The CNC’d Kogel Kolossos pulley cages with outsized wheels has been racking up a number of podiums underneath Lidl-Trek on this 12 months’s Tour de France. Whereas they may be operating them on higher-end teams, the product has trickled right down to the working man’s Shimano 105 groupset now, and so they’re teasing an aero model that shields these large pulleys from the wind.
Kogel Aero Kolossos
Kogel’s (and everybody else’s) outsized pulley programs purpose to cut back drivetrain drag by decreasing the quantity of articulation every chain hyperlink goes by because it strikes and the pulleys. Bigger wheels imply much less chain hyperlink rotation, which suggests much less drag. Including ceramic bearings helps, too. Now, Kogel helps cut back wind drag additionally by partially shielding the pulley wheels and smoothing the outside floor with a structural fairing.
The Aero Kolossos mounts the 12/19-tooth pulleys on to the aero cage, which continues to be within the prototype part. They confirmed it off at Sea Otter, and so they’ve been testing it, but it surely’s nonetheless a number of months off from manufacturing.
If you need the Aero Kolossos Subsequent Degree Expertise, they’re providing choices to affix them in Texas in October to have the product put in in your bike, meet the crew, and be a part of them for rides, meals, and extra.
Kogel Kolossos for Shimano 105 R7000/7100
Designed round their normal machined aluminum cages, the Kolossos for 105 upsizes to a 12-tooth higher pulley and 19-tooth decrease, each rolling on ceramic bearings. It suits each brief (SS) and medium (GS) cages, and works on the mechanical R7000 and Di2 digital R7100 rear derailleurs.
As with most, they are saying you could want to exchange your chain so as to add a little bit of size. MSRP is $475, obtainable in Black, Gold, and Purple, plus customized ($525) that permits you to select totally different anodized colours for every a part of the cage. They arrive with a 2-year guarantee.