The Grail CB7 rim combines an incredibly light 300g weight, the reliability of the most trusted tubeless system, and Stan’s vibration damping carbon technology. For gravel racing and all conditions road adventures, the Grail CB7 is as comfortable as it is fast.

One of the biggest advantages of a tubeless wheel is the ability to seal flats almost instantly while you ride. With five patents on tubeless rim design (and counting), Stan’s NoTubes is the leader in tubeless innovation, and nothing beats the durability, convenience, and performance of our Bead Socket Technology.The BST rim design of the Grail CB7 has a maximum tire pressure of 85psi (5.9 bar), offering an ideal match for 25-40mm tubeless road and gravel tires. Across asphalt, gravel, and dirt, the Grail CB7’s rim provides the amazing traction and control only a Stan’s tubeless systems can offer, along with the ability to seal flats while you ride.

The Grail CB7 rim is constructed using our radial impact-absorbing carbon technology (RiACT) that combines a more compliant lower-profile rim shape with a special carbon lay-up process to better absorb vibrations and distribute impacts for a faster, more comfortable ride. Whether saving energy for a late race attack, or just the extra loop to the best coffee shop, the Grail CB7 lets you ride further, faster, and flat-free.

FEATURES

Incredibly light 300g carbon rim
21.6mm internal width optimized for 25-40mm gravel and road tires
Patented Bead Socket Technology for the easiest and most reliable tubeless performance
Carbon RiACT rim shape maximizes radial compliance while resisting lateral flex to absorb impacts, roll faster, and increase control
Custom decal kits available
7-year Warranty and lifetime crash replacement

SPECS

Rim Internal Width:	21.6mm	ETRTO:	622x21.6
Rim External Width:	26.4mm	ISO:	700cx26.4mm
Rim Depth:	19.3	Tape:	25mm
Hole Count:	24-Hole, 28-Hole	Valve:	Presta
Rim Color:	Black	Max Spoke Tension:	105KgF (1030N)
Material:	Carbon	Max Pressure with 25mm Tire:	85psi
Brakes:	Disc only	Max Pressure with 32mm Tire:	70psi
ERD:	596mm	Max Pressure with 40mm Tire:	55psi
		Rim Weight:	300g

Warranty

7-YEAR CARBON RIM Warranty AND CRASH REPLACEMENT POLICY

7-YEAR CARBON RIM Warranty WITH REGISTRATION:
Stan’s will Warranty new carbon rims for the original owner, purchased through an authorized Stan’s dealer, directly from Stan’s, or included as original equipment on a new complete bicycle purchase, for a period of 7 years against defects in materials or workmanship. A product determined by Stan’s to be defective will be repaired or replaced, at our sole discretion, free of charge. Please see our Warranty AND CRASH REPLACEMENT CONDITIONS for details. Purchases made through unauthorized resellers such as eBay, Alibaba, Amazon or similar resale sites are not supported under our Warranty policy.

CARBON RIM Warranty PROCESS:

Retain a copy of the original proof of purchase (i.e. Itemized receipt or invoice)
Note: Reply to the registration confirmation email with a picture or scan of your receipt and we’ll keep it on file for you in the event of a future claim
Submit your claim via an authorized Stan’s dealer with your proof of purchase or contact us at Warranty@notubes.com with a description of your issue, a photo that helps illustrate the issue, and your proof of purchase
Note: For Warranty and crash replacement inquires outside the United States, please contact your local dealer or distributor
The dealer will contact Stan’s or the local distributor and arrange for repair/replacement, or, if you’ve contacted us directly, we will work quickly to reply to your email with instructions
If you have contacted Stan’s directly regarding a wheelset Warranty, and your approved request requires a return, Stan’s will provide you with a shipping label for return, free labor for your wheel rebuild, and return shipping

CARBON RIM CRASH REPLACEMENT PROCESS:

Retain a copy of original proof of purchase (i.e. Itemized receipt or invoice)
Note: Reply to the registration confirmation email with a picture or scan of your receipt and we’ll keep it on file for you in the event of a future claim
Submit your request via an authorized Stan’s dealer with your proof of purchase or contact us at Warranty@notubes.com with a description of your issue, a photo that helps illustrate the issue, and your proof of purchase
Note: For Warranty and crash replacement inquires outside the United States, please contact your local dealer or distributor
The dealer will contact Stan’s or the local distributor and arrange for repair/replacement, or, if you’ve contacted us directly, we will work quickly to reply to your email with instructions
If you have contacted Stan’s directly regarding crash replacement and your request has been approved you will be charged crash replacement pricing for your product and standard return shipping fees.

CARBON RIM Warranty AND CRASH REPLACEMENT CONDITIONS:

Warranty and crash replacement are valid only for the original owner and are not transferable
Registration is required for Crash Replacement consideration
Warranty does not cover the following:
a. Damage sustained during shipment (please always let us know if an item arrives damaged, but ultimately claims must be filed with the carrier)
b. Products on which serial numbers, production lot codes or other identifying marks have been removed
c. Damage resulting from extreme heat due to automotive exhaust or other heat sources
d. Normal wear and tear, misuse, incorrect installation or improper maintenance, use of incompatible parts or components, accident or crash damage, negligence, modifications not recommended or approved by Stan’s
e. Products without a valid invoice or receipt containing the authorized dealer’s identifying details
f. International shipping costs and duty fees.
g. Labor costs for work not performed by Stan’s, including costs associated with removing the wheels and any associated components including but not limited to rotors, tires and cassettes, computer magnets, from the bicycle or wheel
h. Any representation or Warranty expressed or implied by the authorized dealer beyond the provisions of this stated policy
i. Purchases made through unauthorized resellers such as eBay, Alibaba, Amazon or similar resale sites
Crash replacement does not cover the following:
a. Normal wear and tear expected with the use of high-quality mountain bike components
b. Products on which the serial numbers, production lot codes or other identifying marks have been removed
c. Misuse, incorrect installation or improper maintenance, use of incompatible parts or components, negligence, modifications not recommended or approved by Stan’s
d. Instances determined to be cosmetic only
e. Shipping costs to or from Stan’s or the local distributor
f. Labor costs associated with removing the wheels and any associated components including but not limited to rotors, tires, cassette, computer magnets, etc. from the bicycle or wheel

SPECIAL NOTE REGARDING CARBON AND EXPOSURE TO EXTREME HEAT:
Avoid exposing carbon rims to any excessive or prolonged sources of heat. When transporting your bike, please exercise caution when using receiver, tailgate, or trunk mount racks that may position the wheels of your bicycle near sources of heat, such as the exhaust system of your vehicle. We strongly recommend maintaining a minimum distance of 50cm (20”) between any carbon wheel and the path of exhaust of your vehicle, or any other concentrated source of heat, including but not limited to portable heaters and heat guns. Damage resulting from extreme heat due to automotive exhaust or other heat sources is not covered under Warranty.

Our Tech

Grail MK3 Rim

Grail CB7 Rim

Grail Rim