Bibike Dropper Post 27.2/30.4/30.9/31.6mm x 440mm Length 125mm Travel Remote External Cable

went in quickly and works fine so far.

works great!!! a dropper is a must if you ride varying terrain

This is a "FastAce" branded dropper post, I ordered the 28.6 size (upper mount), which is a 27.2 size dropper post but also includes a '27.2 to 28.6' shim adapter to upsize it to the correct dimensions of my bikes seat tube, which worked perfectly, I would prefer to not use a shim, but I don't believe there are any true native 28.6 dropper posts since it's a very uncommon size, so not a big deal, this post is also 125 mm travel which is really great most competitors are only 90 to 110 travel for this post size.I like that this includes a remote, cable and is ready to go, however for my medium bike I found the cable to be at least 3 inches too short to mount it on the left handlebar (with enough slack to turn the bars fully), so I ended up needing to get a longer cable but install was straightforward and easy, when unscrewing the grub screw for the steel cable make sure not to lose the small ball bearing inside, the remote lever is made of plastic, and the mount is metal with a hinge so it can be removed/repositioned easily.For functionality, I think it works great, the leaver has nice resistance and spring-loaded feel, not loose or weak to press, the seat post rises up quickly, and only has a little side to side seat slop, I saw a video that someone showed it going up slowly, the one I received is pretty quick in room temp, in colder 30F temperature it does slow it down a little but so far functions fine in cold weather (I bought this for a fat bike so it will normally be used in the cold), lowering the seat post sometimes feels fine and smooth, other times it can feel a bit gritty, not sure why this happens but doesn't seem to be an issue yet, the post seems to have plenty of grease installed from the factory as I can see the thin layer buildup on the post after using it for a few rides.FastAce seems to be a real company, however I couldn't find any info for warranty or service guides, most dropper posts need some type of lower service after a while, and most are pretty similar in design, I may try contacting FastAce and see if they can provide a service manual.Overall I highly recommend, long term durability still in progress, warranty unknown, fast post rising, includes lever & cables, easy to install, works well.

Added this to a 2018 Specialized Rockhopper, size L. Installation was extremely easy. Cable was exactly the right length. Performance is extremely smooth. The post adjusts up and down almost effortlessly. Can easily be moved down in very small increments with just a quick press of the lever, or drop it all the way smoothly by pressing and holding. Very happy with this product and highly recommend it.

I bought three in total, two are still fine, but one of them after only a few rides is making a crunching/ grinding noise and will only retract if you push on the seat from the front. There's plenty of lube, it's basically new and just started doing this. It's junk now. It's past return window, so 120 bucks down the tube. Beware.

Works perfectly. If you’re looking to upgrade your old hardtail this is a no brainer.

Value for the money

Easy to install just the post doent pop when you want it it sticks badly 😢 I won'tRecommend it.

Parecía ser bueno, su instalación fue fácil su funcionamiento era correcto sin ser muy bueno, la calidad no es mala pero deja algo que desear en los materiales y desafortunadamente al poco tiempo de uso (3 meses) desafortunadamente se quebro la union del poste con el asiento sin en realidad haber hecho uso exhaustivo, pueden invertir un poco más en algo mejor y más duradero

I need this dropper cos I had a stroke and now struggle to get my bum on the saddle when setting off. This is ideal - start off low and rises once I set off. good job.

Bought one in December and find it very useful. Only problem the company won’t ship to Northern Ireland.