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Bike Seat Post Clamp 31.8mm 34.9mm Aluminum Alloy Seat Tube Clip Bicycle Quick Release Seatpost for Mountain Tube Bike, Black

4.2 4.2 out of 5 stars 381 ratings

Price: $6.99 Free Returns on some sizes and colors

Material Metal
Brand Three BY
Color 31.8-black
Style Ergonomic
Manufacturer Three BY

About this item

  • CONVENIENT: Operation is smooth and easy,easy to install and use, Seat clamp with extra long quick release lever for added clamping force,is great for quick and simple adjustments. .You can adjust your bike seat anytime, anywhere.
  • High quality material:Aluminum alloy, anti-oxidation,the finish is anodized and has somewhat of a matte appearance,durable.Lightweight,Solid,Two strong sleek retaining bolts ensure it to be double sturdy and firm.
  • Good Design:They have a machined out hollow lever design and a low profile sleek retaining bolt.Ergonomic design,Extended lever, more efficient and comfortable.
  • How to choose:Diameter 31.8mm clamp suits for Frame Seat Tube 30.2mm-32.1mm
  • TIPS:Suitable for all kinds of bike,mountain bike ,folding bike,track bike,fixedgear,road bike and so on.Please double measure your outer seat post diameter to get the right size.

Product Description

Want your two-wheel pony to piss excellence?
Yes then install ultra-engineered Quick Release Clamp.
Hope machines these to drop every possible gram and provide plenty of leverage
then tops it off with a vibrant anodized finish that will have your pony rocking a racehorse stream of brilliance.

Ergonomic design.Extended lever, more efficient and comfortable.
These aluminium clamps are fantastic value and light weight due to the CNC machined design.
Seat clamp with extra long quick release lever for added clamping force.is great for quick and simple adjustments.
They have a machined out hollow lever design and a low profile sleek retaining bolt, which means they are light and solidly made.
Use:Suitable for all kinds of bike,mountain bike ,folding bike,track bike,fixedgear,road bike and so on.

Material: Aluminium alloy
Color: Black/Blue
Size: 31.8/34.9mm
Diameter 31.8mm suit for out diameter 27.2mm, 28.6mm bike seat post
34.9mm bicycle seat post clamp suit for out diameter 30.4mm 30.8mm 30.9mm 31.6mm bike seat post.


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Customer reviews

4.2 out of 5 stars
4.2 out of 5
381 global ratings

Customers say

Customers like the value, performance, and fit of the hardware clamp vise. For example, they mention it works well, is easy to adjust, and fits perfectly. That said, opinions are mixed on quality.

AI-generated from the text of customer reviews

8 customers mention6 positive2 negative

Customers like the value of the clamp vise. They mention that it works well and is cheap.

"Works good for a good price" Read more

"...positive reviews (which I purchased in the last), this one works better at a lower price." Read more

"...Unuseable. Poor QC--gave it a 1 star becuase you have to give it something." Read more

"...So, this was a cheap and useful purchase!..." Read more

7 customers mention7 positive0 negative

Customers are satisfied with the performance of the clamp vise. For example, they mention it works well, is strong, and easy to adjust for a snug fit. Some are happy with the purchase and say it gets the job done.

"Works great. There are other options with more positive reviews (which I purchased in the last), this one works better at a lower price." Read more

"Worked like a champ! Strong clamp, easy adjustment for a snug fit. Great to be able to adjust height of seat for guest riders without tools...." Read more

"Cheap, but gets the job done. Seat hasn't fallen off yet" Read more

"Works great, looks great!" Read more

5 customers mention5 positive0 negative

Customers are satisfied with the fit of the hardware clamp vise. They mention that it is a perfect fit for their son's 24" Specialized Hot Rock Mountain Bike and the right size for a seat post with a size of 27.2 mm.

"...This one was a good replacement and fit well. It feels stronger than the original" Read more

"The 31.8 mm clamp was a perfect fit for my son's 24" Specialized Hot Rock Mountain Bike." Read more

"It fit perfectly and a great value." Read more

"It worked. Just the right size for a seat post with a size of 27.2 mm...." Read more

7 customers mention3 positive4 negative

Customers have mixed opinions about the quality of the hardware clamp vise. Some mention it's a durable product, while others say it feels cheap and flimsy. They also say it'll break with time.

"This is a cheaply made plastic seat post clamp." Read more

"...again but I don't see the need in the near future as this is a durable product." Read more

"More for a thinner bicycle.Feels more like plastic, I dont think it's aluminum, feels more plastic than metal...." Read more

"...This one was a good replacement and fit well. It feels stronger than the original" Read more

Don't waste your time.
1 Star
Don't waste your time.
Do not buy. Absolutely terrible quality. Broke in half while being tightened for the first time during installation. I'm glad this happened before I had a chance to ride with it....
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Top reviews from the United States

Reviewed in the United States on May 14, 2024
Size: 34.9mmVerified Purchase
Reviewed in the United States on August 1, 2021
Size: 31.8mmVerified Purchase
Reviewed in the United States on May 25, 2018
Size: 31.8mmVerified Purchase
Reviewed in the United States on August 6, 2018
Size: 31.8mmVerified Purchase
2 people found this helpful
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Reviewed in the United States on January 8, 2024
Size: 34.9mmVerified Purchase
Reviewed in the United States on November 18, 2019
Size: 31.8mmVerified Purchase
Reviewed in the United States on May 1, 2022
Size: 31.8mmVerified Purchase
Reviewed in the United States on April 26, 2022
Size: 34.9mmVerified Purchase