Stans FLOW MK3 27.5 Rear Wheel, 12×142, Shimano

Stan’s Flow rims have had a long history as the go-to trail and all-mountain wheelset for riders around the world, and the Flow MK3 continues the evolution.

Stan’s Flow MK3 wheels have claimed victories in both World Cup DH and Enduro World Series races, while still being light enough for all-day trail rides. Stan’s patented tubeless bead socket technology offers the easiest and most secure tubeless setup in the business. The patented low-profile shape of the rim also resists pinch flats and reduces overall rim weight. The Flow MK3’s 29mm WideRight internal rim width provides the perfect balance of tire stability and traction. Laterally stiffer and more durable, the Flow MK3’s 6069 alloy is also lighter and stronger than conventional 6061 alloy. Born and bred for control at speed and perfect for technical trails, Stan’s Flow MK3 in a class by itself for trail and all-mountain performance.

Wholesale Only


    • Tubeless ready with rim tape and valves installed
    • 29mm internal width for tires up to 2.8″
    • Low-profile shape rolls faster and helps stop tire pinch flats
    • Rim shape balances radial compliance with lateral stiffness
    • 6069 alloy is stronger than conventional alloys
    • Neo hubs accelerate quicker and last longer
    • Built on the proven success of our Flow EX on the World Cup DH circuit
    • Most trusted tubeless system for easy setup and low maintenance
    • Sapim Secure Lock aluminum nipples
    • Available for SRAM XD and Shimano HG cassettes
    • Available for all current axle systems, including Cannondale Lefty SL, Lefty Supermax, SRAM Predictive Steering, Boost 110mm, Boost 148mm, 150mm, and Super Boost Plus 157mm spacing
    • WideRight optimized for 2.35”-2.80” Trail and All-mountain tires

Product Specs:

Rim Internal Width:29.0mm          Rim Weight:459g (26″) / 480g (27.5″) / 527g (29″)
Rim External Width:32.3mm Wheelset Weight:1739g (26”) / 1794g (27.5″) / 1905g (29″)
Rim Depth:16.1mm Front Wheel Weight:809g (26”) / 836g (27.5″) / 892g (29″)
Spokes:Sapim Force Black 2.0/1.7/1.8mm Rear Wheel Weight:930g (26”) / 958g (27.5″) / 1013g (29″)
Nipples:Sapim Secure Lock Alloy Black ERD:542mm (26″) / 567mm (27.5″) / 605mm (29″)
Hub:Neo with Durasync ETRTO:559×29.0 (26″) / 584×29.0 (27.5″) / 622×29.0 (29″)
Hole Count:32-hole ISO:26″x32.3mm / 27.5″x32.3mm / 29″x32.3mm
Rim Material:6069 Aluminum Alloy Tape:30mm
Rim Color:Black Max Spoke Tension:125kgf (1225N)
Hub Color:Black Max Pressure with 2.4″ Tire:37psi
Brakes:Disc Only Max Pressure with 2.8″ Tire:26psi
Valve:35mm Presta Max Rider Weight:250lbs (113 kilo)

Stan's Technology



Our WideRight profile increases tire volume without negatively affecting tread shape or sidewall height.
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Bead Socket Technology

BST rims are designed to match the shape of your tire’s bead to create a safer and more secure air tight interface.
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Our race-proven Neo hubs with Durasync & Neo Ultimate hubs with Speedsync offer the durability and faster engagement to handle today’s most difficult trails and more aggressive riding style.
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