If you hanker after the performance and looks of a thoroughbred race bike but want the extra comfort of an endurance bike, take a look at the Wilier Granturismo SLR.
Wilier’s latest bike shares many of the features of the brand’s WorldTour-level race bikes, but in a package that makes fewer demands on your ride position. It also adds more comfort so you can ride longer, which is in large part thanks to Wilier’s innovative Actiflex 2.0 micro-shock absorber, which provides up to 5mm of suspension at the saddle.
Actiflex 2.0 rear shock absorber smooths out the ride
Saddle comfort is paramount for most riders, particularly those who want to take on longer rides. The Wilier Granturismo SLR’s Actiflex 2.0 active suspension system is a clever approach to increase vertical compliance without sacrificing frame stiffness or pedalling efficiency.
Actiflex 2.0 uses a four-bearing linkage between the seat stays and the top tube, which allows the two to move in the vertical plane relative to each other, without affecting the frame’s lateral rigidity. The seat tube isn’t directly connected to the seat stays, so the rider’s position doesn’t change as the rear wheel deflects.
The design includes a damper incorporated into the pivot structure. This is made of a lightweight 3D printed conformal matrix structure in higher spec bikes, or an elastomer block in lower priced builds, although the latter only adds 20g to the frame weight. Two different block densities are available, allowing riders to fine-tune the suspension to match their needs and their weight.
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The Actiflex 2.0 design is a progression from Wilier’s original Actiflex system, which was a feature of the Cento10 NDR endurance bike, which won a Eurobike Award when it was launched in 2017. The new design allows for longer seat stays than the original and also protects the pivot mechanism from rear wheel spray.
Born from Wilier’s racing pedigree
The Granturismo SLR is built with the same HUS-MOD carbon fibre with incorporated liquid crystal polymer as the Wilier 0 SLR and Filante SLR race bikes ridden by the Astana-Qazaqstan team – probably the most stylish bikes in the pro peloton. It also shares many of those bikes’ features like aero frame profiles, but offers a ride position that’s more comfortable for longer rides.
Wilier says that its tests show that despite its compliance…
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