the ortlieb back roller city white saddle bags 2016 offers maximum flexibility to cyclists in the city. treat the load on both sides rear wheels or the use of a single bag: allow the picnic at the park, the sports team to the gym or weekend home purchases. a few reflectors of high brightness of material reflective 3 m scotchlite on sides of bags increase safety among the traffic. the basic equipment can also be expanded: both models have a butt plate with slits that allows you to mount the ortlieb panniers for bicycle. they are offered by separate external bags (size s), saddlebag liners (e172) shoulder straps as accessories. features: -to rack up to 16 mm tube diameter. -including reducing pieces of 8 mm and 11 mm. -can be used individually or in parts. -easy to clean. -waterproof. -sold per pair. technical specifications:-height: 42 cm. -ext. high: 32 cm. -down extension: 23 cm. -depth: 17 cm. -weight: 1520 g. -capacity: 40 l.