Stan's NoTubes ZTR Flow EX3 27.5 Inch Wheelset - FW: 15x110mm | RW: 12x148mm Boost

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Description of Stan's NoTubes ZTR Flow EX3 27.5 Inch Wheelset - FW: 15x110mm | RW: 12x148mm Boost


Design Promises a New Level of Reliability for Enduro, Downhill and Trail Bikes

The Flow EX3 is Stan's NoTubes most reliable tubeless rim made for handling faster speeds on the most demanding trails. If you’re looking for the ultimate rim for enduro and DH racing, something to handle the increased weight and added speed of an E-bike, or just want the most durable rim possible, this is it. The Flow EX3 combines the 29mm internal width and durable 6069 aluminum construction of the Flow MK3 with the incredibly strong triple cavity design of the classic Flow EX rim. The result is a new rim shape that perfectly balances radial compliance with lateral stiffness and sets an entirely new benchmark for durability and impact resistance.

The Flow EX3 wheels includes the Neo OS hubs and Sapim’s high-quality D-Light spokes and Secure Lock alloy nipples. D-Light spokes help keep rotating mass to a minimum while still offering exceptional strength, and Secure Lock nipples use a mechanical lock to resist loosening. The Neo OS front hub features larger bearings than conventional Neo hubs, while still being compatible with both 20mm and 15mm forks. The Neo OS rear hub rolls on a cromoly axle for increased durability and includes a Durasync freehub with simultaneous 6-pawl engagement.

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. But the Tiebeam brace and patented low sidewalls 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 WideRight 29mm inner width optimized for 2.35” to 2.8” tires, the Flow EX3 is the evolution of the Flow line for aggressive riding on today’s faster and more capable bikes and E-bikes. Every World Cup DH and Enduro World Series win, every hour of testing, riding, and improving, it’s all here in the Flow EX3.

Highlights of the Stan's NoTubes ZTR Flow EX3 MTB wheels

  • Patented low-profile tubeless rim design balances lateral stiffness with radial compliance
  • Designed, tested, and raced to victories on the World Cup DH and Enduro World Series circuits
  • Tiebeam triple-cavity rim design resists damage and prevents air loss under impacts
  • 29mm internal width optimized for 2.35” to 2.8” Trail, All-mountain, and DH tires
  • Most trusted tubeless system for easy setup and low maintenance
  • 6069 aluminum alloy is stronger than conventional 6061 alloys
  • Bead Blasted “BBQ” finish for added durability
  • Neo OS hubs designed to handle the added loads and durability needs of Enduro and DH racing
  • Sapim D-Light spokes in easily replaced, standard J-bend lengths and Secure Lock alloy nipples
  • Tubeless ready with rim tape and valves installed
  • Available for Shimano or SRAM XD cassettes




During extensive testing of Stan’s and competitors’ rims during the development of the Flow EX3, the key advantage of Stan’s successful Flow MK3 rim, released in April 2016, was determined to be its 6069 aluminum construction, which is 10-15% stronger than the more commonly used 6061 alloy. The Flow MK3’s radially compliant rim shape and 29mm internal width also tested extremely well. More surprising was the strength of Stan’s classic Flow EX rim, which used internal reinforcements to create a triple-cavity design. Though not made of the more durable alloy, and narrow by today’s standards, the old Flow EX demonstrated amazing strength during testing. Combining the best of these designs, increasing wall thickness at the spokes and utilizing a new “BBQ” shot-peened finish created a rim that exceeded all testing goals and proved much stronger and more impact resistant than any other. This is the new Flow EX3.

More than just strong, the Flow EX3 rim is designed to prevent air loss. Even when used with a tire insert, huge impacts can cause the sidewall of most rims to fold, causing air loss and eventual failure, but the Tiebeam internal brace and patented low-profile sidewalls of the Flow EX3 resist this folding, maintaining air pressure and structural integrity better than any other rim, even under the most severe impacts.

The Tiebeam design also allow tremendous strength increases with only minimal weight increases. The 27.5” Flow EX3 rim weighs 580g, while the 29” version weighs only 618g.

Like all Stan’s rims, the Flow EX3s are easy to set up tubeless. Thanks to Stan’s proven Bead Socket Technology, all that’s needed is a floor pump. Optimized for 2.35” to 2.8” tires, the Flow EX3 expands the Flow line to handle the most aggressive riding. Every Downhill World Cup and Enduro World Series ride, every hour of testing, riding and improving, it’s all here in the new Flow EX3.

Technologies

WideRight Rim Design

Stan's NoTubes WideRight profile increases tire volume without negatively affecting tread shape or sidewall height.
We all know the most important piece to the bicycle-terrain interaction is the contact patch between the tire and terrain, so tire profile and tire pressure play huge roles in bicycle performance and overall handling. But many rims just don't work well with the tires we're all using. Rims that are too narrow fail to offer sufficient sidewall support and protection to your tires and create a less stable shape. The result is less control in the corners, less traction on climbs, and more rolling resistance. Rims that are too wide also distort the tire profile, decreasing traction and control and driving impacts directly into the rim, negating the impact absorbing advantages of a tire's volume. Stan's NoTubes WideRight rim widths are designed to strike the perfect balance between tire volume and sidewall function.

BST

Bead Socket Technology rims are designed to match the shape of your tire's bead to create a safer and more secure air tight interface. Unlike the secure “socket” of a BST design, conventional rim shapes drive the bead of the tire down deeper into the rim, putting pressure on sidewalls that causes friction, restricts tire volume, and keeps the interface from forming a sufficient seal for tubeless use. BST rims secure the bead of the tire, not the sidewall, creating an air tight seal while allowing the tire's sidewall to expand to its true, rounder, more effective profile. The result is more traction and less rolling resistance. With lower-profile, less vulnerable sidewalls, the BST rims are also lighter and stronger by design, and accelerate more quickly.

Neo

Race-proven Neo hubs with Durasync offer the durability and faster engagement to handle today's most difficult trails and more aggressive riding style.
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Fact Sheet of Stan's NoTubes ZTR Flow EX3 27.5 Inch Wheelset - FW: 15x110mm | RW: 12x148mm Boost

Product Name: Stan's NoTubes ZTR Flow EX3 27.5 Inch Wheelset - FW: 15x110mm | RW: 12x148mm Boost
Manufacturer: Stan's NoTubes
Item Code: STN428892
Year: 2019
Manufacturer item code: DWFE70004 | DWFE70005
E.T.R.T.O: 29-584
Material: rims, hubs: aluminium | spokes: stainless steel
Weight: approx. 2017 gram (manufacturer's specs)
Spokes: Sapim D-Light 2.0/1.65/2.0mm - black
Spokes number: 32 each, 3-cross-laced
Nipples: Sapim Secure Lock Alloy Black
Rim: Stan's NoTubes ZTR Flow EX3
with 2.4" tire 37 psi max
with 2.8" tire 26 psi max
Rim height in mm: 17.9 mm
Rim Width in mm: 29 mm inner width | 32.6 mm outer width
Hub: Stan's NEO OS with Durasync
Fitting for shifting: Shimano HG 8/9/10/11-speed
SRAM XD 11/12-speed
Disc brake standard: 6 bolt
Fitting type of tire: clincher / wire bead, tubeless ready
Fitting tire dimension: 2.35" - 2.8"
Hub axle system: FW: Boost 15x110mm | RW: Boost 12x148mm
Included in delivery: front & rear wheel incl. Yellow-Tape and Tubeless valves
Purpose: Enduro, Downhill
Weight limit in kg: Rider 250lbs (113 kilo)
Manufacturer page: http://www.notubes.com/
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Currently not in stock Delivery time 13-15 days Stan's NoTubes ZTR Flow EX3 27.5 Inch Frontwheel - 15x110mm Boost
Selection: Stan's NoTubes ZTR Flow EX3 27.5 Inch Rearwheel - 12x148mm Boost
Currently not in stock Delivery time 13-15 days Freehub Shimano 8/9/10/11-speed / SRAM 8/9/10-speed
Currently not in stock Delivery time 13-15 days Freehub SRAM XD 11/12-speed
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