The r872 developed from our award winning ribble stealth is a high modulus t800 toray carbon fibre race bike the r872 has been designed with stiffness as a priority the main areas of flex headtube bottom bracket have been bulked up with extra layers of carbon to reduce flex and the chainstays are 40mm deep this gives a very rigid and responsive ride perfect for road racing and fast riding bb30 bottom bracket a new standard that is stiffer lighter and narrower than traditional bottom b