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Specifications

  • Wheel Size: 700c
  • Compatible Tire Width: 30-43mm
  • Valve Type: Presta
  • Valve Length: 40mm
  • Material: Butyl rubber
  • Tube Type: Standard

FAQ

What is the difference between 40mm and 48mm Presta valve stems?

The valve length affects how much stem is exposed above the rim. A 40mm stem works well with standard alloy rims up to about 25mm deep. For deeper rims, choose a 48mm or 60mm stem.

What tire widths does this tube cover?

This tube fits 700c tires from 30mm to 43mm wide, covering most gravel, cyclocross, and wide-clearance road tire setups.

Can I use a 40mm Presta valve on carbon wheels?

Only if your carbon rims are 25mm or shallower. Most carbon rims are 35mm or deeper, which requires a 48mm or 60mm valve stem to extend above the rim bed.

Best For

Gravel and road cyclists running standard alloy training wheels or box-section rims in the 700c 30-43mm tire range who want a correctly sized Presta stem without unnecessary length. The 40mm format is the cleanest match for everyday alloy wheelset builds.

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You are asking about Teravail Standard Tube - 700 x 30 - 43mm | 40mm Presta Valve

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