Tirreno Tech: what are the wavy rimmed wheels Ineos used for the time trial?

Always looking to gain an advantage, the team unveiled an unusual wheel choice before stage eight

(Photo by Justin Setterfield/Getty Images)
(Image credit: Getty Images)

Tirreno-Adriatico drew to a conclusion with an individual time trial on Monday, with Simon Yates' emphatic performance sealing the overall in this year's race. But from a tech point of view, the biggest news was Ineos Grenadier's rather unusual wheel choice, seen under Geraint Thomas, Chris Froome and stage winner Filipo Ganna.

Whilst the rear wheel of their Pinarello Bolide TT bikes - barring Ganna - look to be an on-sponsor Pro Textreme Tubular Disc wheel, the front wheel choice is anything but. With its unusual wavy rim profile and alternate spoke pattern, it's unlike anything available to Ineos from Pro. So what is it?

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James Bracey

James Bracey's career has seen him move from geography teacher, to MBR writer, to Cycling Weekly's senior tech writer and video presenter. He possesses an in-depth knowledge of bicycle mechanics, as well as bike fit and coaching qualifications. Bracey enjoys all manner of cycling, from road to gravel and mountain biking.