I bought this to replace the seat post that I had as it was very heavy when riding.
I used the shim that was supplied with the post so it was a tight fit and the post wouldn't slip down when riding....skip to a few months later my frame snapped under the seat post. Cracked and snapped the frame meaning I have to now buy a whole new bike as the frame is not safe even if I were to get it welded back together, it won't be safe to ride.
So yeah, THANKS A LOT!!!! MOST EXPENSIVE SEAT POST I HAVE EVER BOUGHT, THE COST OF A NEW BIKE AND ALMOST MY LIFE..... I CERTAINLY WON'T BE BUYING FROM DECATHLON EVER AGAIN.