Syntace P6 Carbon HiFlex seatpost, Vector Carbon handlebar and Megaforce 2 stem Review

Components Pro Reviews

Syntace Megaforce 2
The new Megaforce 2 stems are designed for 31.8mm bars and 1 1/8 inch steerer diameters, have a 36mm stack height and flip-flop 6° rise. The stem has a rectangular shape for increased torsional stiffness and lower weight, and has a wide front clamp, all of which help with running uber wide 800mm bars. It is available in 30mm, 40mm, 50mm, 60mm, 70mm, and 80mm lengths, with weights between 107 to 149 grams (respectively), and retails for $150, and comes in black only with a flush mounting steerer cap.

The Megaforce 2 stems are well built, and are stout and burly beasts. The rectangular cross profile of the stem and the front clamp’s width, make for a very stiff and minimally flex-free bar and stem interface, even when using bars of 740mm and greater. I never felt any sort of movement even when really torquing the bars hard, so the new design works extremely well. I used the stem predominately with their 740mm Vector bars, and not a hint of sloppiness pulsed back to the steering. The bolts screwed in with precision, and the clamps all fit snugly when torqued down, showing the tightly engineered tolerances. I think the shorter length versions, and especially the 30mm will be greatly appreciated by a lot of riders. As always, the stems were subjected to their torturous VR-3 machine, highlighting its toughness and strength and high-quality standards.

Measured Spec (80mm length):

  • Weight – 158.2 grams
  • Length – 83mm
  • Stack height – 36mm
  • Front plate width – 48mm

Not much to say about this beast. It’s a plainly adorned stem, that does the job well, and performs its simple activity in the background, and is never noticed. Simple is, as simple does!


  • Stiff and burly
  • Excellent length coverage from uber short 30mm to longer 80mm
  • Clamping system – no slippage
  • Precise bolt interaction


  • Expensive

Overall Rating: 4 Flamin’ Chili Peppers

  • MSRP – $150
  • Visit the Syntace Megaforce 2 stem website
  • Lengths & Weights -30 mm: 107 g, 40 mm: 116 g, 50 mm: 122 g, 60 mm: 127 g, 70 mm: 138 g and 80 mm: 149 g
  • Steerer Ø – 28.6 mm (1 1/8″)
  • Steerer Height – 36 mm
  • Minimum Insert (steerer) – 30 mm
  • Handlebar Clamp Ø – 31.8 mm
  • Angle – 6° FlipFlop
  • Color -Raceblack

About the author: Brian Mullin

Brian likes to push the limits in all the sports he obsesses in, whether it's mountain biking, whitewater kayaking, skiing, or sport climbing. He takes those same strengths and a good dose of insanity to his reviewing and writing on mountain biking products, creating technical, in-depth articles. Whenever he's not on the bike, he might be found watching MotoGP racing, otherwise look for him out on the trail.

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