Origin8Pro Force QR Seat Clamp, Black

We have replaced all of our E bike seat clamps with these because they are so easy to adjust and close. The others are sharp in your hand and very hard to compress.

I need to take my seat post off regularly, so I switched out the stock bolt clamp for this quick release one. Although most of the clamps on here seem to be made from 6061-T6 aluminum, I decided to spend a little more on this known brand over the slightly cheaper off-brands. Looks good and feels well made, it fit perfectly on my Giant Roam frame. The knob is easy to turn to adjust and once tightened enough and clamped down it holds well. I weigh 230 and it's been holding my fat butt up fine with no movement. The release arm seems a little big/long, but doesn't get in the way and makes it easy to open and close. Hopefully it holds up to my constant use. Good so far.

Installed the 31.8mm unit on a 2017 Giant Roam bicycle which did not have a quick release seat adjustment. Needed to adjust the seat to varying conditions while out on the trail.The clamp appears to be sturdy and of high quality. Haven’t had it very long but so far it works well without any issues. Installation was simple and took only a couple of minutes.Seems to be not so lightweight. Likely not suitable for pro/competition use.A bicycle seat clamp seems like a simple thing that should just work. Many simple things don’t just work these days. Glad this one does work.Recommended. Would buy again.

Fits and holds my seat post/seat in place. The lever is bigger than standard but that may be good if you need the extra size for leverage to tighten or loosen.

I am impressed and it fit perfectly on my two little girls specialized RipRock 20 bikes. I mainly bought them so I can put the adapter bar for my bike rack on easily by raising the seats. I picked this one with the large lever to make it easy for my kids to adjust the seats. Seems good and out of the way.

This clamp seems very well made. I really like the long clamp arm. I'm not able to install a dropper on my older hardtail bike, so the longer clamp arm makes it easy to unclamp and adjust the seat post quickly.

Make sure you get the exact right size. this model does have the required lip that sits at the top of the downtube.

Excellent! I like the long handle of the QR. Makes it easy to lock the seatpost. I wish that instead of a knurled knob at the other end of the QR they had one with an Allen hole. This way I could measure how much torque is applied to the screw of the QR