2019 Beta 390 RR-S Dirt Bike Torque Specs
Shop parts for a 2019 Beta 390 RR-S Dirt Bike.
The 2019 Beta 390 RR-S gains improved clutch feel and ergonomic updates in the mid-displacement dual-sport. The 389cc liquid-cooled DOHC four-valve single with EFI and six-speed gearbox delivers the mid-displacement torque through DOT-compliant street equipment on the chrome-moly steel frame. The improved clutch engagement is valuable on the dual-sport — smoother modulation during low-speed trail maneuvering and more predictable engagement when pulling away from stop signs. KYB fork and Sachs shock with dual-sport settings handle mixed surface riding.
Engine Torque Values
| Fastener | Torque (Nm) | Torque (ft-lbs) |
|---|---|---|
| Spark Plug | 12 | 9 |
| Cylinder Head Bolts | 45 | 33 |
| Cylinder Base Bolts | 25 | 18 |
| Valve Cover Bolts | 10 | 7 |
| Cam Sprocket Bolts | 12 | 9 |
| Oil Drain Plug | 20 | 15 |
| Oil Filter Cover Bolts | 10 | 7 |
| Flywheel/Rotor Nut | 75 | 55 |
| Clutch Hub Nut | 75 | 55 |
The improved clutch materials and spring rates change engagement feel but maintain the 75 Nm hub nut specification. After inspecting the updated clutch components, verify hub nut torque to preserve the improved modulation.
Chassis & Suspension
| Fastener | Torque (Nm) | Torque (ft-lbs) |
|---|---|---|
| Swingarm Pivot Bolt | 70 | 52 |
| Lower Triple Clamp Pinch Bolts | 12 | 9 |
| Upper Triple Clamp Pinch Bolts | 20 | 15 |
| Handlebar Clamp Bolts | 15 | 11 |
| Shock Upper Mount | 50 | 37 |
| Shock Lower Mount | 50 | 37 |
| Linkage Bolts | 40 | 30 |
| Subframe Bolts | 25 | 18 |
| Engine Mount Bolts | 45 | 33 |
Drivetrain & Wheels
| Fastener | Torque (Nm) | Torque (ft-lbs) |
|---|---|---|
| Front Axle Nut | 50 | 37 |
| Rear Axle Nut | 100 | 74 |
| Front Sprocket Bolt | 50 | 37 |
| Rear Sprocket Nuts | 30 | 22 |
| Chain Adjuster Lock Nuts | 18 | 13 |
Brakes
| Fastener | Torque (Nm) | Torque (ft-lbs) |
|---|---|---|
| Front Caliper Bolts | 30 | 22 |
| Rear Caliper Bolts | 25 | 18 |
| Front Disc Bolts | 10 | 7 |
| Rear Disc Bolts | 10 | 7 |
| Front Master Cylinder Clamp | 10 | 7 |
| Rear Master Cylinder Mount | 10 | 7 |
Dry vs. Wet Torque
Oil drain plug: always wet; reduce 15–20% with sealant. All other values assume dry threads.
Thread Locker Points
Medium-strength (blue) thread locker for the 2019 Beta 390 RR-S:
- Rear sprocket nuts
- All disc bolts
- Linkage bolts
- Subframe bolts
- Exhaust header bolts
- Mirror mount bolts
- Lighting bracket bolts
Torque Wrench Selection
A 3/8-inch drive click-type for 20–100 Nm and a 1/4-inch drive for 10–12 Nm hardware. Two drive sizes for the improved 390cc dual-sport.
Related Shopping Categories
Shop Torque Wrenches for a 2019 Beta 390 RR-S Dirt Bike.
Shop Wrenches and Sockets for a 2019 Beta 390 RR-S Dirt Bike.
Shop Thread Locker for a 2019 Beta 390 RR-S Dirt Bike.
Shop Additional Tools for a 2019 Beta 390 RR-S Dirt Bike.
Shop Penetrating Oil for a 2019 Beta 390 RR-S 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.
