutch plate alignment and engagement, and is cross-referenced as part 18.1417.

Overview

The ProX inner clutch hub for Honda CRF450R is a direct replacement component for the clutch basket assembly, giving the friction and steel plates a true surface to ride on. This inner clutch hub for Honda CRF450R is built to hold up under repeated clutch dumps, heat cycling, and the heavy loads of motocross and off-road riding. Riders rebuilding a slipping or notching clutch will find this inner clutch hub for Honda CRF450R a practical, no-fuss replacement.

Built For Performance

• Machined hub body sized to accept the stock CRF450R clutch plate stack
• Hardened surface treatment to resist notching from repeated plate contact
• Balanced construction to keep the clutch pack spinning true at high rpm
• Cross-referenced to part number 18.1417 for easy verification
• Designed as a drop-in replacement for the factory inner hub
• Built to handle the torque loads of a 450cc motocross engine

Fits These Machines

• for Honda CRF450R 2017
• for Honda CRF450R 2018
• for Honda CRF450R 2019
• for Honda CRF450R 2020

On-The-Job Use

• Clutch rebuilds on CRF450R motocross bikes
• Replacing a notched or grooved factory inner hub
• Refreshing the clutch during a top-end or engine service
• Track bikes used for motocross and supercross-style riding
• Off-road and trail riding where clutch abuse is common

Specs At A Glance

Good To Know

Q: Does this replace the whole clutch basket? A: No, this is the inner clutch hub only, which centers and drives the clutch plates, and it is a separate part from the outer basket. Q: Will it fit my specific CRF450R? A: It is listed for 2017 through 2020 CRF450R models, but confirming your model year and serial number before ordering is always the safest step.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.