






🚴♂️ Lock in comfort, ride with confidence!
The ONIPAX BIKE Seat Clamp is a durable, metal clamp designed for standard rail saddles with a precise 7/8" inside diameter. Featuring a classic, reliable design made in Taiwan, it ensures a secure, tilt-free saddle fit. Packaged minimally to reduce waste, this 150-gram clamp offers easy installation and long-lasting performance for cycling enthusiasts.

















| Brand | ONIPAX |
| Color | Black |
| Item Weight | 150 Grams |
| Item dimensions L x W x H | 3.94 x 3.94 x 1.38 inches |
| Material | Metal |
| Style | Seat Clamp |
S**N
Great product - definitely recommend them
Saved our riding seats. These are great. Great quality, fit, and ease to install. And they don't tilt like others. Meaning, once you have them in the spot you want, they're solid.
N**F
Perfect replacement - be sure to watch installation video!
I was adjusting my super old saddle clamp on my 80s road bike and the bolt snapped. Fortunately this seemed to be a correct replacement. I didn't realize there was an installation video on the product page, but I eventually figured it out on my own - be sure to watch the video to save you a few minutes of confusion!
U**C
Fix Peloton seat
Used this to replace a seat clamp on Peloton bike that had worn out. It’s a right fit, but once installed, it’s really solid.
L**S
Presilla cojín bicicleta
Excelente calidad
D**H
Needed adjustment
I ordered this as a replacement for an old/stripped one. It works great and I'm very happy with the price. I did have one problem - when I went to place it on the pole it was too snug. At first I thought I'd ordered the wrong piece since I really don't know much about bicycles but I measured my pole and it was the standard 7/8" pole. I ended up taking a pair of needle-nose pliers, putting them inside the cylinder and opening them to stretch it out a little. I'm honestly not sure if my pole is slightly too large or if the clamp was slightly too small but it's working great now. Very happy with the purchase.
G**.
Onipax Bike Seat Clamp
Had to replace a very old seat (non-rail type) on an old bike. I had a spare rail-type seat but need the clamp for it so ordered the Onipax. Like another reviewer, I found the Onipax a bit too big in diameter for my standard 7/8" post so just squeezed it close just a bit with a vice grip. I put a small piece of cardboard between the vice grip and clamp so as not to damage it. From then on, the installation went quick. Good product for a very good price.
D**N
It’s OK if it’s a right size
I suppose it would be OK if I needed it, but it was the same thing I had on my bike seat before just didn’t fit the adapter for the seat to make it lower
S**E
Quality part at a great price
Just what I needed. High quality & thick metal part. Original part on my e-trike was cheaper metal & stripped out in 9 months. Easy to install even for an old lady like me. Now my seat does not slip & need adjustment every day when I ride. Absolutely will use this brand again when I need more parts in the future.
Trustpilot
2 weeks ago
1 month ago