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Pro Vibe 7S Puzzle Clamp Stem reviews verified by reevooReevoo

Value for money
Overall rating
Scores 10.0 out of 10 based on 1 review
10 out of 10


GB Very regular cyclist
Stiff - a few grams heavier than the stock stem that it replaced (Boardman Elite alloy) but in my opinion a lot stiffer.
Looks good too!
More vibration but that's to be expected given the extra stiffness
Confirmed purchase: 12 June 2016
Published on: 26 June 2016

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  • High performance lightweight oversized alloy 7075-T6 stem as used by top professional riders
  • 3D forged 7075-T6 alloy construction increases strength and keeps the weight down
  • Innovative and secure Puzzle clamp system evenly spreads load through the clamp area whilst reducing stem weight
  • The Gapless puzzle clamps interlocking design makes side movement loading impossible where traditional top bolts would be under high stress
  • Wide bolt spacing and forged alloy faceplate further secures and stiffens clamp interface
  • Triangular design gives optimal stiffness to weight ratio
  • Oversized 31.8 mm clamp diameter further reduces unwanted flex under high load by increasing strength and stiffness
  • Angle: -10 degrees
  • For 1-1/8 inch diameter steerer tubes
  • Average weight 120 grams for 110 mm length