Vintage steel bicycle fork 25.4x100 front profile
  • Vintage steel bicycle fork 25.4x100 front profile
  • Steerer tube and thread details of the 178mm steel fork
  • Crown race and blade construction of the vintage fork
  • Dropout alignment detail 100mm spacing steel fork
  • Side profile of the vintage steel fork legs
  • Thread close-up 25x100 on 178mm steel steerer
  • Fork blade curvature and brake mounting hole view
  • Under-crown clearance view for 700/650 tires
  • Left dropout weld and slot condition detail
  • Right dropout weld and slot condition detail
  • Steerer tube interior wall inspection view
  • Full side profile representation of the 178mm fork
  • Measurement scale showing the 150-160mm steerer length
  • Thread pitch inspection view of the vintage fork
  • Top down view of the fork crown area
  • Rear view of the fork blades showing brake caliper hole
  • Close-up of the steel material surface condition
  • Axle to crown measurement verification
  • Internal view of the fork dropouts spacing
  • Overall length measurement verification for vintage frame

Steel fork 178mm steerer for 25.4×100mm frame 700C/650B

This second-hand 178mm steel bicycle fork is engineered for 700/650 wheel sizes. Features a 25X100 thread standard with a steerer length of 150-160mm. The photos form part of the description.
€10.00
VAT included
Quantity
Last items in stock
1 Item

Description

This second-hand steel replacement fork is critical for restoring the frame alignment and handling characteristics of classic mid-century road frames or classic touring bikes. Built to withstand high-mileage road dampening, this rigid component is highly sought after by restorers seeking to retain authentic frame-builders' standards.

Restoration Value & Alignment Integrity

Finding a steel fork with correct threading and crown clearances is a frequent challenge for vintage rebuilds. This unit features a robust crown design, making it a reliable choice to get your classic build back on the tarmac. When assembling your retro frame, you may also need a classic cockpit setup; discover our Vintage Steel Handlebar 25.2 mm to maintain matching material profiles. If your project requires slightly different dimensions, we also stock the Fourche en acier 25x100 166mm for alternative frame tolerances.

Technical Specifications

  • Thread (fork): 25X100
  • Fork steerer (in mm): 150 -160

Please note that this is a pre-owned component. Minor cosmetic blemishes from storage and previous use may be present. The detailed photos provide a clear visual record of the physical condition and mechanical state of this item.


FAQ

What thread standard does this steel fork use?

This vintage steel fork features a French standard 25X100 threading specification.

What is the exact steerer tube length?

The steerer tube measures between 150 mm and 160 mm in length.

Is this fork compatible with modern 700c wheelsets?

Yes, it is designed to fit classic 700c and 650b wheel standards with 100mm hub spacing.

Product Details
1 Item
Used

Data sheet

Thread (fork)
25X100
Fork steerer (mm)
150 -160
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