copy of GUIDON vélo course 3ttt 405-21.8 mm vintage bike eroica

The 21.8 mm stem sleeve anchored the racing cockpits of a bygone era, long before oversized clamps took over. This 3TTT drop bar measures 405 mm centre-to-centre and stays true to that pre-oversize norm. Its classic bend suits a committed on-the-drops riding posture – ideal for period-correct builds and participants in L'Eroica events.

The 21.8 mm Clamp

This dimension was the Italian racing norm, locking seamlessly into quill stems from Cinelli, ITM, and 3TTT. No adaptors, no fuss. The 405 mm width places the hands naturally for a vintage race position, narrower than modern ergo bars but with a direct road feel that collectors prize.

Finish and Honest Wear

Straight from our shelves, this handlebar has never been refinished. The photos are the definitive record of its condition – expect light scuffs from routing, minor fading of the anodised surface, and the sort of garage marks that accumulate over decades. No structural flaws are evident, but the images tell the full story.

For a broader selection of 3TTT bars, you might consider the 3TTT Mod. Competizione with 25.8 mm clamp and 400 mm width, or the 3TTT RACING TEAM SERVICE Forma SL 26x400 mm if a slightly wider clamp is needed.