This rim is built to let you do more. The Flow EX3 is Stan's most robust tubeless rim made for handling faster speeds on the most demanding trails. Durability starts with design, and Stan's patented Bead Socket Technology ensures easy inflation and the most reliable airtight seal, proven time and again on enduro and World Cup DH courses around the world. Bead blasted 6069 aluminum construction and Stan's Tiebeam triple cavity design make the Flow EX3 the ultimate rim for enduro and DH racing and a great choice for the added weight and forces of eBikes, or anyone looking for the most durable tubeless rim.
The Flow EX3 rim’s Tiebeam inner bridge lets it withstand impacts that would deform most rims to the point of air loss and structural failure. Even if you use a tire insert, huge impacts can cause the sidewall of most rims to fold, causing air loss and eventual failure. The Tiebeam brace and patented low walls of the Flow EX3 resist this folding, maintaining air pressure and structural integrity better than any other rim. Combined with the added durability of 6069 aluminum and 29mm inner width optimized for 2.3" to 2.6" tires, the Flow EX3 is the evolution of the Flow line for the most aggressive riding.
This rim is fully tubeless compatible when used with Stan's Tubeless Rim Tape and a Wheelbuilder Tubeless Valve Stem.
Checkout our Custom Stan's MTB wheel page to configure your personalized set of Stan's wheels.
- Size: 27.5", 29er
- Weight: 580g (27.5") / 618g (29")
- Hole count: 32H
- Internal/External width: 29mm/32.6mm
- Tubeless compatible
- Rim depth: 17.9mm
- Valve: 35mm presta
- Rim material: 6069 Aluminum
- Color: black
- ERD: 564mm (27.5") / 602mm (29")
- Max pressure: 2.3" tire = 39psi, 2.6" tire = 34psi
|Rim Description||Material||Rim Width Internal/External||Rim Profile Height||Hole Count||Weight (Size)||Tire Size Range||Application|
|Crest MK4||Aluminum||25mm / 28.4mm||18mm||28H, 32H||357g (26") / 374g (27.5") / 399g (29")||40mm - 2.3"||Cross Country, Gravel|
|Arch MK4||Aluminum||28mm / 31.4mm||18.9mm||28H, 32H||431g (26”) / 451g (27.5") / 481g (29")||2.2" - 2.5"||Cross Country, Trail|
|Flow EX3||Aluminum||29mm / 32.6mm||17.9mm||32H||580g (27.5") / 618g (29")||2.3' - 2.6"||Enduro, DH-Freeride|
|Flow MK4||Aluminum||30mm / 33.6mm||18.9mm||32H||466g (26") / 487g (27.5") / 521g (29")||2.3" - 2.6"||Trail, Enduro, DH-Freeride
Inventory Note: We stock a variety of Stan's rims, however our inventory fluctuates daily. We may need to order rims with an average lead time of 7-10 business days. If your order is time sensitive we encourage you to contact us for up to the minute product availability and shipping lead times.