Competitors and efficiency are two robust traits of Lapierre: they’re what push us to go additional, to query our previous decisions, to innovate and to suggest new and higher options. That is the loopy mission that led us to utterly rethink the design and idea of the brand new Prorace.
Since 2010, Lapierre has been designing its frames in unidirectional pre-impregnated carbon fiber. For our new Prorace CF frames, we now have additional improved the guts of the bike: new, lighter and stronger Torayca unidirectional carbon fibers make up the body, which is constructed from greater than 300 carbon elements. Thanks to those new fibers, it’s potential to optimize the thickness of the tubes the place potential and save weight.
Carbon UD SLI
This new stage of carbon know-how, known as UD SLI, is now the very best stage of Lapierre’s carbon vary. Due to our UD SLI building, our composite engineers have been in a position to optimise the rear triangle by taking part in on each the lateral and vertical stiffness of the asymmetrical chainstays, but additionally the pliability of the seatstays to realize traction and considerably enhance consolation.
On the Prorace we now have developed two ranges of carbon lay-up. The UD SLI Workforce model which, by means of using extra HM and VHM high quality unidirectional fibre plies, is even lighter, extra responsive and with an enhanced weight/stiffness ratio.
The 3D Tubular idea has been used on our street bikes since 2015. It’s based mostly on a easy thought: dissociate the seatstays and the seat tube to enhance their flexibility over an extended size and disperse vibrations and different shocks by means of the highest tube as an alternative from of on to the seat tube.
The selection to maintain a 27.2 mm diameter seatpost amplifies the flex of the seat tube and due to this fact the consolation. Making use of the 3D Tubular idea to our semi-rigid mountain bike made sense to :
- Save weight
- Simplify the carbon design
- Give extra freedom to the seatstays bettering consolation
- Give extra flex to the seat tube
The wants of the riders, the evolution of the programs with each sooner and extra technical downhill circuits, impose decisions in geometry. Small modifications to nearly each a part of the body remodel the bike and make an actual distinction. Due to our cautious decisions, 4 body sizes are sufficient to satisfy the necessities of nearly all of mountain bikers.
With out being radical or excessive, the geometry of the brand new Prorace is pure racing bike with 7 main modifications:
- Shorter chainstays (-8 mm)
- High tube and attain barely longer (evolving in response to dimension) from 20 to 22 mm
- Seat angle steepened by 1° on all sizes
- Head angle relaxed
- Decrease stack for a decrease centre of gravity
- 10-40mm shorter seat tube from S to XL with elevated sloping
To be taught extra concerning the Prorace CF, please go to www.lapierrebikes.com