2019 Beta 390 RR Race Edition Dirt Bike Torque Specs

Shop parts for a 2019 Beta 390 RR Race Edition Dirt Bike.

The 2019 Beta 390 RR Race Edition gains improved clutch feel and ergonomic updates alongside the competition-grade equipment. The 389cc liquid-cooled DOHC four-valve single with EFI and six-speed gearbox continues to deliver the mid-displacement power that makes the 390 a versatile choice for competitive enduro racing. Improved clutch engagement is particularly valuable in the Race Edition — competition riders depend on precise clutch control for tight section navigation, and the updated feel provides more consistent modulation under race pressure. The chrome-moly steel frame, KYB fork, and Sachs shock maintain the proven chassis. Torque discipline across every system ensures the 2019 improvements translate into better race results.

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 updated clutch materials and spring rates improve modulation but don’t change the 75 Nm hub nut specification. After any clutch service to inspect the updated components, verify the hub nut to ensure the improved engagement characteristics are preserved.

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.

Thread Locker Points

Medium-strength (blue) thread locker for the 2019 Beta 390 RR Race:

  • Rear sprocket nuts
  • All disc bolts
  • Linkage bolts
  • Subframe bolts
  • Exhaust header bolts
  • Skid plate bolts

Refresh every 10–15 hours of competition use.

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 Race Edition.

Related Shopping Categories

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Shop Penetrating Oil for a 2019 Beta 390 RR Race Edition 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.