Specialized Stumpjumper Comp Alloy 2025
🔒 Buyer Protection Fee
This small fee helps keep your purchase safe. It covers:
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Secure Payments – funds are held safely until your bike is on the way.
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Fraud Protection – protection against scams and fake listings.
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Dispute Resolution – if there’s an issue, our team steps in to mediate and resolve it.
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Returns Support – guidance and assistance with returning a bike if needed.
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Support Guarantee – priority help from our team if anything goes wrong.
The fee is automatically added at checkout and is based on the value of the bike.
✅ Peace of mind, every time you buy.
The suggested rider height is the recommended height range for this size of bike as stated directly from the manufacturer for this specific model - It is the most reliable sizing metric.
However, please note that although these height ranges are recommended by the brand, they may not be accurate for everyone. Factors such as inseam length and preferred riding positions can affect the appropriate sizing.
If you see the label "not confirmed," it means either this brand doesn't provide recommended height ranges, or we were unable to locate it for this model. In these cases you you can refer to our general sizing guide
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Get any bike on MyNextBike shipped straight to your door for only £89.
£89 shipping includes tracked delivery, protective packaging, and buyer protection.
Our shipping partner will collect the bike from the seller and deliver it straight to you, fully assembled and ready to ride!
Every delivery is insured, and you can return it free of charge if the bike doesn't match the description. We aim to deliver your bike within 4-7 days of placing the order
When the seller is located nearby, you have the option to collect the bike in person. This is a great way to start riding as quickly as possible and save on shipping costs!
Whether you want to collect the bike in person or simply view it, we ask that you agree on a price first and follow the standard checkout process before arranging the meet-up.
This ensures that all transactions are completed securely on the MyNextBike platform, allowing us to provide buyer and seller protections. Please note that it’s against our policies to arrange a collection or exchange contact details before payment has been completed.
Collection Process
- Agree on a price with the seller
- Complete the purchase: You will be sent a payment link to finalise the transaction.
- Select “Collect in Person” at checkout
- Arrange the collection or viewing date
- Confirm whether you leave with the bike
What Happens After Collection
- If you decide not to take the bike, we will initiate a full refund on the same day.
- If you do leave with the bike, we will proceed with paying the seller.
You pay the platform, and we pay the seller. We securely hold the payment and release it to the seller two working days after you have received the bike, giving you the opportunity to request a full refund if the bike arrives not as described.
*Add at checkout
Take the risk out of buying second-hand. Our team of professional mechanics will fully inspect, service, and safety-check your bike before it’s delivered. Brakes, gears, tyres, and frame condition are all carefully reviewed and tuned where needed.
Your bike will arrive road-ready and in top condition — no surprises, no hassle.
Get total peace of mind with every ride.
All purchases through MyNextBike are covered by Buyer Protection
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About this bike
Seller Description:
Used Brand New unused won on a competition through my employer unwanted make me an offer. Specialized Stumpjumper Comp Alloy Mountain Bike 2025 Gloss Smoke/Cool Grey Season:2025 Brand:Specialized Code:25-221397-SMK/GRY The Specialized Stumpjumper Comp Alloy Mountain Bike is here to obliterate every trade-off in the trail game. Devour bumps like a big bike? Check. Short-travel control, playfulness, and efficiency? Double check. How about a heaping helping of personalization to make it perfect for the only rider who really matters—you? Check, check, check. BREAKTHROUGH CAPABILITY: GENIE Shock Technology combines a poppy, playful ride with a bottomless DH feel. ULTIMATE CONTROL: Measurably better traction than “Bike of the Year” Stumpjumper EVO. UNMATCHED PERSONALIZATION: Six-way geometry adjustment, mixed wheel or 29”, tunable spring curve, and more. GENIE—The Magic Carpet Ride: The biggest innovation on the Stumpjumper 15 Alloy is GENIE. This patent-pending air spring technology we invented grants every trail rider three wishes: the maximum grip and traction of a coil spring feel, better bottom-out prevention than a standard air spring, and the ability to tune mid-stroke and end-stroke support independently. ILLUMINATING GENIE: GENIE combines the control-enhancing linear spring rate of a coil spring through the “bump zone” with the progressive spring rate of an air spring at the end of the stroke to avoid bottom-outs. Truly, it's the best of both worlds – coil and air – with extra tunability. Say goodbye to compromises and hello to the future of riding. WHAT BUMP?: With 16.3% better bump force management than a traditional air-sprung shock, GENIE makes the Stumpjumper 15 Alloy ride like a bike with more travel. For example, the Stumpjumper 15 Alloy (with 145 mm rear wheel travel) and the Enduro (170 mm travel) both use 101 mm of travel to absorb a 1080 N bump force. TRACTION GALORE: Extensive field testing proves that Stumpjumper 15 Alloy with GENIE delivers 57% better traction than a standard air-sprung shock because GENIE technology gives you supple, coil-like performance, which keeps the wheel in contact with the ground a greater percent of the time than a typical air spring would. BYE, BYE, BOTTOM-OUTS: 39% fewer bottom-outs than a standard air spring. During big hit events, you benefit from the rising rate in the last 30% of the GENIE stroke. Because of this two-stage, pronounced rising rate, GENIE reduces the frequency and severity of bottom-outs. HONED GEOMETRY: This bike’s geometry delivers big bike capability when you need it, a nimble feel in tight sections, and lively, efficient climbing manners. The generous cockpit centers you on the bike, optimizing traction and corner control. The low bottom bracket, slack head tube angle, and optimized fork offset keep things stable in the rough. RIDE YOUR WAY: The Stumpjumper 15 Alloy seamlessly integrates benchmark geo adjustability, making it the most personalizable trail bike ever. Six distinct geometry settings allow you to hone performance for any style, any terrain. The head angle and bottom bracket height can be fine-tuned for stability or clearance. WHEEL CHOICE: With the aftermarket shock links, you can choose between big wheels front and rear or mix things up with a 27.5” rear for a more responsive and playful ride. No matter what you choose, geometry is unaffected. CARRY IT ALL: SWAT on Stumpjumper 15 Alloy elevates downtube storage, an innovation they pioneered. MORE RELENTLESS THAN YOU: The full-suspension bikes are built to be relentless, designed to endure years of hard riding, and backed by the best support and policies to keep you on the trail. The unbeatable lifetime, no-questions-asked replacement suspension pivot bearings to the original owner is just one way they've got you covered. Specialized Stumpjumper Comp Alloy Mountain Bike Highlights All-new M5 alloy frame with SWAT door integration Robust Specialized alloy wheels with sealed cartridge bearings Ride Dynamics tuned FOX FLOAT Performance with Specialized GENIE patent-pending air spring technology provides maximum grip and traction found in a linear coil spring, bottom-out prevention found in a progressive air spring, and the ability to tune mid-stroke and end-stroke support independently. 2-position open and firm damper adjustments. Eat up the chunkiest trails with the FOX FLOAT 36 Rhythm fork with GRIP damper Performance-focused and durable Shimano SLX drivetrain Big stopping power from TRP Trail EVO 4-piston brakes Trustworthy time and time again X-Fusion Manic dropper post Lifetime replacement of suspension pivot bearings to the original ownerUpgrades:
Damage:
Key Details
Technical Specifications
Frequently asked questions
I’d like to buy this item. How do I proceed?
Ready to buy a bike? Here’s how it works:
- Make an Offer:
Start by submitting an offer to the seller. You can offer the asking price or suggest a lower amount—it's up to you! The seller will then have the option to accept, decline, or make a counteroffer. - Secure Payment:
Once the seller accepts your offer, you’ll receive a payment link via email. You can securely complete your purchase using a credit/debit card, PayPal, or Klarna. - Order Confirmation:
After payment, the seller will receive an order confirmation so they can arrange fulfilment of the bike.
You can either collect the bike in person or arrange to have it shipped to you by our specialist delivery partner.
I'd like to negotiate the price, how do I do this?
Whether you would like to purchase the bike for asking price, or try to get a better deal, we ask all buyers to submit an offer to the sellers first. Once an offer is accepted, you will be sent a payment link to complete the purchase!
- Click the “Make an offer” button on the listing page.
- Enter your contact details and the amount you’d like to offer.
- The seller will either accept, decline or make a counteroffer.
- You will receive the outcome via email so keep your eyes peeled!
- Once you’ve agreed on the price, you’ll be sent a payment link to complete the purchase.
- Your new bike will be shipped to you!
How can I contact the seller?
If you would like to ask the seller a question about the bike, then please submit your query using the form above. The seller will receive your question by email.
If you have any questions on shipping/collections or returns, then feel free to reach out to us directly.
How long does delivery take, and how much does shipping cost?
Shipping costs are fixed at £89 no matter where you're living in the U.K.
We aim to deliver your new bike within 4-7 days* of placing an order. Here’s the process:
- Once an order is placed, we contact the seller to arrange a suitable date for our delivery partner to collect the bike.
- The bike will then be delivered to you, typically the same day it’s been collected from the seller.
- You’re ready to ride! Our couriers collect and deliver the bikes without the need for them to be disassembled.
Shipping costs are fixed at £79 no matter where you're living in the U.K.
*Please note that delivery times may be longer if the seller is not at home for the couriers to collect the bike within the 4-7 day period.
Can I collect in person?
Yes! You can collect the bike from the seller yourself. we ask that you agree on a price first and follow the standard checkout process before arranging the meet-up.
This ensures that all transactions are completed securely on the MyNextBike platform
COLLECTION PROCESS
- Agree on a price with the seller
- Complete the purchase: You will be sent a payment link to finalise the transaction.
- Select “Collect in Person” at checkout
- Arrange the collection or viewing date
- Confirm whether you leave with the bike
Can I test ride the bike first?
Yes you can! It's the same process as if you are collecting the bike. We ask for buyers to agree a price first and follow the standard checkout process. This ensures that all transactions are completed securely on the MyNextBike platform, allowing us to provide buyer and seller protections.
How does buyer protection work?
Our Buyer Protection policy is in place to prevent any mis-selling on the platform and ensure you get exactly what you paid for! If the bike arrives “not as described”, such as there is damage that wasn’t disclosed in the listing, or the specifications are wrong, then you can return it to the seller free of charge. Simply contact our support team and we will arrange this for you. To learn more, please read here.
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