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BETA RR390 4T Factory 2013

Ideal Fork Rate:
kg/mm ( N/mm)
Ideal Shock Rate:
kg/mm ( N/mm)
Bike Type
OFFROAD
Ideal Rider Weight
75 kg
Engine Specifications
4 Stroke Engine 390 cc
Forks Info

Fork Manufacturer

Sachs USD 48 mm OD

Fork Dimensions

Compression Nut Torque
48 in-lb (0.56 kgf-m)
Fork Travel
300 mm

Fork Features

Twin Chamber Fork
Yes

Fork Oil

Fork Oil Weight
SAE 5
Fork Oil Level
360cc mm
Oil Quanity
2 Litres

Fork Spring Information

Standard Preload
10 mm

Shocks Info

Shock Manufacturer

Sachs
50 mm ID

Shock Dimensions

Nitrogen Pressure
175 psi
Shock Shaft Outer Diameter
16 mm
Standard Sag
100 mm
Shaft Nut Torque
25 ft-lbs (34 NM)
Shock Oil
2.5 Weight
Standard Preload
12

Shock Features

Non-rebuildable
No

Shock Comments

Replace stock piston band with WP steel band. Stock band fades. Lower rear shock

Forks Info

Fork Manufacturer

Sachs USD 48 mm OD

Fork Dimensions

Compression Nut Torque
48 in-lb (0.56 kgf-m)
Fork Travel
300 mm

Fork Features

Twin Chamber Fork
Yes

Fork Oil

Fork Oil Weight
SAE 5
Fork Oil Level
360cc mm
Oil Quanity
2 Litres

Fork Spring Information

Standard Preload
10 mm

Shocks Info

Shock Manufacturer

Sachs
50 mm ID

Shock Dimensions

Nitrogen Pressure
175 psi
Shock Shaft Outer Diameter
16 mm
Standard Sag
100 mm
Shaft Nut Torque
25 ft-lbs (34 NM)
Shock Oil
2.5 Weight
Standard Preload
12

Shock Features

Non-rebuildable
No

Shock Comments

Replace stock piston band with WP steel band. Stock band fades. Lower rear shock