Suspension Parts for TRIUMPH Thunderbird 900 1999 – Shocks, Forks & Upgrades

Discover suspension parts guaranteed to fit the 1999 TRIUMPH Thunderbird 900. Every product in this category has been validated against year-specific fork and shock specifications to ensure true compatibility.
You’ll find fork components, shock parts, shims, upgrade kits, complete suspension systems, chassis components, and the tools and fluids required for accurate servicing - all aligned with the suspension setup of the 1999 TRIUMPH Thunderbird 900.

Use this page as a reliable reference when maintaining, rebuilding, or upgrading your bike’s suspension.

Bike-Specific Suspension Specifications & Setup Information

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

0.467

Stock Shock Spring Rate

12.3

Bike Type

CRUISER

Ideal Rider Weight

75 kg

Engine Specifications

4 Stroke Engine 885 cc

FORKS INFO

Fork Manufacturer

KYB Conventional 43 mm OD

Fork Dimensions

Fork Travel
140 mm
Front Sag
32 mm

Fork Features

Preload Adjuster
0 mm Range

Fork Oil

Fork Oil Weight
SAE 10
Fork Oil Level
140 mm
Oil Quanity
2

Fork Spring Information

Standard Preload
20 mm

Fork Comments

Stock cartrige bushes poorly toleranced. Suggest fitting 24-711-00 bushes x2

SHOCKS INFO

Shock Manufacturer

KYB
40 mm ID

Shock Dimensions

Shock Length (Eye to Eye)
349 mm
Shock Travel
65 mm
Shock Shaft Outer Diameter
14 mm
Standard Sag
32 mm
Shaft Nut Torque
25 ft lbs (34 NM)

Shock Comments

Non-rebuildable. Welded end.

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Browse All 19 Products for TRIUMPH Thunderbird 900 1999