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Profile view of the 173mm steel bicycle frame fork showing the fork crown and blades.
  • Profile view of the 173mm steel bicycle frame fork showing the fork crown and blades.
  • Steerer tube threads and crown race interface on the 841g vintage steel fork.
  • Front view of the 25x100mm vintage steel fork for 650 and 700 wheels.
  • Left side dropout detail of the secondhand vintage steel bicycle fork.
  • Right side dropout detail showcasing the structural eyelets and alignment.
  • Underside of the fork crown showing vintage lug details and tyre clearance.
  • Detailed measurement of the 173mm steerer tube using a precision gauge.
  • Threading condition on the 25mm diameter vintage steerer tube.
  • Overall length measurement of the vintage steel bicycle fork.
  • Fork blade alignment check from the dropout end.
  • Weight verification showing 841g on a digital workshop scale.
  • Close-up of the steel tubing texture and original vintage finish.
  • Profile of the curved fork blades designed for vintage touring bike builds.
  • Top view down the steerer tube showcasing interior tube walls.
  • Brake mounting hole detail on the vintage fork crown.
  • Right fork blade profile highlighting the rake angle.
  • Left fork blade profile illustrating vintage lugged construction.
  • Rear view of the fork crown and brake caliper mounting surface.
  • Dropout spacing measurement showing 100mm internal width.

Steel bicycle frame fork 841g 25×100 650/700 173mm R11

This secondhand steel bicycle frame fork weighs 841g and features a 25x100mm dimension with a 173mm steerer tube, compatible with 650/700 wheels. The photos form part of the description.
€11.00
VAT included
Quantity
Last items in stock
1 Item

Description

When rebuilding or preserving a classic road build or vintage touring bike, matching the exact dimensional standards of the steering column is critical to maintaining original frame geometry and handling characteristics. This secondhand steel bicycle frame fork offers an authentic solution for workshop replacements where period-correct tubing and weight profiles are required.

Key Technical Parameters & Features

Constructed from classic lugged or welded steel, this component is designed to withstand the physical demands of vintage road surfaces. The structure is weighed at exactly 841g, balancing structural rigidity with the dampening properties inherent to vintage steel alloys. The steerer tube length measures 173mm, making it suitable for small to medium-sized vintage frames.

The spacing is standardized at 25x100mm, designed to receive vintage front hubs with a 100mm over-locknut distance (OLD). It accommodates wheel diameters within the 650 and 700 range, typical for classic French road setups, city bikes, and vintage touring bike builds. Please note that the detailed photographs provided form a primary part of this description, showcasing the exact cosmetic condition, thread paths, and dropout alignment of this secondhand part.

Dimensional Compatibility

  • Steerer Tube Length: 173mm
  • Hub Spacing: 25x100mm
  • Wheel Compatibility: 650 / 700
  • Component Weight: 841g

For alternative frame sizing or different steerer configurations, you can also view our Liberia steel fork with 190mm steerer, or explore the slightly shorter 163mm steel bicycle fork designed for similar vintage standards.


FAQ

What is the precise steerer tube diameter and thread standard?

The steerer tube is designed to fit a vintage 25mm outer diameter frame standard. Please consult the high-resolution photos to verify thread pitch and crown race compatibility.

Can this fork be used on a vintage touring bike?

Yes. This fork is compatible with 650 and 700 wheel sizes, making it suitable for classic road frames and vintage touring bike setups requiring 100mm hub spacing.

Are there any physical defects or alignment issues with this secondhand fork?

This is a secondhand component with typical cosmetic signs of age. No major functional defects are reported; however, the photographs form part of the description and should be reviewed for exact condition.

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