There are three reasons for this:

• The COVID-19 boom is over: Many mountain bikes from 2020 to 2022 are now hitting the market all at once, creating a massive supply.
• New bikes at rock-bottom prices: Dealers are clearing out inventory with 30 to 40 percent discounts on new bikes.
• Professional competition: Reconditioners and refurbished sellers are flooding Ricardo and eBay with inspected used bikes that come with a fresh warranty. Private sellers have a tough time competing against this.

E-mountain bikes: The battery as a risk

With e-MTBs, there’s an additional specific problem: the battery. The buyer cannot assess the condition from the outside unless the seller provides a diagnostic report. That is exactly what is often missing. Yet the battery’s condition can certainly be checked: Bosch via the eBike Flow app or a specialist retailer, Shimano via E-Tube. Charge cycles, remaining capacity, error history. Failing to provide this information at the time of sale gives the buyer every reason to haggle over the price or not buy at all. A replacement battery can easily cost several hundred euros. That is the amount a cautious buyer mentally deducts from the offer. Add to that the motor risk: Outside the warranty, drive systems quickly become expensive because replacement is often the only option instead of repair. That costs more than some e-mountain bikes are even worth.

Mechanical MTB: No battery risk, but often a standard problem

Mechanical mountain bikes are easier to sell. No battery, no motor risk, every mechanic knows the parts. But here, too, the same applies: A technically flawless bike can still be uninteresting today. The problem is a lack of compatibility and a lack of “standards.” Selling a frame with manufacturer-specific custom solutions—such as exotic shock mount dimensions, complicated cable routing, or a frame without a standard derailleur hanger—scares off potential buyers. The problem for the used bike buyer is simple: such brand-specific solutions tie them to expensive original parts, often make modern upgrades impossible, and drive up service costs at the mechanic’s shop. In 2026, mountain bikes with proven, maintenance-friendly standards will sell best.

Damage control: What can still help sellers now

• Research realistic prices: Online listings often show only the sellers’ asking prices. However, the actual value of a mountain bike corresponds to the amount effectively paid upon completion of the sale.
• Include a diagnostic report: For wireless systems and e-mountain bikes, providing written proof of charge cycles and error history builds trust and limits the bargaining power of price-haggling buyers.
• Document service history: Receipts for the last fork or shock service count for more in today’s market than a cosmetic upgrade.
• Sell parts individually: The market for complete bikes is saturated, but replacement parts are expensive. High-quality components (wheelsets, forks, brakes) often fetch a higher price when sold individually than as part of a complete package.

For buyers, this is the best market in years. But anyone striking now should keep one ironclad rule in mind for the future: What is exotic and fully integrated today will be nearly impossible to sell tomorrow.