Test 2016 All-rounder: AX Lightness Vial Evo D Di2 - AX Lightness Vial Evo D Di2 in text

So far, the Vial Evo has mainly been perceived as an extreme lightweight bike. The shape of the down tube, whose Kammtail profile saves a few watts against the wind, qualifies it for participation in this test. The 55 millimetre high carbon rims manufactured by AX Lightness do the rest. However, the real argument in favour of the bike remains its weight. 5.4 kilos is quite a lot considering the equipment with Dura-Ace Di2 and aero rims. The reliable large-series groupset and solid stiffness values guarantee problem-free riding characteristics. The riding position is more tour-orientated than race-orientated. This is complemented by the high level of suspension comfort provided by the combination of a well-flexing seatpost and voluminous tubular tyres.

CONCLUSION Extremely lightweight construction, made in Germany. Good stiffness values, top suspension comfort, comfortable riding position. Very expensive

OVERALL GRADE 1.8

Price 11,175 Euro
Weight 5.4 kilos
Info www.ax-lightness.de
available in specialised shops, construction kit

Weight frame/fork/steering bearing* 693/285/46 grammes
Frame sizes** XS, S, M, L, XL
Seat/top tube/head tube 535/565/175 mm
Stack/Reach/STR*** 581/387 mm/1.50
Drive Shimano Dura-Ace (50/34 t., BB386)
Brakes/gears Shimano Dura-Ace/ Dura-Ace Di2
Wheels/tyres/weights**** AX SRT 55/Continental Competition 25C (tubular tyre; f/h: 814/921 grams)

*Weighed weights.
**Manufacturer's specification, test size bold.
***Stack/reach projected vertical/horizontal measurement from the centre of the bottom bracket to the top of the head tube; STR (Stack to Reach): 1.36 means a very stretched, 1.60 a very upright riding position.
****Wheel weights including tyres, cassette, quick release/threaded axles and brake discs if applicable.

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