The motor and battery power unit is by TQ

Ergonomic shape for maximum comfort and ease of use

Medium--57-59cm

A four-bar link suspension system with a four-sided polygon design promotes superior vibration absorption

Thick padding insulates snacks and protects gear

Topeak TrunkBag EX Strap Mount Rear Rack Bag EMTB The motor and battery powerTopeak EX Trunk Bag with strap is manufactured with rigid molded panels and flexible 600 denier fabric for rigidity and water repellency. The perfect rear cargo bag that fits easy onto your rear rack. Insulated main compartment with molded EVA foam sides, top and bottom Straps onto existing rear rack Large capacity main compartment and 2 mesh side pockets 3M reflective trim Includes shoulder strap and carrying handle Elastic top bungees * Bike Baskets