For all you “lighter and faster is better” cyclists out there, the Randonneur Seat Post Rack comes in at just 17 ounces. This combo is the lightest and sleekest alternative out there to wide trunk bags and wobbly seat post connections

The TailRider Trunk Bag is fully insulated, has a huge opening, many internal pockets and a divider to keep the contents from shifting around. Waterproof zippers keep the rain out, but for longer rides the TailRider has an integrated rain cover.

A built-in expansion bellow expands for more carrying capacity when needed. Wrap it all up with lots of safety features, including a blinker light strap built right. The ultimate bicycle rack bag for short or long rides!

• Minimum Rack width required: 3.15″ or 80 mm
• Weight: 660 g / 1,46 lbs (unit)
• Volume: 8 l. / 488 cu. in. Expands to 11 l. /700 cu. in. (unit)