Model:  BETA RR390 4T Enduro EFI 2022

CALCULATE SPRING RATES

Rider Weight

This is a recommendation only please consult your manual

Ideal Fork Rate:
kg/mm ( N/mm)
Ideal Shock Rate:
kg/mm ( N/mm)

BIKE DETAILS

Bike Type

OFFROAD

Ideal Rider Weight

75 kg

Engine Specifications

4 Stroke Engine 385.6 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
No

Fork Oil

Fork Oil Weight
SAE 5
Fork Oil Level
130 mm
Oil Quanity
2 Litres

Fork Spring Information

Standard Preload
10 mm

SHOCKS INFO

Shock Manufacturer

Sachs
46 mm ID

Shock Dimensions

Nitrogen Pressure
175 psi
Shock Travel
135 mm
Shock Shaft Outer Diameter
16 mm
Standard Sag
100 mm
Shaft Nut Torque
25 ft-lbs (34 NM)
Shock Oil
5 Weight
Wheel Travel
290 mm

Shock Features

Non-rebuildable
No

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