How do I measure the quill stem size my bike needs?

Measure the internal diameter of your fork steerer tube with a calliper. Most vintage road bikes take a 22.2 mm quill; a 22.0 mm reading signals a 22.2 mm stem.

What is the difference between a quill stem and a modern threadless stem?

A quill stem inserts into a threaded fork steerer and expands via a wedge. A threadless stem clamps around the outside of a threadless steerer tube.

Can I use a modern 31.8 mm handlebar with a vintage quill stem?

Most vintage quill stems clamp 25.4 mm or 26.0 mm bars. You would need a shim or a replacement stem, which would alter the period appearance.

Which brands of vintage stems are most desirable?

Prominent makers include 3TTT, ITM, Cinelli, Philippe, and Atax. They furnished original equipment on many classic European road and touring bicycles.

How do I know the clamp diameter for my handlebar?

Measure the centre section of the handlebar where it mounts. Common sizes are 25.4 mm, 26.0 mm, and occasionally 25.8 mm. A calliper gives the definitive value.

Vintage Quill Stem Guide: 22.2 & 25.4mm

Steel Stem 22-25.4 mm Vintage Bicycle PO14

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Vintage PO14 steel stem, 22mm steerer and 25.4mm clamp. Photos are part of the description. Shows slight oxidation.

€7.00

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Out-of-Stock

PHILIPPE 45mm quill stem side view 22mm steerer 25mm clamp no oxidation

Brand: Philippe

PHILIPPE 22-25-45 mm Vintage Bicycle Stem Eroica PO22

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PHILIPPE 22-25-45mm quill stem in clean condition, free of oxidation. The photos form an integral part of the description.

€19.00

Out-of-Stock

Brand: MAVIC

MAVIC Stem 21.9mm 26.2mm Clamp 100mm Reach PEUGEOT PX10 MERCIER Vintage

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€80.00

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Brand: 3TTT

3TTT RECORD Quill Stem 22.2mm Clamp 25mm Reach 115mm Rare Vintage

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€79.00

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PHILIPPE stem 100mm 25.4mm 22.2mm Peugeot PX PY10 side view

Brand: Philippe

PHILIPPE Stem for Peugeot PX/PY10 100mm / 25.4mm / 22.2mm Vintage

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PHILIPPE quill stem with 100 mm reach, 25.4 mm bar clamp diameter, and 22.2 mm quill. A period-correct part for Peugeot PX/PY10 assemblies. The photos form an integral part of the description.

€39.00

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Brand: 3TTT

Vintage 3TTT bicycle stem 70mm 25.4mm 22.2mm Made in Italy Eroica

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€21.25

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Brand: Philippe

PHILIPPE Vintage Stem Peugeot 95mm / 25.2mm / 22mm

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€29.00

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Brand: Philippe

PHILIPPE Peugeot Touring Stem 80mm / 25.4mm / 22mm Vintage

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€35.00

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AVA stem Peugeot PX10 80mm 25.4mm 22mm side view

Brand: AVA

AVA Stem for Peugeot PX10 80mm / 25.4mm / 22mm Vintage 1960s Road Bike

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AVA stem for Peugeot PX10, 80mm reach, 25.4mm / 22mm diameters from the 1960s. A period-correct part for a precise road bike build.

€43.00

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Out-of-Stock

PIVO 65mm stem 22mm quill 25mm clamp front view

Brand: PIVO

PIVO Stem 22-25 65 mm Vintage Randonneur Bike Eroica PO15

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PIVO alloy stem with 65 mm reach, 22 mm quill and 25 mm clamp, taken from a vintage touring bike. Photos form part of the description. Minor cosmetic wear consistent with age.

€15.00