Since 2012 ... The Highest Performance & Most Durable Carbon Fiber Rims for MountainRoad, Gravel, Adventure & E-Assist Bikes

Derby Rims Product Lifetime Warranty Policy

Derby Rims are designed for the most advanced riders with goals of maximum performance and rider safety including maximum durability. A zero damage rate yearly goal may be impossible, but a zero damage rate is closer each year with ever advancing manufacturing experience and technology. In 2017 and 2018 fewer than 1% of each model of Derby rims were damaged, including DH models. In fact almost all models have been well under 0.5% yearly damage rate for many years. And Derby road rims continue to have a zero impact damage rate for over 3 years since introduced. Although rare, unfortunate damage can occur, and damaged Derby rims are top priority to replace quickly.

Experienced racers expect more rapid fatigue and impact damage to any type of rims compared to more casual recreational riding. Derby carbon rims also fatigue more rapidly from racing and other extremely hard uses, and racers should replace their rims each race season, and move undamaged rims of any brand to other bikes or sell them.

Lifetime Warranty Policy for all Original and Secondary Owners

To qualify for a Derby rim damage replacement warranty, the original owner's receipt as proof of purchase is required for original owner pricing of defect or damage. When purchased direct from Derby Rims, the original owner's receipt is on file. When purchased from an authorized Derby Rims dealer, an original retail receipt must have the dealer’s business name, address, and phone number printed on the receipt, and date of sale, the original customer name, and Derby rim model name and wheel build parts. Pictures of the whole wheel having rim damage and a close up picture of the rim damage and rim serial number which is located near the valve hole, are all required. Shipment to Derby Rims of the damaged rim may be required for thorough inspection. The customer is responsible for all shipment costs.

Any discontinued Derby rim model approved warranty will be replaced by the next closest current rim model. Increased durability models can be warranty replaced with no additional cost, such as replacing AM with DH model for increased durability.

Derby Rims are designed, manufactured, and labeled according to their intended use. Evidence of original owner abuse of intended use will only be warrantied by the maximum $250 discount replacement price. Examples of abusive use: Large volume or Enduro-DH oriented tires on XC rims, and abusive high speed suspension bottoming caused damage showing larger than 3/4 inch crack of XC and AM rims. 

XC, CX, RD, RC intended use:

Pavement in good condition.
Smooth dirt and gravely road or trail riding.
Maximum tire size: 2.25 inch (56 mm)
Maximum tire weight: 600g.

AM intended use:
Technical-trail moderate speed riding, no large drops greater than 2 ft to smooth transition, never high speed Enduro descents.

DH intended use:
DH and Enduro bikes, for high speed descents over any terrain.
Enduro riders should use DH rim for rear wheel. AM rim is normally OK for a front rim for Enduro gram counters. 
Large drops over 2 foot are free-ride stunts and should use DH rims front and rear for best durability. Also DH park riders should use DH for front and rear rims, due to high risk of crash landings.

Lifetime Manufacture Defect Warranty

All Derby rims are covered by a lifetime warranty against manufacturing defects for the original owner who had purchased directly from Derby Rims or an authorized dealer. The Defect Warranty does not cover misuse, consequential damage, wear and tear, abuse, or improper installation. A customer will receive a free Derby rim replacement if a product is found defective at the discretion of the Derby Rims manufacturer evidence-based expert analysis, also any damaged Derby rim replacement payment will be refunded for a discounted rim purchased to expedite replacement while waiting for a conclusion of defect analysis. The customer is responsible for all shipment costs.

Lifetime Damaged Rim Replacement Warranty

Derby Rims offers a lifetime rim damage warranty for the original owner who had purchased from Derby Rims or when built  into wheels by an authorized wheel builder or bike shop. Damage to a carbon fiber rim's structural integrity is evident when visibly cracked or punctured. Chips, scratches, and scuffs can occur during Derby rim use, and are normal wear characteristics not covered by a damage replacement warranty. Please send pictures to Derby Rims if visible chips, scratches, or scuffs are questionable whether structural damage. 

Damage has proven to be so rare that Derby Rims sponsors the original owner a free damaged rim replacement for each rim of a pair purchased together from Derby Rims, or purchased from an authorized wheel builder or bike shop dealer and built into wheels by the dealer, that is determined by Derby Rims to be structurally damaged within the first year of purchase date. Within the second year for the original owner, the replacement is only $195 for most Derby rims, and only $240 for the 27.5x40i, 27.5x45i, and 29x40i plus tire rims for each original rim. Otherwise, if the original customer suffers a structurally damaged rim over two years old or damage to a rim which had been replaced with this warranty pricing policy, the replacement price is only $250 for most rims, or $295 for the 27.5x40i, 27.5x45i, and 29x40i plus tire rims. The customer is responsible for all shipment costs.

Lifetime Transferable Secondary Owner or Loaned Rider Damaged Rim Replacement Warranty

The Lifetime Damaged Rim Replacement Warranty is transferable by resale or gift to a secondary owner, or while loaned to another rider by any current owner. To qualify for a damaged Derby rim warranty priced replacement by any rider who was not the original owner, email clear pictures pictures of the damaged wheel, close up of damage, and serial number as described fully above for all warranty requests. The damaged Derby rim replacement cost for a rider who is not the original owner is $295 for most rims, or $345 for 27.5x40i, 27.5x45i, and 29x40i rims. The customer is responsible for all shipment costs.

For all warranty issues, contact


Derby Rims are warrantied for use with no greater than the maximum tire pressures listed on the Technical page of

Derby Rims are warrantied for use with rim tape designed and clearly labeled specifically for use in bicycle rims.

Derby mountain rims can normally can be used with one round of adhesive rim spoke hole sealing bicycle rim tape within the center channel, two rounds of tape is recommended for DH rims or rims used in hot climates.16-18mm or ¾ inch maximum wide rim tape must be installed for Derby 30i and 35i rims, or 24mm or 1 inch maximum wide rim tape must be installed for Derby 40i and 45i plus tire rims (Orange Seal rim tape is recommended). Derby 25i, 23i, and 22i rims for paved or gravel road can be used with two rounds of 12 to 14mm maximum wide adhesive rim spoke hole sealing tape within the center channel (Stan's 12mm yellow rim tape is recommended).

Derby rims can be used with inner tubes, or tubeless with liquid tire sealant, having 40mm minimum length stems. For tubeless sealant use, it can be helpful to seat the beads with a common floor pump if additional rounds of rim tape are added (Orange Seal tubeless tire sealant is recommended). When riding tubeless with sealant, ride with caution to observe the reaction of your tires and rims, and frequently check for loss of tire pressure while the sealant is setting up during the first few days. Due to the variety of tires, some may work much better tubeless with sealant than others. If your tire pressure drops too low there is a risk of severe rim impact. The plastic rim strip and sealant system allows the use of standard, tube-type tires, to be used in a tubeless manner. It should be noted that some tube and tubeless tires were not designed to be used with sealant and doing so may void the tire's warranty.

Derby Rims is not responsible for any damage to the tires or Derby Rims and/or any injury or liability resulting from the use of rims sold by Derby Rims or tires mounted on rims sold by Derby Rims. The terms of the Derby Rims Lifetime Warranty and Disclaimer are agreed upon any purchase and by any rider of Derby Rims.


A quick warranty replacement is number-one priority attention for Derby Rims. 

The warranty agreed upon purchase is published on the Warranty page of

Please email all of the following information (a dealer sales receipt should contain all the information, except serial number and damage photos):

For an original or secondary Derby rim owner, please complete the following damaged rim warranty application.

* Full Name of rim owner:

* Shipping address for a damage replacement Derby rim:
* Model of damaged Derby rim:
* If original owner: Date of purchase:
* If original owner: Business Name and Address and phone number of the Derby Rims authorized dealer:

* If original owner: Attach a photo or clearly scanned image of the Authorized dealer sales receipt, with the dealer's company name printed on the sales receipt, and date of the retail customer order, and the Derby Rims itemized with or without a wheel build. (If directly purchased from Derby Rims, please provide the sales invoice number, or Derby Rims can find by name or email.)

(The damaged rim will not need to be shipped to Derby Rims for inspection if photos are provided. If defect is suspected, shipment of the rim to Derby Rims for expert analysis is required.)

* Attach a clear photo of the damaged rim serial number (printed near the inside valve hole).

* Attach one or more clear photos of the rim damage.

Email the warranty application and pictures to

Once confirmed, the warranty replacement for Derby Rims can be supplied very quickly.