The Stan's No Tubes Grail CB7 Carbon Rim is their latest generation rim designed for road, gravel, and cross use. Base on the shape of the Grail MK3 Rim, the Grail CB7 Rim trades in the 6069 alloy for carbon dropping the already light weight rim down to a feathery 300g. Grail CB7 Carbon Rims are not only lighter than their alloy counterpart they are also have improved lateral stiffness for improved cornering and better radial compliance to soak up the bumps over the roughest gravel roads, CX courses or even singletrack.
The Grail CB7 Carbon Rim like the rest of Stan''s rim line use their patented BST and WideRight technologies. BST rim beads all you to easily set up your Grail CB7 Carbon Rims tubeless and in some cases depending on the tire, even without an air compressor. Stan''s WideRight technology, optimizes the tire width to be paired with the rim to make the most out of the sidewall and tread shape. Grail CB7 Carbon Rims are best used with 700x25-40mm tires.
Setting up the Grail CB7 Rim tubeless, you will need Stan''s 25mm tubeless tape and 44mm tubeless valve. For tire pressures over 40psi you will need to install 2 layers of Stan''s Tubeless Tape.
Carbon tubeless ready rim for road, cross and gravel
RiACT carbon rim shape for radial compliance and lateral stiffness
WideRight rim profile for 700x25-40mm tires
Stan''s Grail MK3 rims are compatible with road tubeless, low pressure tubeless ready converted, and tubed tire. Converted tubeless ready tires are designed for low pressure use and should not be used over 40psi. With a dual layer of tape road tubeless tires can be used at the following max PSI based on the width:
Internal Rim Width
Rim Center Offset
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