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Grail MK3 Rims

As low as $105.00
SKU
RTGTMK3

FEATURES:

  • 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

 

DESCRIPTION:

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.



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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: 110psi
Brakes: Disc only   Max Pressure with 32mm Tire: 70psi 
ERD: 589mm   Max Pressure with 40mm Tire: 55psi 
       Rim Weight: 440g

STAN’S NOTUBES ALUMINUM RIM WARRANTY AND CRASH REPLACEMENT POLICY

2 YEAR ALUMINUM RIM WARRANTY:

All Stan’s NoTubes Aluminum rims are covered under a 2 year warranty against manufacturing defects from the original purchase date. Warranty does not cover abuse, misuse, consequential damages, normal wear and tear, damage resulting from crashes, or improper installation. Warranties only apply to the original owner. If a product is found to be defective, a free repair or replacement will be provided at the sole discretion of Stan’s NoTubes. Purchases made through unauthorized resellers such as eBay, Alibaba, Amazon or similar resale sites are not supported under our warranty policy.

ALUMINUM RIM WARRANTY PROCESS:

  1. Retain a copy of the original proof of purchase (ie. Itemized receipt or invoice)
  2. Submit your claim via an authorized Stan’s NoTubes dealer with your proof of purchase or contact us at [email protected] with a description of your issue, a photo that helps illustrate the issue, and your proof of purchase
    Note: For warranty and crash replacement inquiries outside the United States, please contact your local dealer or distributor 
  3. The dealer will contact Stan’s NoTubes 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 NoTubes 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  

1 YEAR ALUMINUM RIM CRASH REPLACEMENT:

Should you have the unfortunate experience of crashing and damaging your Stan’s NoTubes aluminum rims, we want nothing more than to help you get back on the bike as quickly as possible.  The Crash Replacement Policy covers the rims for a period of 1 year from the original purchase date against damage caused during normal operation of the bicycle, including racing.  Crash replacement aluminum rim pricing is 50% off the MSRP of the exact or comparable product at the time of the claim. If necessary, spokes, nipples, tape, and costs associated with any build labor performed by Stan’s NoTubes will be provided at a discount. 

ALUMINUM RIM CRASH REPLACEMENT PROCESS:

  1. Retain a copy of original proof of purchase (ie. 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 NoTubes dealer with your proof of purchase or contact us at [email protected] 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 NoTubes 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 NoTubes 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.

ALUMINUM RIM AND WHEELSET WARRANTY AND CRASH REPLACEMENT CONDITIONS:

  1. Warranty and crash replacement are valid only for the original owner and are not transferrable.
  2. Warranty does not cover the following:
    1. Damage sustained during shipment
    2. Products on which serial numbers, production lot codes/date codes or other identifying marks have been removed
    3. 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 NoTubes
    4. Labor costs for work not performed by Stan’s NoTubes
    5. Shipping costs to Stan’s NoTubes or local distributor
    6. Instances determined to be cosmetic only
    7. Any representation or warranty expressed or implied by a third party beyond the provisions of this stated policy
    8. Purchases made through unauthorized resellers such as eBay, Alibaba, Amazon or similar resale sites
  3. Crash replacement does not cover the following:
    1. Normal wear and tear expected with the use of high-quality mountain bike components
    2. Products on which the serial numbers, production lot codes or other identifying marks have been removed
    3. Misuse, incorrect installation or improper maintenance, use of incompatible parts or components, negligence, modifications not recommended or approved by Stan’s NoTubes
    4. Instances determined to be cosmetic only
    5. Shipping costs to or from Stan’s NoTubes or the local distributor
    6. 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

3 YEAR HUB WARRANTY:

All Stan’s NoTubes hubs are covered by a 3 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 NoTubes.

Our Technology

  • WideRight

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

    Learn More
  • BST-R

    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.

    Learn More
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