EXA Form 900i 30.9mm/31.6mm Internal Routing Dropper Post with Lever and Cable Kit MTB/Ebike Internal Bike Seatpost 100/120/150mm Travel -345/395/445mm Length

I have a kid that's getting into Mountain Biking, and put it on a 26" XXS Specialized RockHopper. Installation went as well as could be expected. Two main issues: - On the XXS RockHopper, it has a front derailleur, so finding a good spot for the lever took a bit of trial - The seat hydraulics get stuck the first time of the day, so getting it to extend the first time took some trial. Basically, I put a skinny screwdriver through the lever so I could pull it with my right hand, held the shaft with left hand, and held the other end between my feet and tried pushing/pulling until it unlocked. The provided cable was plenty big enough (I cut off over a foot). The lever hardware seems pretty great, and I didn't feel like I was going to strip any screws or break anything. Adjusting the tightness of the cable went really well due to the two adjustment screws (plenty of tightening room). The kid isn't very strong in the thumbs yet, so the first ride of the day he has to use two hands to "unlock" the stuck piston. After that it is incredibly smooth going up and down, and his left thumb is able to push it in okay enough (it's still tough, but it'll get easier as muscles grow). Again, the seat post does seem to get 'stuck' after sitting there for a day, but then goes super smooth the rest of the day. I'm happy with the post and the installation. It seems like good quality for the price I paid. It definitely isn't as good as the one on my own bike (mine has no 'stuck' issue after prolonged periods of inactivity), but good enough for this starter bike or anyone on a budget that wants a post that will last. I'll update this if I ever hit issues.

I'll admit, my expectations were pretty low because it is cheap and from Amazon. However, so far it is working well and I'm happy. Have only ridden a handful of times, but it is smooth and moves easily even for a lighter rider. I will say the installation instructions could use a little help. It's scary when you have to start cutting cables and the instructions are only 70% clear on how to do it. But it worked, it's installed - now just hoping it lasts.

I can’t speak for the amount of time it will survive but it installed pretty easy if you have a basic know how of MTB cable installs. The cable was long enough but the housing was too short for my Large Giant Stace E+2. Goes up and down quick. Lever seems decent and it does what I need for the price I want. Can’t imagine spending $200-$300 on a dropper post would make it much better.

Product works perfect. I think negative reviews are from improper installations. Make sure when you install you don’t over tighten seat tube clamp or else it won’t go up and down as smoothly as it is supposed to, this goes for all dropper posts.

This is one of the shortest droppers you can get- or at least that I found, and it works great in my youngest Marin rift zone jr. it has an odd angled seat tube and this works perfect! Works well! Definitely grease it!! Especially for light riders. Has held up well! Good value!

At 6' 2" this has plenty ty if adjustment for me, not bad to install if you follow instructions, it occasionally doesnt operate but a 2nd press does it, ive read a new switch fixes it but it doesnt both me enough but the fix is still cheaper than other options so I like it alot!

Purchased this item back in July for the Ozark Trail Ridge Pro Max build from Berm Peak on youtube. Was hoping it would be a quality product and even looked past a few things but after today I can no longer be optimistic. First day installing on the bike the actuator lever system was not hold a firm clamp of the dropper cable and after a few attempts to correct the issue the threads stripped out. Luckily I was working on this bike with a buddy who runs bike shop and was able to pick up a Wolf Tooth lever system. ($60). Once new lever system was installed dropper post worked pretty decent other then being fairly stiff. I noticed a few weeks after installation the post would stick in the lowered position. This bike is a spare I built for fun so it has VERY LITTLE USE. Well today Oct. 20th 2024 I decided not to ride my Norco and take the old Ozark for a roll through the neighborhood and BAM seat dropper stuck in lower position and once it popped up the seat wont lock in any lowered position now. So it moves up and down with you as you move on the bike, if you sit it smashed how into the lowered position... If you try and dismount you can't keep the seat lowered for a safe dismount, this can be very dangerous if I don't replace or fix this system. Its a shame with the $60-$70 I had to spend on the Wolf Tooth actuator lever and perch - add that to the original cost of this seat dropper I could have purchased an E-Thirteen or a RaceFace... Not a happy camper. If someone knows how to contact this seller please let me know. Thank you

Once you get this installed, it does what it's supposed to. However as someone that's never seen or installed one before, I wasn't able to do it myself with the very poor quality installation instructions. Both the included instruction booklet and seller videos that it links to are overly vague and are being demonstrated with different products, at least in my case. There were non-included components shown in the instruction process that were for a completely different style of product, and the design of the trigger in the book was also completely different. Upon opening what I thought was the installation video tutorial, I found out I was watching either the wrong thing, or they just don't have a video for the specific product I had in my hands. As such I had been instructed to cut the cable sheathing in a way that destroyed my ability to be able finish the install it at all. In the end I had to take it to a local bike shop to replace the sheathing entirely. At that point, I just had them finish the install themselves, totaling me an additional $40. Additionally, I had to use a 1/16" drill bit to hollow out a hole for the cable on the metal trigger in a spot where the part was manufactured incorrectly. Before doing so, it was impossible to route the cable through its intended hole due to 2 parts being welded together slightly out of alignment. If you have no experience working on something like this, at the very least you should go in knowing it's not as easy as seems. Personally I'd advise spending a little more on a better product, but if you're experienced or at least persistent and careful, it can be made to work.

I've been using this dropper post for about 2 wks now and it works very well. Makes a big difference on the trails.

No está fácil la instalación, pero entendiéndole queda muy bien y funciona perfectamente. Muy recomendable!

Que el regreso para subir no lo hace rápido y tienes que apretar la manija varias veces

After fitting the seatpost and attaching the lever the bolt holding the clamp for the handlebars sheared off after the second use during testing.

nice and thnks