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3T Apto Stealth ±6° Stem - 31.8 - Stealth Black

3T Apto Stealth ±6° Stem - 31.8 - Stealth Black

Create a strong connection

A stem may not seem to be the most exciting bike part, but it is in the 3T DNA to care about it in great detail. After all, no other part has such a big effect on your riding position and thus your speed, comfort and enjoyment. With the APTO, 60 years of innovation and elegance in 3T stem design come together in a moving sculpture.


  • Bar Fly Compatible: The Apto Stealth stem is compatible with the Bar Fly Race Direct GPS mount.
  • Steerer clamp: Double bolts hold the steerer securely and provide redundancy for extra safety.
  • Reverse faceplate bolts: These clean up the faceplate for a more elegant design, in particular in combination with our new drop bars.
  • Classic rubber logo: The 3D rubber logo is a nod to the iconic 3T stems of yesteryear.


  • Material: Alloy 6061
  • Steerer diameter: 28.6mm (1 1/8”)
  • Handlebar diameter: 31.8mm
  • Key size: 4mm Allen key
  • Steerer bolt torque: 5Nm
  • Faceplate bolt torque: 5Nm

Fact Sheet of 3T Apto Stealth ±6° Stem - 31.8 - Stealth Black

Product Name: 3T Apto Stealth ±6° Stem - 31.8 - Stealth Black
Manufacturer: 3T
Item Code: TTT497683
activity: Cycling
material: Aluminium
usage bikesport: Road Bike
Steerer tube Ø: 1 1/8" straight ahead, 1 1/8"-1 1/4" tapered, 1 1/8"-1 1/2" tapered, 1 1/8"-1 3/8" tapered
Handlebar Clamp Ø: 31,7 / 31,8mm
stem clamping height: 40mm
stem angle: +-6°
Model year: 2023
Collection: Full year
Color: Black
weight: 129g
Weight Source: Manufacturer
Stem version: Ahead - Flip Flop
Manufacturer page: