ALTA 700C Black Steel Bicycle Fork 1" Threaded Caliper Brake Rigid –

700C Steel Fork 1" Threaded (Model 309) – Black – Caliper Brake – Alta

• Wheel Size Compatibility:

  • Designed for 700C wheels (ISO 622mm bead seat diameter)

  • Standard size for road bikes, touring bikes, commuters, and hybrids

• Steerer Tube:

  • Type: Threaded

  • Diameter (ID): 1 inch (22.2mm ID) – fits standard 1" threaded headsets

  • Length: 250mm

    • Threaded Section: 150mm – provides extra threading for use with tall head tubes or spacers

  • Compatible Crown Race: ~26.4mm

• Material:

  • High-tensile steel construction – strong, durable, and suited for long-term use

  • Heavier than alloy but ideal for commuting, touring, and city riding

  • Built to handle road stress and potholes better than lightweight aluminum forks

• Brake Mount Type:

  • Caliper brake only – center-mount hole for side-pull or center-pull caliper brakes

  • Not compatible with V-brakes, cantilever brakes, or disc brakes

• Dropouts / Axle Compatibility:

  • Dropout Type: Standard open dropouts

  • Axle Size: 3/8" (9.5mm) – fits standard quick-release or bolt-on front hubs

  • Hub Spacing: 100mm (standard for 700C front wheels)

• Fork Design / Geometry:

  • Rigid, straight-blade design – offers precise handling and a classic look

  • Slight fork rake for improved steering control

  • Smooth fork crown with brake bolt hole – clean fit for classic road frames

• Finish / Appearance:

  • Black painted finish – low-profile, modern, and rust-resistant

  • Matte to semi-gloss depending on batch

• Weight (Approximate):

  • 2.20lb

Alta

• Trusted brand known for affordable and reliable bicycle components

• Especially popular in vintage rebuilds, commuter projects, and custom builds

• Classic or vintage 700C road bikes with 1" threaded headsets

• Older touring, hybrid, or commuter bikes using caliper brakes

• Custom city bikes or fixie/single-speed builds using rigid forks

• Replacement fork for steel-frame bikes from the 1970s–2000s

• Frames with:

• Disc brakes

• Cantilever or V-brake bosses

• 1-1/8" threadless headsets

• Suspension forks

• 650B, 26", 27.5", or 29" wheels