Lapierre Pulsium Endurance Road Bike at Interbike

Lapierre Pulsium 500 at Interbike 2014

The all-new cobble-minded Lapierre Pulsium endurance road bike was on display for an up-close look. I got the rundown and snapped a few pictures of this unique new entry into the endurance road category.

Ridden by the revered team on cobbles this year, the Pulsium aims to nail the holy grail of compliance with lateral stiffness. The mechanism is dubbed SAT (Shock Absorption Technology) and it consists of an elastomer ring that’s situated on a lower Y section just in front of the seat tube. Yes, it bears some resemblance to the decoupler on the Trek Domane, but is certainly a different approach.

The standard 27.2mm seatpost certainly plays into the compliance factor here, but the entire package with curved, slender seat stays and an optimized (and likewise curved) fork round out the SAT package.

Close-up of the SAT Elastomer on the Lapierre Pulsium 500

Layup consists of carbon fibers of 24t and 30t moduli arranged for better impact resistance and vibration absorption. Let’s not forget the Power Box technology employed here as it maintains the same lateral ¬†stiffness as the Xelius EFI race bike.

Lapierre Pulsium highlights:

  • Endurance geometry with 5mm taller head tube than Sensium
  • Shock Absorption Technology includes elastomer ring in split top tube
  • 27.2mm seatpost for smoother ride
  • Tire clearance for up to 32mm treads
  • Integrated seatpost clamp
  • Laterally as stiff as the Xelius EFI
  • Price: Four models from $6700 – $2700

The $6700 Pulsium Ultimate leaves nothing to be desired with full Shimano Dura-Ace and Mavic Cosmic SLE WTS wheels while the $2700 Pulsium 700 gets you rolling with venerable Shimano 105 and similar workhorse components. Photos are of the $3500 Pulsium 500.