🚴♂️ Ride taller, ride smarter — the seatpost that fits your ambition!
The UPANBIKE Bike Seat Post is a 17.7-inch (450mm) extra-long aluminum alloy replacement designed to fit bike frames with seatpost diameters ranging from 25.4mm to 31.6mm. Its slightly undersized diameter ensures a secure fit, while the adjustable clamp allows precise saddle tilt customization, making it ideal for taller riders seeking enhanced comfort and performance across mountain, road, and universal bikes.
| Manufacturer | UPANTECH |
| UPC | 761560662052 |
| Item Package Dimensions L x W x H | 19.25 x 2.8 x 2.6 inches |
| Package Weight | 0.45 Kilograms |
| Item Dimensions LxWxH | 1.2 x 1.2 x 17.72 inches |
| Brand Name | UPANBIKE |
| Part Number | 50-128-3 |
| Size | 30.4*450mm |
J**E
Safely raises a bicycle seat beyond the normal height range.
This product allowed me to elevate the bicycle seat to a usable height. With the original seatpost, the bicycle had been very uncomfortable. There is plenty of post left in the socket to ensure strength and integrity.
E**T
Works great for tall rider of Rad City 5
At 6'6" my son is what I would call a Tall Lad(tm). The seat post on his Rad Power Bikes Rad City 5 + came as 27.2 by 400mm, which at full extension was just barely enough. With this post being 50mm longer, it puts more post in the downtube, reducing the chances of him breaking it.as an added bonus, there are numbered lines on this one so it's easy for him to return it to an exact setting.Solid, easy to install, five stars.
D**.
es como lo publican
buenisima calidad!!
J**R
So Far So Good 😊
I wanted to ride my short spouse’s E- bike and this did the trick.Note: Most posts have 2 bolts to attach the seat…but this has only one. I was a bit leery, but this lightweight post seams fine with the one bolt. I also was able to adjust the seat angle to my liking.YMMV & I’ll update this post if I find a problem
A**S
Good: limited angle adjustment for Rad e-bike
This is an ok quality seat post, at this price it’s what you expect on mid range bike. If you are buying this for your Rad EBike then read on. The seat tube angle on my Rad is less vertical then my other bikes. If you like to ride with seat angle horizontal or nose down this seat post may not be for you. I was barely able to get my seat horizontal. Other wise it’s affordable long seat post.
N**N
Works for tall guy on Rad Rover 6+
I am 6’6” and purchased rad rover 6+. This worked to give me the needed height. Very happy with this product.
S**Y
Excellent
Works as expected...
G**N
Great seat post for my new E-Bike!
The bike I bought only comes in a sightly smaller frame than I really need, but this seat post saved the day. The stock post was about 2" too short for my legs when properly fitting the bike, but this replacement post has length to spare. Well made and decently thick, so I expect no strength issues.
Trustpilot
1 month ago
1 week ago
