Amflow's warranty on frames lasts 5 years for the original owner. A 2-year warranty from the original owners purchase date applies to subsequent owners.

For the original owner, drive systems are warrantied for 2 years, with batteries covered for 2 years or 500 cycles (whichever comes first). 

Other Amflow components are covered for two years. Like our other brands, the warranty covers material defects and workmanship but not wear and tear, crash damage or poor maintenance. 

Amflow's full policy is here.

During the warranty period, should you damage your Amflow carbon frame or wheels in a crash, Amflow will endeavour to will supply replacement parts at a reduced price.

Given the huge variety of potential issues, the specific discount will be set at the time of the replacement. This applies to the original owner in the warranty period

Marin offer a lifetime warranty on rigid frames and a 5-year warranty on full suspension frames for the original owner. Like our other brands, the warranty covers material defects and workmanship but not wear and tear, crash damage or poor maintenance!

The lifetime warranty on rigid frames (for our purposes, hardtails), has the caveat that bicycles have an unquantifiable useful product life. The useful life span of a bicycle is affected by riding style, riding conditions, frame material and construction, and other factors. The warranty period offered by Marin does not guarantee that the bicycle will last forever, or for the life span of the original purchaser.

You can read the full Marin Warranty policy here.

Marin have an Assisted Purchase scheme for customers who have damaged their bikes through a crash or if they are not the original owner. Depending on the age and condition of the bike this is typically around 20-30% off the RRP.

This information applies to 2026 on Nukeproof bikes and frames.

Register your Nukeproof frame or bike within 30 days of purchase to extend the 2-year warranty to a lifetime warranty*. The only exclusion is downhill bikes which remain at 2 years.

Registration also makes the warranty transferable to the second owner. The second owner also needs to register with Nukeproof.

To benefit from this warranty, the bike or frame must be serviced once a year.

*Nukeproof define the lifetime of a frame as 10 years.

Nukeproof warranty policy

This information applies to 2026 on Nukeproof bikes and frames.

Should a Nukeproof owner registered and included in the warranty as described above crash and damage a frame beyond repair, Nukeproof will replace the frame at 40% off retail price. This also applies to second owners, so long as they meet the criteria described above.

Full T's and C's here.

The Transition Lifetime Warranty is in addition to the statutory rights that apply when you buy anything from 20Twenty Store.

Transition Bikes take pride in the quality of their products. Transition frames are manufactured to withstand the rigours and abuse modern mountain bike trails can dish out. That said, anything can break given just the right amount of time, wear, or misfortune. Everyone at Transition Bikes is committed to keeping you riding, and they realize every warranty and or crash replacement situation is unique. It is Transition's top priority to get you up and running as quickly as possible with a fair and honest solution, regardless of the situation.

To view your bike's warranty policy, please visit the Transition Support Page and select your model and version/year.

These policies apply to the original owner only. Transition Bikes will repair or replace any original purchasers individual frame parts or complete frame at their discretion.

You must register your frame on the Transition site with your serial number and provide proof of purchase to qualify for a warranty. In the event of an issue with your frame, Transition Bikes will determine whether it qualifies as a "Warranty Issue" or is covered under their "Crash Replacement Policy" (see below for details).

Transition warranty policy does not cover:

• Any labour costs associated to the warranty claim.
• Modifications from stock configuration.
• Normal wear-and-tear damage.
• Paint damage caused by the removal of protective tapes or adhesives.

In addition to the warranty, Transition offer a crash replacement scheme. Whether you bought your frame new or second hand, should you damage it, Transition will do their best to replace the damaged part for the best price they can, assuming the part is still available.

If Transition do not have the piece available, they will attempt to work out a crash replacement price on a replacement frame set. The customer is responsible for all shipping costs to get the frame to and from Transition Bikes.

Trek frames are covered by a lifetime warranty, with a 2 year warranty on paint, decals and suspension linkage parts.

Subsequent owners are covered for 3 years from the original purchase date (the date the bike was bought from us).

As usual, wear and tear, neglect or abuse is not covered.

Full details of the Trek Warranty are here.

Should you damage your Trek carbon frame in a crash, Trek will offer a discount frame.

More information here: Trek Carbon Care

All Yeti frames 2019 or newer, including the Switch Infinity link, are covered for life against damage due to manufacturing defects for the original purchaser from an authorized Yeti Cycles dealer. Paint and finish are covered for 1-year. Yeti will repair or replace, at their discretion, any frame they deemed defective.

There are a few conditions: you must register it online at YetiCycles.com/registration and you must take it to an authorized Yeti Cycles dealer for processing.

Warranty does not cover damage due to ordinary wear and tear, neglect or intentional destruction. Lifetime Warranty applies to all frames (2019 and newer). Model year 2018 and older frames will be covered under Yeti's previous warranty (5-year or 2-year based on time of purchase).

If you happen to have a crash or non-warranty situation, Yeti will get you back on the trail with a reasonable replacement price. The same conditions apply as with the Yeti warranty.