SHIMANO FC-2450 50/34T Double 8-Speed Claris Crankset Review Posted by Pelicandy August 16, 2018 in Drivetrain Components Uses Octalink bottom bracket with recommended length being 113mm for doubles Alloy arms with steel rings Without chainguard Shimano’s Claris crankset features smooth shifting, great looks, and affordability to the 8 speed road/touring class. Random Products New Shimano Mf-tz20 6-speed Freewheel 14-28t for M... Dura-Ace Shimano FC-7900 Chainring Review Bell 9-Speed Performance Chain Review Cycle Group BOX Two BMX chainring 40T Review Cycling Outdoor Recreation Parts & Components SHIMANO Sports & Outdoors