Grail CB7 Wheelset

The Grail CB7 wheelset combines an ultralight 300g carbon rim engineered to absorb impacts with durable and smooth-rolling M-pulse hub to create the best tubeless wheelset for gravel and adventure road riding.

When it comes to tubeless technology, Stan’s wrote the book. Five patents and countless hours testing and refining have led to the 300g Grail CB7 carbon rim’s easy inflation and reliable airtight seal. The Grail CB7 has a maximum tire pressure of 85psi (5.9 bar), making it ideal for 25-40mm tubeless road and gravel tires. More traction, more comfort, and the ability to seal punctures as you ride make the Grail CB7 the best choice for riding and racing on gravel.

Built using our radial impact-absorbing carbon technology (RiACT), the Grail CB7’s shape and material placement work together to dampen vibrations and distribute impacts for a more comfortable ride that rolls faster, too. 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.

One of the lightest and smoothest gravel rims deserves a special hub, and the Grail CB7 rolls on M-pulse hubs. The magnetic pawls of the M-pulse hubs are at their strongest when engaged, but, unlike traditional pawl designs, offer very little friction and resistance when not engaged. The result is a smoother, friction-free feeling of pure forward momentum. To reduce drag even more, M-pulse hubs offer preload adjustment, allowing the bearings to spin as smooth as possible. M-pulse freehubs are designed and manufactured in Bend, Oregon by Project321. They’re available for Shimano Micro Spline and HG as well as SRAM XDR cassettes, and are offered in all common axle sizes.

From the highest levels of gravel racing and cyclocross, to road rides that leave the road behind, the Grail CB7 is the lightest, smoothest, and fastest wheelset you can own.

WHAT'S INCLUDED:

Grail CB7 wheels include pre-installed tape for tubeless use and presta valves.

FEATURES

• Incredibly light 300g carbon rim

• M-pulse ultra-low drag magnetic pawl adjustable hubs with 1.66° engagement and adjustable preload

• 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

• Enduro sealed bearings for long life and easy service

• Custom build options and decal colors

• Available in Shimano Micro Spline, HG, and SRAM XDR, 6-bolt and Centerlock, with options to fit most axle configurations

• Tubeless ready with rim tape and valves installed

• Connection program includes crash replacement coverage, 7-year carbon rim warranty, and $10 donation to trail maintenance or advocacy group of your choice

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:

1. 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
2. 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
3. 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
4. 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:

1. 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
2. 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
3. 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
4. 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:

1. Warranty and crash replacement are valid only for the original owner and are not transferable
2. Registration is required for Crash Replacement consideration
3. 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
4. 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.

M-PULSE HUB WARRANTY POLICY

M-PULSE 5-YEAR HUB WARRANTY:
Stan’s M-pulse hubs are covered by a 5-year warranty against manufacturing defects. Warranty does not cover abuse, misuse, consequential damage resulting from lack of or improper maintenance, normal wear and tear, and improper installation. Warranties only apply to the original owner with valid sales receipt. If a product is found to be defective, a free repair or replacement will be provided at the sole discretion of Stan’s.

HUB WARRANTY PROCESS:

1. Retain a copy of the original proof of purchase (i.e. Itemized receipt or invoice)
2. 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
3. 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
4. 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

HUB WARRANTY CONDITIONS:

1. Warranty is valid only for the original owner and is not transferrable.
2. Warranty does not cover the following:
   a. Damage sustained during shipment
   b. Products on which serial numbers, production lot codes/date codes or other identifying marks have been removed
   c. 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
   d. Labor costs for work not performed by Stan’s
   e. Shipping costs to Stan’s or local distributor
   f. Instances determined to be cosmetic only
   g. Any representation or warranty expressed or implied by a third party beyond the provisions of this stated policy