Zephir Stem - 31.8mm - CLEARANCE

Shout about this product!


As flagship of our stem range the Zephir is a perfect blend of ultralightweight machining and amazing stiffness. Forged and then CNC machined, it is suitable for XC/AM use with finishing touches like the texturised inner faceplate, which grips your bars securely. Stainless bolts resist rust marks. 4 lengths and 5 degree rise (or drop!) Oversize 31.8 bar only Premium stainless steel bolts



    Ultra lightweight components suitable for cross country racing only.


    Lightweight parts suitable for off-road cross country riding.


    Tough light to mid-weight components designed for off-road trail riding.


    Sturdy components suitable for long off-road descents.


    Components optimized for aerodynamics and speed.


    Light-weight components, designed for maximum performance.;


    Reliable components designed for everyday performance.


    Sturdy components suitable for off-road, CX racing


    Strong components, designed to take heavy loads over long distances.

Tech Specs

Weight : 

  • 50mm - 115g
  • 70mm - 123g
  • 90mm - 130g
  • 110mm - 133g


  •  Rise - 5 degree
  • Stack Height - 35mm
  • Bar clamp width - 44mm
  • Bar Diameter - 31.8mm
  • Steerer diameter - 1.1/8" inch / 28.6mm
  • Bolt torque - 5Nm




  • Road Wheels

    Posted on 4 March 2016 by G. Parkes

    5 stars
    Very smooth spun and kept spinning for 8mins.Riden over 5000 Miles in the wettist weather up to 4 hrs. At a time they still spin like a dream silly prices for such a great product .
  • Bargain!

    Posted on 26 January 2016 by B. Cotter

    5 stars
    Love the look of it, goes really well with the vector 700 bar! Love the fact you can choose the faceplate and was even happier that it didn't come with the writing on the faceplate as shown in the images! Also really light and high quality!
  • Perfect

    Posted on 18 January 2016 by D. Cook

    5 stars
    Light and strong, looks perfect very happy with the product
  • Me

    Posted on 22 August 2014 by Jay Green

    5 stars
    Fantastic product, great finish, customising options are a good idea, feels sturdy and stong, looks and feels as good if not better than higher priced stems on the market, great service from superstar
  • Andrea Tedeschi

    Posted on 5 December 2013

    5 stars
    very fancy upgrade for any am bike. mine came with carbon faceplate and looks same as top notch stems form expensive brands