Quills stems come in different clamp sizes and even different quill diameters.
The most common clamp sizes are 25.4mm(SR, GB, Raleigh, ITM), 26.0mm(Mavic, 3TTT, some Nitto, some ITM), 26.4mm(most Cinelli pre-1995).
Lengths have been measured from the centre of the stem bolt to the centre of the handlebar clamp
Max Heights have been measured from the max insertion point to the top of the stem where the bolt is inserted.
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25.0MM CLAMP DIAMETER
25.4MM CLAMP DIAMETER
26.0MM CLAMP DIAMETER
OTHER STEMS & ACCESSORIES