What Are the Torque Specs for a 2019 Honda CRF450RX?
Shop parts for a 2019 Honda CRF450RX Dirt Bike.
The 2019 Honda CRF450RX added an updated electric starter system and revised airbox design from the 2019 CRF450R to the cross-country enduro package, making starting reliability in remote enduro terrain substantially better than the 2018 model. The 449cc unicam engine, 18-inch rear wheel, enduro suspension, and larger-capacity fuel tank continued unchanged in form but benefited from the updated fuel injection mapping that improved throttle response in the sustained low-RPM conditions common to tight enduro sections.
Suspension and Chassis Fasteners
The 2019 CRF450RX’s enduro suspension is softer and more progressive than the motocross spec, which means the suspension components move through a wider range of travel over long enduro stages. The rear shock linkage bolts and swingarm pivot bearing see more combined travel hours than an equivalent CRF450R motocross machine, making linkage torque verification an important post-event maintenance step on the 2019 RX.
| Suspension & Chassis Component | Torque Spec |
|---|---|
| Upper fork clamp bolts | 20–25 Nm (15–18 ft-lb) |
| Lower fork clamp bolts | 20–25 Nm (15–18 ft-lb) |
| Handlebar clamp bolts | 20–25 Nm (15–18 ft-lb) |
| Swingarm pivot nut | 88–108 Nm (65–80 ft-lb) |
| Rear shock upper mount | 40–50 Nm (30–37 ft-lb) |
| Rear shock linkage bolts | 40–50 Nm (30–37 ft-lb) |
Engine Torque Specs
| Engine Component | Torque Spec |
|---|---|
| Spark plug | 18–22 Nm (13–16 ft-lb) |
| Oil drain plug | 29–35 Nm (21–26 ft-lb) |
| Cylinder head bolts (8mm) | 40–48 Nm (30–35 ft-lb) |
| Cylinder head bolts (6mm) | 12–15 Nm (9–11 ft-lb) |
| Cam sprocket bolt | 35–45 Nm (26–33 ft-lb) |
| Flywheel bolt | 85–100 Nm (63–74 ft-lb) |
| Clutch hub nut | 85–100 Nm (63–74 ft-lb) |
Drivetrain and Brake Fasteners
| Drivetrain Component | Torque Spec |
|---|---|
| Front axle nut | 59–69 Nm (44–51 ft-lb) |
| Rear axle nut | 88–108 Nm (65–80 ft-lb) |
| Rear sprocket nuts | 35–45 Nm (26–33 ft-lb) |
| Chain adjuster lock nuts | 22–26 Nm (16–19 ft-lb) |
| Brake Component | Torque Spec |
|---|---|
| Front caliper mounting bolts | 28–34 Nm (21–25 ft-lb) |
| Rear caliper mounting bolts | 22–26 Nm (16–19 ft-lb) |
| Front brake disc bolts | 20–24 Nm (15–17 ft-lb) |
| Rear brake disc bolts | 20–24 Nm (15–17 ft-lb) |
Related Shopping Categories
Shop Torque Wrenches for a 2019 Honda CRF450RX Dirt Bike.
Shop Wrenches and Sockets for a 2019 Honda CRF450RX Dirt Bike.
Shop Thread Locker for a 2019 Honda CRF450RX Dirt Bike.
Shop Additional Tools for a 2019 Honda CRF450RX Dirt Bike.
Shop Penetrating Oil for a 2019 Honda CRF450RX Dirt Bike.
Disclaimer: This guide is provided for general informational purposes only and is not intended to replace your motorcycle's official owner's manual. Always refer to your manufacturer's documentation for model-specific instructions, torque specifications, safety procedures, and maintenance requirements. If you are unsure or inexperienced, consider seeking assistance from a qualified mechanic or technician.
