OG-EVKIN HB-1300 Carbon Road Bike Integrated Handlebar OD2 28.6/31.8mm Handlebars For Road Race Bicycles Handle Bar Bicycle Part - AliExpress 18

The reviewer mentions the OG-EVKIN HB-1300 Carbon Road Bike Integrated Handlebar as part of the build. They state that OG-EVKIN sent them these handlebars for free, noting they would normally cost around 120 quid. They highlight that these are a fully carbon integrated bar and stem, which allow for internal cable routing and have provisions for mounting a computer underneath. The reviewer contrasts these with cheaper carbon handlebars they have used in the past, which developed a massive crack after just 150 miles and had to be thrown away. They note that installing these bars was very straightforward, with cable routing taking 'literally seconds,' which they describe as 'unprecedented' compared to past experiences with integrated bars that took much longer. The bars are part of what made the overall build much easier.