Flow MK4 M-Pulse Rear Wheel
Flow MK4 M-Pulse Rear Wheel, Skip the drag, and coast with ease! Stan's newest innovation in bicycle hubs combines top-notch materials with a smart, magnet-driven, engagement system. M-pulse hubs have been reengineered from the ground up to have you rolling smoother, longer.With Stan's patented, BST-Asymmetric shape you can expect a top-of-the-line, reliable tubeless seal. While the durable 6069 alloy construction and reinforced spoke bed, combine to create an incredibly durable wheelset that builds confidence with every ride. Built with strength and easy serviceability in mind, the asymmetric rim allows for a single spoke length on both the front and rear wheels. Using traditional J-bend spokes and lacing for proven strength, ride quality, and serviceability for the life of each wheel. A Magnetic HeartWhat really set's Stan's Flow MK4 wheelset apart from the crowd is the new, magnetic engaged M-Pulse hubs. Featuring an innovative and bombproof magnetic locking engagement system that provides an unbeatable smooth-rolling, no-drag ride. Unlike weaker pawl and spring designs, the M-pulse features six pawls with Neodymium magnets that offer virtually no resistance when coasting, and reliably lock into place quicker than standard spring-based pawls.The heart of M-pulse hubs is the magnetic-locking engagement system based on the ground-breaking Project321 design. Manufactured in a small-batch, high-precision facility in Bend, Oregon, M-pulse freehubs feature six pawls equipped with Neodymium magnets engaging every 1.66Adeg. This design offers substantially more force than traditional spring-based pawl designs, and costs you much less drag when coasting. With decreased friction, Stan's new M-pulse hubs spin more freely than any other hub on the market, and roll further, faster, with less effort, too.Stan's believes an innovative design is only as good as its materials and construction. So each detail of the M-pulse hub has been engineered to remove the weaknesses in traditional pawl and ratchet-style hubs.Built to LastFeaturing 17mm axles, made of 7075 aluminum, rolling on long-lasting Enduro-brand bearings, plus a custom grease fill - Stan's has taken every effort to optimize for low resistance and high durability. Carefully engineered to eliminate weaknesses found in other hub designs, the hub is fully shielded, with no visible bearing seals, giving you superior protection when riding in any conditions. With just 1.66Adeg of rotation needed to engage the M-Pulse hub, power is always there right when you need it!M-pulse hubs also feature an adjustable preload that decreases drag and resistance for even less effort and more speed. This preload prolongs bearing life by allowing the hub's bearing tension to be tuned with greater precision. A precision piece of equipment deserves the option of precise tuning, and the M-pulse hub's adjustable preload, available on both the front and the rear hub, delivers exactly what you'd want.Tubeless-ready with rim tape and presta valve installed. Stan's original Flow redefined what you could expect a mountain bike rim to do. And now, the Flow MK4 gives you the power to do even more!Flow MK4 wheels include pre-installed tape for tubeless use and Presta valves.Low-profile 30mm internal width. Offering optimal tire shape, traction, and control for 2.3-2.6" tiresDurable 6069 aluminum with welded joint and reinforced spoke bedBST-Asymmetric design combines Stan's legendary easy tubeless inflation with a stronger, more balanced wheel buildM-pulse ultra-low drag magnetic pawl adjustable hubs with 1.66Adeg engagementEnduro bearings with double-row freehub bearingMatched wheelsets use traditional J-bend lacing and share a single spoke length for easy serviceabilityConnection program includes 5-year hub warranty, 3-year rim warranty, 1-year crash replacement, and $10 donation to trail maintenance or advocacy group of your choiceMatching front wheel: Stan's No Tubes Flow MK4 front wheelDetails:Rear Hub: Stan's/Project 321 M-Pulse hubRotor: 6-boltHub spacing: Boost (12 x 148mm), SuperBoost (12 x 157mm)Freehub: Shimano HG, Shimano Micro Spline, SRAM XDR (SRAM XD with included spacer)Points of engagement: 216Rim: Stan's Flow MK4Rim Size: 27.5", 29"Material: 6069 Aluminum AlloyHole: 32hInternal width: 30.0mmExternal width: 33.6mmTire width: 2.3 - 2.6"Spoke:Sapim D-Light, 2.0/1.65/2.0# of spokes: 32Sapim double square alloy nipplesWeight:Wheelset: 1792g (27.5"), 1882g (29")Rear wheel: 972g (27.5") / 1017g (29")