28.6 mm Seat Clamp



Made for tightening your seat post without using tools on 27.2 mm frames and seat posts.
28.6 mm quick-release seat clamp.


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CompatibilityFor 27.2 mm frames and seat posts.
Ease of useNo-tool adjustment/removal of seat post.
Durability6061 aluminium and SCM435 steel seat clamp.
Weight36 g.
Warranty2 Years
Weight36 g.
Information / Concept / Technology
Main fabric : 100.0% Aluminium


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Good quality
Used for 2 to 8 weeks
I had to purchase a replacement as my seat and seat post was stolen. Easy to install.
Doesnt fit
Used for 1 week or less
Despite saying on the Decathlon site and being told instore that this will fit the Rockrider 520 it is too small. Unfortunately my grandson has bent it out of shape trying to fit so I will now have to pay out for a larger one. Very unhappy with this situation and it has put me off using Decathlon for spare parts.
Response of the brand
Dear Sir,
I'm very sorry to read that you were misinformed regarding the diameter and suitability of this seat clamp.
Please return it to us for a refund at your earliest convenience and I will work with the b'Twin brand to make sure that the information provided on the website is accurate.
Peter Lazarus, National Cycling Manager, DECATHLON
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