2018 Beta 350 RR-S Dirt Bike Torque Specs
Shop parts for a 2018 Beta 350 RR-S Dirt Bike.
The 2018 Beta 350 RR-S transitions to the redesigned chrome-moly steel frame, bringing the street-legal dual-sport four-stroke into the new chassis era. The updated frame geometry improves both on-road stability and off-road agility. The 349cc liquid-cooled DOHC four-valve single with electronic fuel injection and six-speed gearbox continues as the powerplant, now mounted in new engine positions within the redesigned frame. DOT-compliant lighting, mirrors, horn, and license plate bracket provide street legality. The KYB 48mm fork and Sachs rear shock feature dual-sport tuning for the mixed-surface demands of the RR-S. New frame, same engine, new load paths — every torque specification applies to a fundamentally different chassis structure.
Engine Hardware
| Fastener | Torque (Nm) | Torque (ft-lbs) |
|---|---|---|
| Spark Plug | 12 | 9 |
| Cylinder Head Bolts | 40 | 30 |
| 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 | 70 | 52 |
| Clutch Hub Nut | 70 | 52 |
Suspension & Chassis
| 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.
New Chassis & Highway Vibration
The redesigned frame changes load paths for both off-road impacts and on-road vibration. During the first season on the new chassis, verify engine mount and chassis pivot torque more frequently. Highway use adds sustained high-frequency vibration that the off-road models rarely experience. The new subframe attachment points carry the full street equipment load — verify subframe bolts regularly alongside mirror and lighting hardware.
Thread Locker Application
Medium-strength (blue) thread locker for the 2018 Beta 350 RR-S:
- Rear sprocket nuts
- All disc bolts
- Linkage bolts
- Subframe bolts
- Exhaust header bolts
- Mirror mount bolts
- License plate bracket hardware
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 new-chassis 350cc dual-sport.
Related Shopping Categories
Shop Torque Wrenches for a 2018 Beta 350 RR-S Dirt Bike.
Shop Wrenches and Sockets for a 2018 Beta 350 RR-S Dirt Bike.
Shop Thread Locker for a 2018 Beta 350 RR-S Dirt Bike.
Shop Additional Tools for a 2018 Beta 350 RR-S Dirt Bike.
Shop Penetrating Oil for a 2018 Beta 350 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.
