German based carbon fiber masterminds MCFK have produced a plethora of gorgeous cycling components over the years that border on fine art. Maintaining the level of rideable art, may we present the Vorbau. A stem 100% constructed in Germany that required an immense amount of research and testing before MCFK was satisfied. Rigidity is an inherent characteristic of components manufactured from carbon fiber, however in an effort to further reduce flex between the handlebar and steer tube, MCFK chose to utilize a 270 ° handlebar clamp. When the handlebar clamp wraps around more of the bar, force from the faceplate during tightening is better displaced over a larger area, as well as flexural stress from the handlebar is displaced over a larger surface, ultimately resulting in less movement in the cockpit. By taking advantage of Ti6Al4V titanium hardware, as well as a 7075 T6 aluminum faceplate, MCFK was further able to reduce weight, and increase rigidity where it counts.
Mcfk custom color tuning kits are now available for the Vorbau stem. These kits feature color-anodized female hardware manufactured from the same lightweight and strong 7075 T6 aluminum as the stock hardware, merely anodized in a different color.
Please carefully follow the given torque specs for the MCFK Vorbau and use a torque wrench. The steer tube clamp hardware is rated at 5 Nm, while the faceplate hardware is rated at 3 Nm. The use of an assembly paste is highly recommended.
|Length||Weight (+/- 5 grams)|
|50 mm||68 grams|
|60 mm||70 grams|
|70 mm||76 grams|
|80 mm||80 grams|
|90 mm||85 grams|
|100 mm||86 grams|
|110 mm||88 grams|
|120 mm||92 grams|
|Material, Stem||UD Matte Carbon|
|Material, Faceplate||7075 T6 aluminum|
|Material, Hardware||Ti6Al4V titanium|
|Stem Angle||+/- 6° |
+/- 17 °
|Steerer Clamp Diameter||1-1/8"|
|Max Steerer Torque||5 Nm|
|Max Bar Torque||3 Nm|
|Recommended Use||MTB, Cyclocross, Road|
|Rider Weight Limit||85 kg|