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Explore 540, Touring Mountain Bike, 29"
Comfortable, stable, and great control: fly over bumps with the Explore 540 mountain bike's 29" Boost wheels (27.5" in size S), Shimano drivetrain, and Air fork!
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San Francisco, 735 Market St. Options
Select an available color and size to see options.
About this item:
- Upgraded do-all mountain bike: 1 x drivetrain with hydraulic disc brakes
- Shimano Deore 10spd drivetrain
- 120mm Front Suspension X-fusion RC 32 air-oil shock
- Air fork, 180 mm/160 mm brakes, wide tires
Product Videos
Product Features

Cycling Comfort
Enjoy the raised position, adjustable stem, 120 mm suspension, and hammock saddle
Directional Control
Control your trajectory: Air fork, 180 mm/160 mm brakes, wide tires and handlebar
Efficiency
Smooth riding: 29" wheels (27.5" in S), Shimano 10-speed chainring
Ease Of Use
Change speed with one hand, without even thinking: Single chainring drivetrain
Lifetime Warranty
Rockrider offers a lifetime warranty on the frame, handlebars, and stem.
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Product Customer Reviews

After having done 3 outings with my RockRider Explore 540 mountain bike I am not disappointed with my Purchase whether it is the position on the bike or its handling I am very happy with it To date everything is perfect
Not disappointed with my purchase, very practical and comfortable
y
Very good mountain bike. The single chainring still limits use on rolling terrain. The rugged places are therefore a playground and there you will not be disappointed. Comfort, handling nothing to say. Heat up the thighs!
Great mountain bike - good handling, very easy to control hydraulic brakes, comfortable saddle. I would like to choose it again.
A bike with the best price-quality ratio on the market, everything arrived great after one muddy trip :), the only thing missing is the possibility of installing larger sprockets at the front, the only minus is the waiting time for the bike - about 3 weeks...
I cycled about 170 km. for now, 3 routes of 50 km and several smaller ones (5-10 km). The geometry is different than my previous Kross "XC", size L. The frame is much lower and generally smaller than in Kross. I bought XL (I'm 185 cm), so if anyone is wondering about the size, I recommend trying it on. I have to get used to the 1x10 system, I had 3x9. The brakes break in, the front is fine, but the rear has no feel at all, it jerks and knocks terribly when braking harder, and the wheel can suddenly lock up without warning. Adjusting the clamp helped a bit. My weight is approximately 110 kg. If I have time, I will go to the service center... The shock absorber is ok, but despite the stiff axles, the front disc can rub against the pads... The saddle is comfortable, the seatpost slid down on the first ride (there is some grease on the tube), the handlebar was curved to the wheel axis. the wheels are poorly tensioned, the stickers are difficult to see. but the derailleur is adjusted perfectly. the chain is a bit short, but with the crown (I replaced it) with a 32t one, there was no need to extend it. I came across a bike at a price of PLN 3,399, so I bought it.
Received with a defect on the thread of one of the two pedals, making it completely impossible to screw in despite all the precautions and care that I have taken. After all the time spent trying in vain to screw it in, this defect obviously ended up damaging the crankset by smoothing out the screw hole. Condemned to return the bike to the store even though I had it delivered to avoid having to transport it.
Yes a lot
Bought as a replacement for a full suspension with 26" wheels and multi-platform at the front. I'm very happy with it, very easy to handle, very stable and the 29" wheels are just a joy!
Extremely delighted, very good material
Recently bought this bike as a basis for a project, I plan to turn it into a so-called monster crosser. Then this is the least expensive bicycle that is for sale with thru axles. The thing looks good in my opinion, although a bit on the boring side. Since I like to ride with an oval front chainring, I ordered a nice red anodized sprocket from Garbaruk, it looks great, especially now that red bottle cages have also been screwed on. On the road for the first time after installing a pair of SPD pedals. It is immediately noticeable that the largest and smallest rear sprockets can be used with great difficulty. This can of course be solved, but upon delivery the bicycle should be ready to ride, as stated on the label. After properly braking the Tektro disc brakes, the brakes appear to be reasonably adequate for flat terrain, but their effectiveness is, for example, far surpassed by Shimano's MT200, Shimano's cheapest brake, in all areas (braking force, dosage, required squeezing force). A big disappointment is the standard tubeless rim tape. Due to particularly sloppy installation (crooked, many air bubbles, cracks), the wheels cannot be made tubeless without installing a new rim tape yourself. That is not a big challenge if you are a hobbyist who is familiar with tubeless things, but it is not appropriate and is just bad. What is also immediately noticeable is that, completely in keeping with current fashion, an extreme mountain gear has been installed, so that in the flat Netherlands and even in the Twente 'mountains' you only use the four smallest sprockets of the cassette. The other gears are so small that they only become useful if you do extreme climbing in the Alps. I quickly installed another cassette so that it is much better suited to Dutch flat conditions. It also turned out that one of the valves was broken, which meant that no air could be released from the rear tire, which is of course not useful if you are aiming for a tubeless set-up. Since the only solution turned out to be to puncture the tire to get it off the rim, Decathlon ordered a new tire. Delivery takes quite a long time, you have to wait a week and a half before your order arrives, while delivering a sprocket from Poland to the Netherlands only takes 2 days. That really needs to be improved Decathlon! What also needs to be improved is the knowledge of the employees. A tire in the wrong size was ordered because the employee does not know what size wheels the bicycle has. So now I had to wait another week and a half. Now some things seem very negative, but it is not, after some tinkering the bike turns out to ride fine. The thing feels great, accelerates smoothly thanks to the tubeless set-up and single tracks are a pleasure. Now add a 'crooked handlebar' and the monster crosser is complete.
It's a very comfortable mountain bike, rather light but far from being a race bike like the 900GX. We are not high-end like the 900GX but far from entry-level as well. I gave it 3 stars for performance because we are on a bike more for comfort than speed but not on a heavy weight either. I like the explore range (I have the E-EXPL700) and I took it as a nice bike that I would leave at my parents' house and lend to my mom (so the 27.5 inch size S doesn't bother me) during my absence so that she can see the bikes are a little light and even more comfortable and lighter than hers which weighs 14.5 kg. I am convinced that she will appreciate it (while the 900GX which is well above it would not suit her, it is too designed for speed) because it is a very comfortable bike but while being rather light. Its price is very reasonable.
Hello, The fit of the bike was not good. I bought it at the Huixquilucan branch. A pedal came loose and fell off. After two weeks the slow rear deflated due to not having the pivot properly adjusted. Since I am from Toluca I have not been able to take it but I hope to take it soon at least to the Metepec branch and have it inspected as it should. Thank you.
Even after supposedly another repair and replacement of the brake disc, the knocking did not disappear. In fact, it looked like the disc had not been replaced. So I contacted the store manager and the whole bike was replaced with a new one, everything is fine there. Probably a defective piece, or possible damage during transport.
Size Guide

Additional Product Information
Composition
Bike frame
- 100% Aluminium 6061
In a nutshell
Weight: 28.2 lbs in size M (without pedals) Frame material: Aluminum Type: Hardtail Wheel size: 29" (M / L / XL), 27.5" (S) Fork travel: 120 mm Drivetrain: 1x10 Brakes: Hydraulic Seat post: Aluminum Frame, stem and handlebar warranty: lifetime
Weight
S: 27.8 lbs M: 28.2 lbs L: 28.3 lbs XL: 28.5 lbs Net weight without pedals
Frame
Composition: 6061 butted aluminum 148 mm x 12 mm Boost rear axle Bolt through axle 73 mm threaded bottom bracket (BSA) Protective cover for dropper seat post cable and housing 31.6 mm seat tube Tapered head tube 2 bottle cage mounts (1 on size S) / Pannier rack mounts
Drivetrain
Shimano Deore 30 T single chainring (compatible with 32 T) 175 mm crank "Thru axle / external bearing" bottom bracket 10-speed shifter and rear derailleur 11-46 cassette KMC X10 chain
Suspension
Suntour RC32 X-Fusion fork Air fork 120 mm travel Stanchion diameter: 32 mm 6-sided through-axle bolt 15 x 110 mm Boost format Turnkey lockout on the fork
Wheels
29" (M / L / XL), 27.5" (S) Tubeless ready rims, Presta valve 23 mm inner width (28 mm outer) 32 spokes Thru axle / Boost format hub 6-bolt disc Shimano/Sram freehub Sealed bearings
Brakes
Hydraulic disc brakes Tektro TK-M276 Number of pistons: 2 Front disc: 180 mm Rear disc: 160 mm Adjustable reach: Yes
Riding position
Handlebar: Rockrider Sport Material: Aluminum Width: 740 mm (M / L / XL), 700 mm (S) Stem: Rockrider Material: Aluminum Size: 60 mm 4 adjustment increments: +0 mm, +5 mm, +20 mm, +25 mm Compatible with Garmin, Mio, or Bryton bike computer / GPS brackets Grips: Rockrider Ergonomic
Saddle / seat post
Rockrider Ergofit Pro saddle Rockrider Sport seat post Material: Aluminum Diameter: 31.6 mm Length: 400 mm (S / M / L), 450 mm (XL) With tool holder (4 mm and 6 mm Allen keys included) Compatible with dropper posts
Tires
Hutchinson Kraken 29"x2.3" (M / L / XL), 27.5"x2.3" (S) Carcass: 60 TPI Tubeless ready
Pedals
Rockrider 520 Grip resin flat pedals.
Accessories included
Your mountain bike comes with a bell, lighting, wheel reflectors, and pedals.
Origin
Imported
Product testing
Ask your local Decathlon store about testing before purchase.
Storage instructions
After washing, rub with a dry cloth to remove all traces of moisture. Lubricate the drivetrain and store the bike in a cool, dry place away from corrosive products and salty air.
Guarantee
Lifetime (frame, stem, handlebar). Availability of spare parts: 2 years.
Superior quality. Unbeatable prices.
For 40 years, Decathlon has delivered the best value in the retail sports industry by offering high-quality, sustainable and cost-effective products.
Decathlon makes the difference
-
Research and development
delivers high-quality cost-effective products
-
State-of-the-art production processes
minimize manufacturing costs
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Optimized supply chain
reduces retail prices
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Minimal retail footprint
lowers overhead and indirect costs

Explore 540, Touring Mountain Bike, 29"
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Heavy products return policy
If you return a product you will receive a refund for the purchase price plus any applicable sales taxes, less any non-refundable charges.
Decathlon will cover all shipping costs associated with your return except for items excluded from our return policy such as bikes, basketball hoops, snowboards, surfboards, tents, and other larger / heavier items.
Return costs for heavy products:
Weight Thresholds | Shipping within California | Shipping outside of California |
---|---|---|
> 9 lbs | $20.00 | $25.00 |
> 30 lbs | $50.00 | $65.00 |
> 100 lbs | $100.00 | $125.00 |
> 200 lbs | $200.00 | $230.00 |
If you return a product at any of our store locations, we will gladly help you find the best alternative product or refund you on the spot.
