









🚵♂️ Upgrade your ride with precision and style—because your bike deserves the best stem in the game!
The Funn RSX Mountain Bike Direct Mount Stem is a precision CNC-machined, aerospace-grade 6061 alloy component designed for dual crown forks. Featuring an adjustable extension from 45 to 50mm and a 20mm rise, it offers a perfect fit for 31.8mm handlebars. Lightweight yet durable, its split two-piece design provides ample space for large displays or phone mounts, making it a top choice for serious downhill and off-road cyclists seeking both performance and style.






| ASIN | B076PSMVZ2 |
| Best Sellers Rank | #32,661 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #5 in Bike Stems |
| Brand Name | Funn |
| Color | Blue |
| Country of Origin | Taiwan |
| Customer Reviews | 4.7 4.7 out of 5 stars (205) |
| Date First Available | June 19, 2019 |
| Item Package Dimensions L x W x H | 10.59 x 2.76 x 2.6 inches |
| Manufacturer | FUNN |
| Package Weight | 0.22 Kilograms |
| Part Number | HS16RX045G20-10 |
| Size | 20mm rise |
| Sport Type | Cycling |
A**S
If it’s good enough for surronster it’ll be good enough for you
What can I say that the title doesn’t already i bought the 30mm & the grey colorway the grey is way more shiney than the picture shows which is nice if you like more shiney parts or bad if you prefer more matte look personally the shiney is cool catches the light nicely, 30mm was suggested by the manufacturer for a surron this will fit a talaria mx4 &/or talaria XXX those are the only bikes I have to test but obviously works with surron as well i cant speak to something like a throne srpent or anything like those. But overall i like how much space there is in the middle if you have a large display or a phone mount, additionally they feel great nice & durable the machining feels superb & not to heavy & not to light just perfect now I don't take this off road it is a pavement princess but i know surronster has taken these offroad many times so im sure these will hold up just fine they wouldn’t make a special size if they werent confident it wouldnt hold up
D**N
Looks great
Works great on my talaria x3 and comes with all the hardware
A**R
Good quality
He loved the parts for his. Ike
T**K
Sharp edges.
Really sharp edges. Took a chunk of my finger right out of package. Still bleeding…. After install.
G**1
Perfect fit and it’s pretty
What’s there to say they are super pretty and figment was perfect. I love how they are adjustable offset for mounting
A**1
Worked out perfectly
Bought this to replace the stock stem on my Sur-Ron X electric dirt bike. The stock one kept twisting when the bike went down out on the trails. (It happens) It was easy to remove the stock one and replace it with this one. Great fit and finish. Seems well made and looks good. I bought the one with the 30mm rise so it would keep about the same height I had with the stock one and a Protaper Handlebar with the 3" Rise that I had previously installed. It also didn't interfere with the Sur-Ron headlight.
H**A
Its great for surrons
Its great for my surron and it is so strong and feels so good
S**T
Surron compatible
Build quality was good, color quality is good. Works great for my Surron LBX.
D**N
Glad I bought. Can’t wait to use it.
P**E
Este es el modelo correcto para Surron 2023 y para versiones anteriores
A**R
looks great on surrons and holds up well, no complaints
T**4
Bolt was missing
S**A
Great direct mount for my Talaria X3 Pro handlebars.
Trustpilot
5 days ago
2 weeks ago