Back Roller Classic 40L 810C OMM also made the mounting

OMM also made the mounting hole

Saves up to 8w

• 22/32/42T – 175 mm Speed Compatibility 8-speed Crank Arm Material Forged aluminum alloy Chainring Material Steel composite Spindle Interface Square taper (JIS) Recommended BB UN300 (122

Stamped titanium back plates

Such a large footprint allows you to ride at very low pressure

Back Roller Classic 40L 810C OMM also made the mountingDescription Ortlieb Back Roller Classic panniers are the benchmark for waterproof rear rack storage. Built with durable polyester fabric and fully welded seams, they deliver reliable protection for commuting, touring, and bikepacking in all weather conditions. The roll top closure keeps gear dry, while the QL2. 1 mounting system allows fast, secure attachment to most rear racks. With generous capacity and proven durability, Back Roller Classic