Suspension Parts for YAMAHA YZ125 2012 – Shocks, Forks & Upgrades

Discover suspension parts guaranteed to fit the 2012 YAMAHA YZ125. 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 2012 YAMAHA YZ125.

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

0.4

Stock Shock Spring Rate

4.6

Bike Type

MX

Ideal Rider Weight

75 kg

Engine Specifications

2 Stroke Engine 125 cc

FORKS INFO

Fork Manufacturer

KYB 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 2.5
Fork Oil Level
350cc mm
Oil Quanity
2 Litres

Fork Spring Information

Standard Preload
8 mm

Fork Comments

Check floating piston for cracking

SHOCKS INFO

Shock Manufacturer

KYB
46 mm ID

Shock Dimensions

Nitrogen Pressure
142 psi
Shock Length (Eye to Eye)
494 mm
Shock Shaft Outer Diameter
18 mm
Standard Sag
103 mm
Shaft Nut Torque
25 ft-lbs (34 NM)
Shock Oil
2.5 Weight
Standard Preload
24

Shock Features

Non-rebuildable
No

Fitment-Matched Suspension Parts by Category

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All Fitment-Matched Suspension Parts

Browse All 242 Products for YAMAHA YZ125 2012
XTRIG

Xtrig Triple Clamp Rocs Pro YZ125 15-25

Adjustable offset
(SKU: 40201007)
Colour:   X-Trig Brown
Offset (mm):   23-25
$925.00
Special Order
2-3 Weeks if in stock at Xtrig Germany. If nil stock in Germany, we will give you an ETA.



Ohlins

Ohlins DMX0204 TTX Flow DV Shock Rear for Yamaha YZ 125, YZ 250

Ohlins Suspension - Engineered for Performance
(SKU: DMX0204)
Position (Front or Rear):   Rear Mono
Shock Length Eye to Eye (mm):   491.0
spring rate:   No Spring/s Supplied
Type Code:   T46PR1C2W
Stroke Metal to Metal (mm):   136.0
Product Family:   TTX Flow DV
Notes:   06310- & 06451- spring series. Preload adjuster 15000-03 fits this shock. *Replaces YA 2192*
Fitted Spring::   Sold separately, see notes.
Rec. Ohlins Oil:   01304-
$2,999.95
Special Order
Active- Available to order. 6-7 weeks if nil stock

Ohlins

Ohlins DMX1204 TTX Flow DV Shock Rear for Yamaha YZ 125, YZ 250

Ohlins Suspension - Engineered for Performance
(SKU: DMX1204)
Position (Front or Rear):   Rear Mono
Shock Length Eye to Eye (mm):   491.0
Type Code:   T46PR1C2W
Stroke Metal to Metal (mm):   136.0
Product Family:   TTX Flow DV
Notes:   06310- & 06451- spring series. Preload adjuster 15000-03 fits this shock. *Replaces DMX 0204*
Fitted Spring::   Sold separately, see notes.
Rec. Ohlins Oil:   01304-
$2,545.41
Special Order
Active- Available to order. 6-7 weeks if nil stock


Ohlins

Ohlins FCX0303 TTX 22 Fork Cartridge Front for Yamaha YZ 125, YZ 250

Discontinued - Listed for Reference Only
(SKU: FCX0303)
Position (Front or Rear):   Front cartridge
spring rate:   No Spring/s Supplied
Type Code:   T22DR1C1
Fork Length (mm):   943.0
Stroke Metal to Metal (mm):   293.0
Product Family:   TTX 22
Notes:   08437-xx spring series
Fitted Spring::   Sold separately, see notes.
Rec. Ohlins Oil:   01330-
$2,679.95
Nil Stock
Notify Me

Ohlins

Ohlins FCX1303 TTX 22 Fork Cartridge Front for Yamaha YZ 125, YZ 250

Ohlins Suspension - Engineered for Performance
(SKU: FCX1303)
Position (Front or Rear):   Front cartridge
spring rate:   No Spring/s Supplied
Type Code:   T22DR1C1
Fork Length (mm):   943.0
Stroke Metal to Metal (mm):   293.0
Product Family:   TTX 22
Notes:   08437-xx spring series *Replaces FCX 0303*
Fitted Spring::   Sold separately, see notes.
Rec. Ohlins Oil:   01330-
$2,679.95
Coming Soon
1 Arriving Prior to 26 December 2025

Ohlins

Ohlins FCX2303 TTX 22 Fork Cartridge Front for Yamaha YZ 125, YZ 250

Ohlins Suspension - Engineered for Performance
(SKU: FCX2303)
Position (Front or Rear):   Front cartridge
Type Code:   T22DR1C1
Fork Length (mm):   943.0
Stroke Metal to Metal (mm):   293.0
Product Family:   TTX 22
Notes:   08437-xx spring series*Replaces FCX 1303*
Fitted Spring::   Sold separately, see notes.
Rec. Ohlins Oil:   01330-
$2,436.32
Special Order
Active- Available to order. 6-7 weeks if nil stock