M-Wave Seatpost Clamp with Rack Attachment Points

Philippe Kada: Le concept est géniale pour pouvoir monter des choses quand notre vélo n'a pas de fixations prévues ! Par contre le collier ne rentrait pas sur le tube de selle du vélo...
J'ai pourtant vérifié que j'avais bien le même diamètre de 28.6 mm et les avis que j'avais vu m'avaient plutôt rassurés. Je ne sais pas qui a faux mais ce serait bien d'indiquer clairement dans les images quel diamètre fait combien.
Le collier rentrait dans mon tube de la selle sauf le diamètre qui fait butée. J'ai donc dû le limer et fixer ce collier sur le tube de la selle, en gardant donc mon collier de serrage de base...

France on Dec 10, 2023

Diddi: Die Sattelklemme ist sehr gut für die nachträgliche Anbringung eines Gepäckträgers geeignet. Material und Qualität sind gut.

Germany on Oct 08, 2023

lowcountry cyclist: Works great to keep my rack in place

United States on Sep 24, 2023

Client d'Amazon: Se monte à la place du collier existant, donc le diamètre indiqué est bien celui du cadre et pas celui du tube de selle.

France on Aug 21, 2023

Branden Smith: This does exactly what I wanted to do. It's strong and fit perfectly. I saw some bad reviews about people feeling like they didn't get the proper size. Please be aware that your seatpost size IS NOT the size to get for this clamp. If you can't find your seatpost clamp size online, contact the manufacturer to ask. My seatpost is something like 27.6mm, but the clamp I needed to get was 31.8mm. As soon as I got it in the mail I checked the size and it was a perfect fit. The only other thing to consider is if your bike frame is designed and rated to handle the abuse of a rear rack and cargo. Sometimes the bike doesn't have the eyelets because it's not meant to carry cargo, so if you're not sure, contact your bike manufacturer to ask. Trek was happy to help me, and it only took a out 5 minutes to get all the info I needed to feel safe getting this and putting a rack on.

In case anyone is wondering, I put this on a 2023 Trek FX Sport 6, which is a full carbon fiber frame hybrid bike that is meant to handle moderate gravel and trails. It has eyelets lower on the frame near the cassette for a rack but not on the frame near the seatpost where you'd usually have...

United States on Jun 23, 2023

Humble Handyman: It is enhanced version of my 28.6 mm clamp for my Electra cruiser bike.
The quality looks good and functionally it did not give me any problems, so far.
Besides holding the bike seat, I hope it would ease the installation of the bike cargo rack - that was the real reason for replacement of the old clamp. Wish me luck with that project; if I succeed - I'll update this post.

United States on Oct 02, 2022

BERNASQUE: trés bien

France on Apr 14, 2021

Khalid Eldabbagh: Perfect fit. Solid. make sure to have the correct metal frame diameter

Canada on Aug 18, 2020

Helderberg Complainer: Useful and simple solution to attaching a rear rack to the frame of a bike that was not designed for one. You need to measure the outside diameter of the frame tube into which the seat post is inserted. This replaces your existing seat tube clamp. Once you understand that, its easy to buy the right size and install in a minute or two.

United States on Sep 25, 2019

D Runner: This is a very high quality part that I wanted to use to mount a bike rack to the seat post of my bike. I must have measured wrong because this part was too big for the bike post. Still, this is a very high quality part if it will fit your post. Looks like it would be very durable.

United States on Aug 28, 2017