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NoTubes ZTR Grail MK3 rim black

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  • Grail MK3 Rims

    • Light and laterally stiff design optimized for disc and tubeless tubes
    • Durable and light 6069 aluminum construction
    • Patented BST-R tubeless rim inflates easier and offers a more secure tire fit
    • 20.3mm WideRight rim design improves cornering and stability and lets tires roll faster
    • Optimized for 25-40mm disc road, gravel, and cyclocross tires
    • 440g

    The Grail MK3 rim is designed to let you ride without limits. Whether you’re rolling on fresh asphalt, crushing big gravel miles, or racing cyclocross, the Grail MK3 is ready to outperform the competition. Light, strong, and laterally stiff, the patented shape and 6069 series aluminum construction of the Grail MK3 makes it ideal for longer and more difficult rides both on and off the pavement. Stan’s patented tubeless technology can seal most punctures while you ride, for unmatched durability and peace of mind on every ride. The Grail rim’s versatile BST-R design is compatible with tubeless road tires, low-pressure tubeless converted tires, and conventional tires and tubes. The rim’s patented shape offers a more secure connection and airtight seal with tubeless tires and improves tire stability for superior handling in all conditions.

    The Grail MK3’s internal width and patented Bead Socket Technology rim design are optimized for 25-40mm tires. The truth is out that wider is faster, and the shape of the Grail MK3 rim lets you get the most speed from your tires, while also improving tire stability at speed and control in the corners. Nothing beats Stan’s patented tubeless rim design for getting the most performance from your tires.

    All the advantages the Grail MK3 offers on the road are even more noticeable once the pavement ends. For cyclocross and gravel racing, the optimized tire shape and added stability offer a distinct advantage. The Grail MK3’s rim shape is even designed to avoid tire pinch flats, allowing ‘cross and gravel racers to run lower pressures that absorb impacts and improve traction.

    No matter where your rides take you, choose the most trusted tubeless technology in the world. With the Grail MK3, there are no limits.

    Rim Internal Width:20.3mm ETRTO:622x20.3
    Rim External Width:24.0mm ISO:700cx24mm
    Rim Depth:24.5mm Tape:21-25mm (2x)
    Hole Count:24-hole, 28-hole or 32-hole Valve:44mm PV
    Rim Color:Black
    Max Spoke Tension:125KgF/1225N
    Material:6069 Aluminum Alloy Max Pressure with 25mm Tire:7.5 Bar (110psi)
    Brakes:Disc only Max Pressure with 32mm Tire:4.8 Bar (70psi)
    ERD:589mm Max Pressure with 40mm Tire:3.7 Bar (55psi)
    Rim Weight:440g


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

    BST-R rims offer maximum versatility with the widest range of tires and pressures. Compatible with 25mm to 32mm tires at pressures up to 115psi both with and without tubes, BST-R rims are also compatible with wider, higher-volume tubeless tires at pressures below 45psi.
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