Model:  YAMAHA TT250 1989

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

Stock Fork Spring Rate

0.36

Stock Shock Spring Rate

5.3

Bike Type

TRAIL

Ideal Rider Weight

75 kg

Engine Specifications

4 Stroke Engine 250 cc

FORKS INFO

Fork Manufacturer

Showa Conventional 41 mm OD

Fork Features

Twin Chamber Fork
No

Fork Oil

Fork Oil Weight
7.5wt
Fork Oil Level
150 mm

Fork Spring Information

Spring Rate – Claimed
0.36
Standard Preload
30 mm

Fork Comments

Steel case dust wiper

SHOCKS INFO

Shock Manufacturer

Soqi
40 mm ID

Shock Dimensions

Nitrogen Pressure
175 psi
Shock Length (Eye to Eye)
403 mm
Shock Shaft Outer Diameter
12.5 mm
Standard Sag
85 mm
Shaft Nut Torque
25 ft-lbs (34 NM)
Shock Oil
5 Weight

Shock Features

Non-rebuildable
No

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