Blackburn's SPX-1 Ultimate Seatpost Rack is designed to carry your stuff with less complication. Built for maximum durability of 14mm aircraft grade 6061-T6 aluminum, this rack features a reflective end plug and a flasher clip. Super easy and secure 4-bolt mounting hardware attaches the rack to a bike's seatpost and allows it to be easily removed.
Carrying Capacity: 21 pounds / 10 kg
Weight: 820 grams
Fits seatposts between 22mm and 32mm in diameter