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🚴♂️ Elevate your ride, drop in style — control at your fingertips!
The JFOYH EXA Form 900i is a premium hydraulic dropper seatpost available in 30.9mm and 31.6mm diameters, with lengths of 345mm, 395mm, and 445mm offering 100mm to 150mm travel. Featuring a lightweight 7075 alloy construction and a 1.6-meter remote cable for effortless height adjustment during rides, it’s designed for internal cable routing frames to deliver a sleek, professional upgrade for serious cyclists.

| ASIN | B09YH576CH |
| Best Sellers Rank | #148,844 in Sporting Goods ( See Top 100 in Sporting Goods ) #141 in Bike Seat Posts |
| Bike Type | Multi-Use |
| Brand | JFOYH |
| Brand Name | JFOYH |
| Color | Diameter: 31.6mm |
| Colour | Diameter: 31.6mm |
| Customer Reviews | 4.1 out of 5 stars 274 Reviews |
| Item Diameter | 31.6 Millimeters |
| Item Dimensions W x H | 32W x 445H millimeters |
| Item Type Name | Internal Routing |
| Item Weight | 0.87 Kilograms |
| Item weight | 0.87 Kilograms |
| Manufacturer | JFOYH BIKE |
| Manufacturer Part Number | BIKE DROPPER SEATPOST |
| Material | Metal |
| Material Type | Metal |
| Model Number | Diameter: 31.6mm |
| Number of Items | 1 |
| Product dimensions | 32W x 445H millimeters |
| UPC | 774144172137 |
L**D
Good post
I've been using this dropper post for about 2 wks now and it works very well. Makes a big difference on the trails.
A**R
Buen producto.
No está fácil la instalación, pero entendiéndole queda muy bien y funciona perfectamente. Muy recomendable!
B**3
Great post for the budget minded. Highly recommend.
This dropper functions as described. Six month test has gone well as I ride mainly blue trails with the occasional black 2-3 times a week. Only thing to note is I have to slightly stand and relieve tension from post in order for it to drop easier, ie: slightly stand, engage thumb trigger, sit on post to drop. Great post for the budget minded. Highly recommend. Hope this helps. Happy shopping.
M**T
Works for 26" bike for pre-teen, first use of day a bit tight
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.
F**.
Cumple es muy básico
Que el regreso para subir no lo hace rápido y tienes que apretar la manija varias veces
Trustpilot
2 months ago
3 days ago