Name: Decathlon Rockrider ST50, 21 Speed Aluminum Mountain Bike, 26", Unisex Black, Medium
Brand: Decathlon
SKU: 104424462
Price: 348 USD
Availability: InStock
Rating: 3.9 (271 reviews)

Why Walmart Pre-Owned?

for additional details & specific condition qualifications.

Walmart Pre-Owned allows you to find previously owned, well-cared-for items from Walmart’s trusted & performance-managed sellers. Shopping Pre-Owned allows you to bring home the best-quality picks at even lower prices, in addition to extending the life of an item & reducing waste. Find your favorites & shop a range of conditions in every category.

Each Pre-Owned item listed comes from Walmart’s trusted performance-managed sellers, to ensure you get quality items.

Save even more on top brands & your most-loved items.

Don’t love it? Most items offer a 30-day* free return policy, for added peace of mind.

Shopping Pre-Owned helps in extending the life of an item & reducing waste.

 here

Hardlines-PreOwned-ItemPage-ProgramCard 

You get 30 days free! Choose a plan at checkout.

#46474A

I want shipping & delivery savings with

#0071DC

New Item Page - Fulfillment Module Module, Monday, March 13, 2023, 9:14:42:77 pm

BuyBoxAds-dweb

dWeb:New Item Page - Item Digital Rewards Module, Monday, March 13, 2023, 9:14:11:88 pm

New Breadcrumb Module, Wednesday, November 30, 2022, 8:57:51:81 pm

Sellers Secondary BuyBox

NEW BrandBoxDisplayAd Mon Jan 22 2024 11:50 AM PST

DESKTOP_New Add To Cart Module, Monday, March 13, 2023, 9:23:26:10 pm

Learn more

See if you’re pre-approved with no credit risk.

dWeb Capital One Banner Web Module - Desktop - 4.29.21

Price Match Policy

Prices, terms, and availability may vary online, in stores, and in-app. Items ordered online may be available for pick up at store, shipping, or delivery. Some items may be available from Marketplace Sellers, who set their own prices, and are not eligible for price match. Items sold online by Walmart may be eligible for price match. See our

dWeb Legal Price Disclaimer Module, Friday, February 03, 2023, 10:32:52:27 am

Make these frames your own

WomanWithGlassesBlueCircle-2

New! Make these frames your own and get prescription sun lenses.

New! Customize these frames with prescription lenses that match your vision needs.

Non-prescription sunglasses

Prescription sunglasses

How do you want your frames?

Dweb LensCustomizationBuyBox Tue Oct 17 2023 8:37 AM PDT

dWeb MP Extra Savings (PromoDiscount) Tue Feb 20 2024 2:49 PM PST

New!

More savings, less stress.

Subscribe to get what you need, when you need it.  Cancel anytime.

k2-_a94389a3-a383-4f60-ac15-2c8aaf17c372.v1

How it works

dWeb - New Item Page - Subscription Options Module Module, Wednesday, March 15, 2023, 1:58:05:80 pm

dWeb New Related Search Module, Tuesday, March 28, 2023, 9:39:42:58 am

dWeb Payment Plans Module, Thursday, February 02, 2023, 10:34:25:26 am

dWeb Price Information Module, Tuesday, February 07, 2023, 8:58:43:19 am

dWeb ProductFlags Module, Tuesday, January 31, 2023, 2:53:18:55 pm

dWeb SecondaryOfferBoostModule AB Fri Sep 15 2023 10:50 AM PDT

General Warnings Placeholder

HRF_dWeb_PrevPurchased ReviewPurchaseBadges Wed Feb 21 2024 11:16 AM PST

Marquee Display Ad IP BTF Global

Multiple SocialProofBadges Wed Feb 21 2024 11:03 AM PST

NEW AddonServicesRedesign dWeb Wed Sep 13 2023 1:25 AM PDT

NEW AddToCart Wed Sep 20 2023 4:30 AM PDT

New AlertContainer Module, Monday, February 27, 2023, 8:05:31:02 pm

New BuyBoxRefurbishedMessage Module, Thursday, February 02, 2023, 10:35:03:28 am

NEW BuyBoxRefurbishedMessage Wed Sep 27 2023 2:57 AM PDT

New dWeb Buy Box Ratings and Reviews Module, Friday, February 03, 2023, 10:39:02:52 am

Save up to 35% on additional pairs

Terms & conditions

Purchase multiple pairs of eyeglasses (frame & prescription lenses) to get 20% off each additional pair of glasses after your first order. Multiple qualifying glasses must be purchased during a single online transaction. Qualifying purchases include: a complete pair of prescription eyeglasses (frame & prescription lenses) or an insurance order for a complete pair of glasses. Insurance benefits should be maximized on the first order (if applicable).

Discounts must be applied to qualifying orders that are of equal or lesser value. For 35% off, purchase a complete pair of sunglasses in addition to a second complete pair. Qualifying purchases include any prescription polarized or non-polarized sun lens & frame purchase. The least expensive pair(s) will receive the 35% discount.

NEW dWeb VisionPromoDiscount Tue Oct 17 2023 8:48 AM PDT

WMHealthServicesPetPharmacy

We'll verify prescriptions with your vet.

This item requires prescription 

Learn More

NEW EducationalBanner Wed Jan 03 2024 1:28 PM PST

New FSA HSA Badges Module, Monday, March 13, 2023, 9:17:58:10 pm

#515357

#0071dc

NEW Fulfillment Wed Sep 20 2023 4:55 AM PDT

NEW GiftingEligibilityBadge Wed Sep 20 2023 4:42 AM PDT

NEW GiftingNote Wed Sep 20 2023 4:43 AM PDT

New Insurance Badging Module, Monday, March 13, 2023, 9:17:27:54 pm

NEW ItemBackInStockNotifyMe Tue Jan 09 2024 10:44 AM PST

New Item Page - BTF Marketing Content Placeholder Module, Monday, August 15, 2022, 8:53:04:04 pm

New Item Page - Buy Box BrandLink Module, Tuesday, January 31, 2023, 2:53:51:15 pm

UX-Illustration-Export

Manage Prescriptions

Congrats! You're one of the first pet parents to try PetRx Beta. You can easily

New Item Page - Educational Banner Module Module, Monday, July 10, 2023, 10:53:41:13 am

New Item Page - Gifting Eligibility Badge Module, Monday, March 13, 2023, 9:16:24:97 pm

New Item Page - Gifting Note Module, Monday, March 13, 2023, 9:16:53:59 pm

New Item Page - Hard Bundles Module Module, Wednesday, May 03, 2023, 8:05:20:16 pm

New Item Page - Physical Gift Card Options Module, Monday, March 13, 2023, 9:13:38:03 pm

New Item Page - Product Feedback Placeholder Module, Thursday, July 01, 2021, 10:06:34:87 am

New Item Page - Product Highlights Placeholder Module, Friday, July 07, 2023, 4:23:12:78 pm

New Item Page - Product Images Module, Monday, March 13, 2023, 9:11:14:73 pm

New Item Page - Product Ingredients Placeholder Module, Monday, September 20, 2021, 11:16:28:55 am

New Item Page - Product Return Policy Module, Monday, March 13, 2023, 9:15:45:32 pm

New Item Page Product Sticky Buy Box Module, Wednesday, March 22, 2023, 10:37:31:45 am

New Item Page - Product Variants Module, Monday, March 13, 2023, 9:12:12:78 pm

New Item Page - Refurbished Info Placeholder Module, Thursday, July 07, 2022, 7:16:32:83 pm

Sell on Walmart

New Itempage Sell On Walmart Module

New Item Page - Sold And Shipped By Module, Monday, March 13, 2023, 9:15:15:89 pm

New Item Related Shelves Module, Wednesday, July 21, 2021, 10:06:24:65 am

NEW LegalPriceDisclaimer Wed Sep 20 2023 4:24 AM PDT

New Lists And Registries Module, Monday, March 13, 2023, 9:20:39:60 pm

NEW MarqueeDisplayAd Mon Jan 22 2024 11:47 AM PST

New Non Config Bundles Module, Monday, March 13, 2023, 9:22:47:13 pm

One card 2.svg

getStarted

New One Debit Card Banner Module, Friday, March 24, 2023, 2:51:24:44 pm

NEW PaymentPlans Wed Sep 20 2023 4:21 AM PDT

NEW PhysicalGiftCardOptions Wed Sep 20 2023 4:40 AM PDT

NEW PriceInformation Wed Sep 20 2023 4:12 AM PDT

New Product Basic Info Module, Thursday, February 02, 2023, 10:33:55:14 am

NEW ProductBasicInfo Wed Sep 20 2023 4:19 AM PDT

New Product Medical Guides Placeholder Module, Friday, January 27, 2023, 10:34:52:34 am

New Product Name Module, Tuesday, January 31, 2023, 3:22:20:63 pm

NEW ProductReturnPolicy Wed Sep 20 2023 4:42 AM PDT

New Service Disclosure Module, Wednesday, March 15, 2023, 1:53:08:90 pm

NEW SoldAndShippedBy Wed Sep 20 2023 4:41 AM PDT

NEW Variants Wed Sep 20 2023 4:31 AM PDT

Nutrition Value Placeholder

Product Description Placeholder

Product Directions Placeholder

Product Indications Placeholder

Product Specifications Placeholder

Product Warranty Placeholder

Reviews Placeholder

Skyline - rweb

More items to explore

SPCarousel2-rweb

Products you may also like

Complete The Look Module Placeholder

OOS Carousel Above Image

NEW ItemCarousel Tue Apr 16 2024 10:00 PM PDT

See Similar Items

Item Carousel - Recommendations 1

Item Carousel - Recommendations 2

Recommendations for you

Item Carousel - Recommendations 3

Item Carousel - Recommendations 4

Frequently Bought Together

New SoftBundles Module, Wednesday, May 03, 2023, 10:17:01:79 am

True

New Comparison Chart Module, Thursday, May 04, 2023, 3:43:45:98 pm

Decathlon Rockrider ST50, 21 Speed Aluminum Mountain Bike, 26", Unisex Black, Medium

<ul> <li>100% aluminum: the frame of the Rockrider ST 50 mountain bike has been designed in aluminum to combine strength and lightness. Thus, your pedaling is more efficient.</li> <li>Its "sloping" type geometry makes it easier to step over for both men and women.</li> <li>The 80mm front suspension lets you overcome your first obstacles with peace of mind on slightly uneven trails. Its mechanical spring is a guarantee of reliability. Above all, the fork is easy to maintain.&nbsp;</li> <li>This mountain bike has no rear suspension. &nbsp;It is a so-called "semi-rigid" mountain bike: ideal for starting and getting started on your first mountain biking tours.</li> <li>3 plates of 7 speeds, 21 speeds!.&nbsp;</li> <li>2 rotating handles that are easy to handle.</li> <li>On the left (trays): you manage the ascent/descent.</li> <li>Right (speeds): you adapt your effort more precisely.</li> <li>Triple chainring 22, 32, and 42 teeth + protection against grease.</li> <li>MICROSHIFT FD-M20 front.</li> <li>Derailleur -MICROSHIFT RD-M25.</li> <li>Rear derailleur -MICROSHIFT MS25 revolving handles, with speed indicators.</li> <li>SHIMANO 7-pinion cassette 14 to 28 teeth TZ500</li> <li>Wide and solid chain KMC Z51.</li> <li>The saddle attachment (welded) of the ST 50 prevents any movement of the saddle during your ride. And because your comfort is our priority, we offer you an exclusive ERGOFIT saddle, wider, with a profile in the shape of a "hammock".</li> <li>Easily adjust your saddle height with the 350mm long, 29.8mm diameter steel MTB seat post.</li> <li>Brake effectively thanks to the 2 V-Brake type pad brakes. These brakes are made up of 2 calipers equipped with pads that exert a more or less strong pressure on the rim to slow down or stop the rotation of the wheels.</li> <li>Thanks to the specific design of the ST 50's aluminum brake levers, only two fingers are sufficient to brake.</li> <li>With its lightweight 26-inch single-wall wheels, you can easily get started on mountain biking trails. DRY 26 x 2.0 tires are the most suitable for hiking on dry terrain. The central part is very rolling, while their side crampons provide good grip in turns.</li> <li>Obstacles, wheelies, skids, small jumps? For your safety, wheels with "double wall" rims (more resistant) will be more suitable.</li> </ul>

Ready to go onto the bike trails and need a Mountain Bike that is suited right for you. Our Decathlon Rockrider ST50, 21 Speed Aluminum Mountain Bike, 26&quot;, Unisex, Black, Medium is designed for your first mountain bike ride in dry weather for up to 1 hour and 30 minutes. Recommended Medium Bike height M: 5'5&quot; - 5'9&quot;. The Mountain Bike has a total of 21 speeds, making it faster with smoother transitions and pedaling. Riding comfortably is crucial, the Bikes frame position is raised having your back straight at all times. Having responsive brakes is key for a safe ride. The Bikes aluminum brake level design allows braking with only two fingers. Riding Mountain Bikes for beginners may be uncomfortable riding for long periods. Our Bike has an ERGOFIT saddle that is wide and has a shape of a hammock. With a tire size of 26&quot;, the tires will absorb any vibrations or shocks whenever riding over any trail. The Bike frame can hold a bottle cage, saddlebag, mudguard, stand, and pannier rack. We offer a lifetime warranty on the Bikes frame, stem, and handlebar. This Bike does not come included with a Kickstand or a Bottle cage.

Features

Brand

Bicycle Type

Bicycle Wheel Diameter

Age Group

Number of Speeds

Color

Frame Material

Accessories Included

Bicycle Tire Size

Bicycle Frame Size

Assembled Product Dimensions (L x W x H)

WARNING - California Proposition 65

Walmart Protection Plan by Allstate

Get years of protection for just pennies a day.Plan covers:<ul><li>Mechanical & Electrical Failures</li><li>Item Failures During Normal Use, or from Normal Wear & Tear</li><li>Other Common Malfunctions</li></ul>Plan includes:<ul><li>24/7 Customer Support</li><li>Easy Online Claims</li><li>Fast Repairs or Replacements</li></ul>Protect it today. Enjoy it for years.Simply add a Walmart Protection Plan to your order and checkout as usual. There is no need to register your plan for it to be active. We?ll send plan details to your email address after purchase.Award-winning protection backed by AllstateAllstate has been protecting people and the things they love most for over 85 years. So you know your purchase is in good hands.

Get the best value on product protection including fast repairs or replacements.

Protect your purchase

title_shipToHome_freight

as low as $23/mo with <img src="https://cdn-assets.affirm.com/images/black_logo-white_bg.jpg" alt="Affirm">

Ready to go onto the bike trails and need a Mountain Bike that is suited right for you. Our Decathlon Rockrider ST50, 21 Speed Aluminum Mountain Bike, 26", Unisex, Black, Medium is designed for your first mountain bike ride in dry weather for up to 1 hour and 30 minutes. Recommended Medium Bike height M: 5'5" - 5'9". The Mountain Bike has a total of 21 speeds, making it faster with smoother transitions and pedaling. Riding comfortably is crucial, the Bikes frame position is raised having your back straight at all times. Having responsive brakes is key for a safe ride. The Bikes aluminum brake level design allows braking with only two fingers. Riding Mountain Bikes for beginners may be uncomfortable riding for long periods. Our Bike has an ERGOFIT saddle that is wide and has a shape of a hammock. With a tire size of 26", the tires will absorb any vibrations or shocks whenever riding over any trail. The Bike frame can hold a bottle cage, saddlebag, mudguard, stand, and pannier rack. We offer a lifetime warranty on the Bikes frame, stem, and handlebar. This Bike does not come included with a Kickstand or a Bottle cage.

Size

L: 5'9" - 6'0

M: 5'5" - 5'9"

S: 5'1" - 5'5"

XL: 6'0 - 6'5"

large Rockrider mountain bike is perfect for me, I'm 62 years old at 6'5"  Well built, easily assembled and I really enjoy riding it. Instructions were very plain but i didn't need them for basic assembly is all that is required.  Only negative was the one quick release for front tire was not installed and loosely packaged but easily installed. 5 star quality

Great high quality bike

If you're going for a inexpensive bike to get you through all terrains, then this is the one. Honestly, I was a but bit skeptical about getting a mountain bike for regular commute, but the 21 hear combination that this bike provides is something that makes life way easier. No complaints whatsoever! And regarding the aesthetics, well I can't stop looking at it ❤️

New definition of love!

This was $150 and a great value at this price. Pretty easy to set up. Light weight. Smooth ride. Good instructions. Unsure about its lifespan but I mean. Cheapest bike around. Easy gear shifting.

Great value.

Easy to assemble. Has a small seat so you may want to replace it as I did but overall it's a nice bike.

Great bike especially for the price

Saw bike, read reviews, glad i bought it. Easy to assemble, no missing parts, gears shift great, brakes work and it rides real smooth.  I  added a stem riser to handle bars and gel seat for added comfort.

Bike nice looking to guy 30 minutes to put together. I gave it a five only because I have not taken it out yet and I have to get a bigger cushion seat

Worth the price

I found something broken when i receive the bike. See the photos.

A little disappointed

These bikes are great. The can be a problem. You need to carefully examine this kind of bike and have them sitting up and around because this would be my 4 bike returned and maybe 5 ordered within 2 months. The XL was extended huge and long i could barely reach the petal or brakes so i returned for a Large which also had to be returned because of the gears. Its a 21 speed    and they can come locked leaving your gears damaged, the bike will not move its back wheel backwards or forward leaving you to shift the gears and the gears are confusing because the left gear has 3 numbers a few bars that follows each number and will only shift a little pass 2 and a few bars dont no why it will not go up to the max. The right gears go from 1-7  some worked and some didn’t, not all the bikes ive ordered and had to return gears worked properly or worked the same it varied on what condition your gears were in and was irritating and annoying. Some gears went to 7 some didnt. It can be both left and right gears or just one. If your not careful it can get stuck leaving you to return the entire bike. My daughter had the medium decathlon Rockrider ST50 for Christmas and her gears were not having it. We only got it to move forward as your riding it but will not move at all if not petaling but after we put air in the tires evenly and she got in the main entrance the tires burst while she was still taking off and i heard it and thought she had crashed. The Large gears were shifting alot and i hadnt touched the gears and they began to make so much noise, it was tightening up and loosing the gears back and forth along the ride and the noise would intense. I thought it was the lights i had on the bike bit when i took them off a took for test i was the gears on the bike.  They are very very fast and you dont have to do alot of petaling. The brakes are better than any other bike ive had in my possession. You can tighten up the gears and brakes. The tires does grip the road as it should. The seat doesnt move everything is tight but the seats are like bricks and they hurt the groin area and buttocks very uncomfortable to sit on while riding almost made me walk i just petaled fast to get to destination quickly 😅. You have to ajust the bike handles with silicone because i hate the way i have to bend over and lean more to keep control of strearing properly and braking when needed so it can line up and is adjusted for back support it can hurt my upper and lower back area. I like how it rides very smooth and smoothly jump off the side walk and smoothly ride up humps.  Very easy to assemble the front wheel just a few things need to be tighten like handle bars, bike seat, petals and accessories. They come with tools but the screws to sheild the gears can be missing often. I love the bike over all. It can be the gears that is a big issue for us.

Great Bike! Gears can be a huge problem.

I bought this bike around June 25 as a gift for our daughter! This bike requires assembly. The directions only include pictures and NO words which makes it very hard to assemble. My hubby took a day off work to assemble this for our teen! It took many hours and he had to search YouTube for a video for support on the tough parts.. Finally, after the bike was all assembles he noticed a missing part-a quick release spring for the front tire. It is referenced in the video but did NOT come with the bike. We called Walmart. They said return it. Hubby says no way, not after all the time putting it together. Currently it is decorating our living room and no one is riding it. I emailed the manufacturer about the part. I am still waiting. Next, we will take it to a bike shop, and hope they sell the quick spring release. This bike was a great deal in purchase! Too bad the directions are extremely challenging to say the least! It is such a puzzle as to what to do next!

Bike Puzzler!

I cannot attach the front wheel to the frame. The wheels are the wrong size or the screw is too short. I need a new wheel or my money back.

I cannot attach the front well to the frame.

Decathlon Rockrider ST50, 21 Speed Aluminum Mountain Bike, 26", Unisex Black, Medium

How do you want your item?

Jasion Electric Mountain Bike for Adults, 26" Tires, 350W Brushless Motor, 40 Miles Commuting Range, Front Fork Suspension, Shimano 7 Speed, EB5 Black