






🚵♂️ Elevate your ride, drop the limits!
The JFOYH EXA Form 900i is a precision-engineered hydraulic dropper seatpost available in 30.9mm and 31.6mm diameters with three length and travel options (100mm, 120mm, 150mm). Featuring a remote cable control for effortless height adjustment on the go, it’s built from lightweight 7075 alloy and designed for internal cable routing frames, combining durability, sleek integration, and performance for serious trail riders.

| ASIN | B09YH2PD3K |
| Best Sellers Rank | #198,900 in Sporting Goods ( See Top 100 in Sporting Goods ) #314 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 249 Reviews |
| Item Dimensions W x H | 30W x 445H millimeters |
| Item Type Name | Internal Routing |
| Item Weight | 0.73 Kilograms |
| Item height | 17.5 inches |
| Item weight | 0.73 Kilograms |
| Manufacturer | JFOYH |
| Material | Metal |
| Material Type | Metal |
| Product dimensions | 30W x 445H millimeters |
| UPC | 774144172076 |
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.
N**R
Ok but some parts are substandard
After fitting the seatpost and attaching the lever the bolt holding the clamp for the handlebars sheared off after the second use during testing.
J**Y
Easy to install
Love it, easy to install, but watch videos.
Trustpilot
1 month ago
2 weeks ago