Deda Trentacinque 35 Stem

The Deda Trentacinque 35 Stem was built alongside Deda's 35mm handlebar standard — not as an afterthought, but as a purpose-matched companion. The name says it plainly: trentacinque is Italian for 35, and the stem is sized and engineered to take full advantage of that larger clamp diameter. 3D-forged from 2014 aluminium alloy, it delivers a stiffer, more direct connection between your hands and the front wheel than a conventional 31.8mm setup can offer.

The extension is proportionally oversized to reinforce that stiffness at the bar clamp, and the 40mm steerer clamp locks to a standard 1-1/8" fork with two titanium bolts. Four more titanium screws secure the faceplate — titanium hardware throughout keeps the weight in check without compromising clamping integrity. The stem runs at an 82-degree angle, and the black anodized finish is clean and durable. At 136g in the 110mm length, it sits well within the expected range for an aluminium performance stem of this spec.

Deda Trentacinque 35 Stem Specs at a Glance

• Bar clamp diameter: 35mm
• Steerer clamp: 1-1/8" (40mm tall)
• Stem angle: 82 degrees
• Hardware: Titanium faceplate and steerer bolts
• Available lengths: 90, 100, 110, 120, 130, 140mm
• Weight: 136g (110mm, black anodized)