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⚡ Lock in your ride’s perfect position—fast, firm, flawless.
The TRIWONDER Bicycle Seat Post Clamp is a high-quality, lightweight aluminum alloy clamp designed for 31.8mm and 34.9mm seat tubes. It features a quick-release mechanism for rapid saddle height adjustments and fits most aluminum frame bikes, delivering reliable, slip-free performance with a sleek, durable finish.
| ASIN | B0924GPRXC |
| Best Sellers Rank | #27,055 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #6 in Bike Seat Clamps |
| Brand | TRIWONDER |
| Brand Name | TRIWONDER |
| Color | 02 Black |
| Customer Reviews | 4.5 4.5 out of 5 stars (1,784) |
| Date First Available | April 9, 2021 |
| Item Dimensions LxWxH | 3.15 x 5.12 x 0.79 inches |
| Item Package Dimensions L x W x H | 2.99 x 2.09 x 0.63 inches |
| Item Weight | 18 Grams |
| Item dimensions L x W x H | 3.15 x 5.12 x 0.79 inches |
| Manufacturer | TRIWONDER |
| Material | Aluminum |
| Package Weight | 0.02 Kilograms |
| Part Number | OS091112 |
| Size | 31.8mm |
| Style | Classic |
T**K
Good value & high quality
Perfect fir for 2015 Speacilized Rock Hopper. Holds tight.
A**Y
Works fine…
Just the right size to use on 30.4 seat post to keep it from slipping. I use it above the quick release clamp on the seat post frame tube for positive positioning if seat is removed and replaced.
U**E
Good clamp
good clamp no slippage
A**X
Easy install
Perfect fit, clamped down easily. Looks good. At this price point I’m very pleased.
C**E
Replaced a quick release clamp.
Quick ship. It's a clamp and it works. This secures my expensive suspension post vs a quick release clamp.
R**R
Good fit
This fit my seat post perfectly because I measured the post precisely. There is a thin lip around the inner top edge of the clamp to keep it from slipping down as its tightened - so be sure to install it with that lip on top.
P**E
Great seat post clamp
Secures the seat better and more easily than OEM.
M**S
Sizing Issues
As other reviews stated the sizing didn’t work out. I even looked up the specifications on my son’s bike to verify. Next time I will do some measuring. I’m returning this one by may try it in another size. It looks like the quality is fine but I have obviously not used it since it didn’t fit
H**R
Doet goed wat hij moet doen
D**N
Ajuste fácil calidad buena
A**L
Nickel ! Bonne matière... adaptable facilement...ravie
V**O
Qualità e misure perfette. Disegn impeccabile.
G**A
Ottimo..!
Trustpilot
1 day ago
1 week ago