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 venture that led us to fully 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, now we have additional improved the guts of the bike: new, lighter and stronger Torayca unidirectional carbon fibers make up the body, which is created from greater than 300 carbon elements. Thanks to those new fibers, it’s attainable to optimize the thickness of the tubes the place attainable and save weight.
Carbon UD SLI
This new degree of carbon know-how, known as UD SLI, is now the very best degree 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 enjoying on each the lateral and vertical stiffness of the asymmetrical chainstays, but in addition the pliability of the seatstays to achieve traction and considerably enhance consolation.
On the Prorace now we have developed two ranges of carbon lay-up. The UD SLI Staff model which, by means of the usage of 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 a substitute 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 enhancing consolation
- Give extra flex to the seat tube
The wants of the riders, the evolution of the programs with each quicker and extra technical downhill circuits, impose decisions in geometry. Small adjustments to virtually 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 fulfill the necessities of the vast majority of mountain bikers.
With out being radical or excessive, the geometry of the brand new Prorace is pure racing bike with 7 main adjustments:
- Shorter chainstays (-8 mm)
- Prime tube and attain barely longer (evolving in accordance with 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