Handlebar Stem Headspace 70mm Ext 31.8 Bar


Retro-inspired, modern functionality.

When we set out to design a stem, we knew the market already had some great options and probably didn’t need another lightweight or round stem to add into the mix.

Looking at some of the great designs from the early days of MTB, we wanted to add some of that styling into a modern version.

Updated now to a 31.8mm bar diameter and available in 1 extension – 70mm – our new HEADSPACE stem offers a new option to the crowded stem market.

Why 70mm? Well, with gravel bike geometry progressing almost daily and most modern 29er trail setups running shorter stems ( less than 90mm at least ) we think this is the sweet-spot.

  • 70mm Extension
  • Zero Degree Rise
  • 31.8mm Bar Diameter
  • Forged Alloy Construction with CNC-Machined Finish
  • 85mm Clamping Width ( ideal for Drop Handlebars and Flat or Low Riser MTB Handlebars )
  • Final Weight : 179g
  • Recommended Torque Settings : 5Nm for Steerer and Clamps

Please see our PRODUCT INFO SHEET for important details about clamping width and handlebar compatibility.

We designed the Top Clamp to be the same width as our Carbon/Alloy Aero Bolt-On and therefore allow for a unique and completely integrated front-end setup. Please see the gallery for some images of how the system looks.

check out Bikepacking.com’s first look HERE.

Out of stock

SKU: HB570 Category:


  • Diameter : 31.8mm
  • Extension : 70mm
  • Rise : 0mm
  • Stack Height : 40mm
  • Width : 85mm

Info Sheet


You may also like…

Ridefarr RidefarrST