AEST Aluminum Bike Seatpost Saddle Clamp With Quick Release Lever 31.8mm/34.9mm

This is an AEST aluminum seatpost clamp with a quick-release lever, so you can easily adjust your saddle height without any tools.

It comes in two sizes—31.8mm and 34.9mm—so check which one fits your seatpost.

It's made from aluminum, so it's lightweight but sturdy.

The clamp works on pretty much any bike type: mountain, road, BMX, cruiser, electric, you name it.

It's universal, so if you're building a bike or just need a replacement, this one's got you covered.

Brand new, comes with a 1-year warranty, and part number 563811.

Easy install, solid hold, and that quick-release lever is super handy.