A rock solid tubeless disc wheel that'll gladly go with you on gravel adventures, race with you in a proper cross, and train with you on the pavement
It wasn't until after relentless hours of working and testing with Stan's sponsored road racers and cyclocross team, that Stan's was comfortable drafting initial blueprint for the Grail Comp wheels. The result is what may be the most unrestricted, disc-specific rim for the pavement, cross-course, and gravel. Measuring in at over 24mm wide and 24.5mm deep, the Grail Comp carries the title of "Stan's deepest profile", making it the most aerodynamic rim they've produced.
Knowing that aerodynamic properties aren't everything when it comes to burning around tricky cross courses, Stan's designed the Grail with a variable wall thickness spoke bed that maximized durability and provides consistent spoke tension while keeping weight at the lower end of the scale. Its internal rim channel and true BST sidewalls coalesce to lend supplementary strength and create a tire profile that's just plain faster.
The resilient Grail rims are laced to Stan's new Neo Ultimate hub system which features larger bearings and a stronger, stiffer, shoulderless axle that creates a stiff and durable core that's light enough to tackle quadbusting climbs, nimble enough to pick through dirt sections, and strong enough to take the occasional big hits. If you look at your bike and see drop bars and knobby tire, the Grail Pro is your kind of wheel.
ZTR Grail Pro Wheelset FEATURES:
Pro versions feature Neo Ultimate hubs with 5° engagement and Sapim CX-Ray spokes
BST-R rim design compatible with 25mm-40mm road tubeless tires, traditional road tires when used with tubes, and low-pressure cyclocross tires
Aero rim design is faster without being overly susceptible to crosswinds
Can be used with standard clincher tires when used with tubes
Hand built at No Tubes USA
Wheel Size: 700c
Cassette Body Type: Shimano/SRAM 8, 9, 10 Speed
Hub: Neo Ultimate IS disc
Front Axle: 15mm x 100mm
Spoke Drilling: 24/28h
Brake Compatibility: 6-Bolt Disc
Rear Axle: 12mm x 142mm Thru-Axle
Rim Depth (mm): 24.5 mm
Rim Material: Alloy
Rim Width (External): 24.1 mm
Rim Width (Internal): 20.3 mm
Spoke Info: Sapim CX-Ray Black 2.0/(0.9x2.2)/2.0 with Secure Lock aluminum nipples
Tire Type: Tubeless/Clincher
Max tubeless pressure (for 32mm tire): 45psi
Max pressures with tubes: 116psi (23mm tire with tube), 100psi (28mm tire with tube)
Includes: Stan's tubeless valves, Stan's yellow tubeless tape and QR skewers
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