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Triban GRVL 120 Gravel Bike

Sale price: $699.00 Regular price: $999.00

We have designed this gravel bike to make it easy to discover gravel riding. Easy and versatile: single chainring 38-11/40, mechanical disc brakes, XL flared handlebar, tubeless wheels and 38 tires.

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Sale price: $699.00 Regular price: $999.00

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San Francisco, 735 Market St. Options

Select an available color and size to see options.

About this item:

  • 6061 T6 aluminum frame with semi-integrated headset
  • Comfort-oriented frame geometry with a higher steering socket that offers a more upright position than a classic road frame
  • Microshift H100 10-speed 11-42 cassette
  • Promax DSK disc brakes
  • Lifetime Warranty (frame, stem, handlebars)
Model: 8629957

Product Videos

Product Features

A photo of the Triban GRVL 120 Gravel Bike in use
A photo of the Triban GRVL 120 Gravel Bike in use

Triban GRVL 120 Gravel Bike | discovering gravel biking. Easy, versatile: single chainring 38-11/40, XL flared handlebar, 23c tubeless wheels and 38 tires

We have designed this gravel bike to make it easy to discover gravel riding. Easy and versatile: single chainring 38-11/40, mechanical disc brakes, XL flared handlebar, tubeless wheels and 38 tires.

Cycling comfort

Comfortable geometry, raised position, carbon fork, alu frame

Brake control

Mechanical disc brakes: effective and progressive, even in damp conditions


Can take a mudguard and pannier rack in the front and/or in the back

Questions & Answers

Look for product information, frequently asked questions, opinions...


I want to swap the front chainring on my Tirban GRVL120. What is the direct mount standard used there? I need to order online, but can't find any info on which chainring I need to get.


Its a single chainring Microship 38tooth ring H100 10 speed system currently. All Microshift cranks use a 24mm spline, so you can replace the crank set with another system with 24mm or change the bottom bracket and use any crank you like.

By Thierry on Feb 26, 2024 | STAFF


What is the total weight of the Triban GRVL 120 in size medium?


Depends on the size but 23lbs in a medium.

By Thierry on Apr 30, 2024 | STAFF


Does this bike come as assembled or I have to assemble the parts for this bike?


This bikes comes 90% assembled, and comes with all the tools you will need. Handle bars, front wheel and pedals will need to be installed.

By Thierry on Apr 30, 2024 | STAFF


What is the maximum rider weight for this bike?


Maximum Rider and gear weight is 240lbs for this bike

By Thierry on May 1, 2024 | STAFF

Product Customer Reviews

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22 Reviews
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Triban 120

Excellent product

Good experience

I bought this bike, it came from a road bike, it is a very comfortable bike to ride on both asphalt and cobbled roads, I have ridden it with other road bikes and it responds, but on the flat it would be nice if it came with a 40 or 42 teeth, and the brakes more than all the front ones, it seems that the disc did not do its job 100%, but it responds to stop properly, but it seems a little rough, I am very satisfied with the purchase, I am a person of 191, and the size XL, it fits me perfectly.

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This bike is perfect for those who want a good starting point into road biking, while having the versatility to go off road whenever they want. The 38mm tyres on this really give you the confidence when you go over cracks, bumps and debris on the road, knowing that you won't crash easily or have a flat. No issues with this bike since i bought it, and have clocked in about 1000km of mileage already after 8 months. Extremely worth it for the price!

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Awesome bike. Used it on different road - smooth and rough. I was quite surprised with its performance! I used it on the road and a bit of rougher road (trail with a bit of dirt and rough). I just need to adjust some things to my liking but other than that, it is a good bike :)

Brakes feel cheap Overall decent

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I was having a hard time looking for a gravel bike for a tall person and this XL was as large as some XXL bikes from different brands. I tested several others, but this one to me stood out as the best value overall, and definitely one of the best to ride regardless of the price. Don't get me wrong, it's not the same as a brand name bike that costs 3 times more, but to me it is as good if not better than bikes costing 50-100% more. The tires keep pressure well (and I'm a big guy), the bike is so balanced that for the first time ever I learned to ride without holding the handlebars, naturally, and the bike is so fast through the dirt, as if it's gliding on air. i found the seat to be very comfortable, the micro shifters shift very well and positively, and the overall frame geometry is just right. My only negative is the braking is not very strong, but it's adequate and on par with the market in this price range. The only way it gets better is with hydraulic brakes ($$). The bike is also very light. I can't comment on long term longevity but the first impressions are highly positive.

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Great value for money.

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Great bike on paper, but the price point really reflects the quality of certain components used. The bike rides and feels great, but passed the 500km mark, you will likely need to replace the wheels, tires, spokes and brake calipers. I rode this bike for a few months, mostly on pavement, as a commuter. As much as I enjoyed riding the bike, I've had multiple flat tires, broken spokes and brake failures, which could all be attributed to cheap components and fabrication defects. Aftersales service were also less than helpful, and pretty much accused me of sabotaging the bike to get replacement parts. I will have ended up putting another 700-800$ in replacement parts and labor on the bike just to make is useable again for next season, without mentioning the time sink this represents. It's still cheaper than buying a new bike, but I regret going with this one in the first place, especially considering the 1k$ price tag. You're better off spending the 500-1000$ right from the start to get a brand name and more reliable bike and save the headache. I do not recommend this bike, and I will not be buying sports equipment from Decathlon again.

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Good purchase

I am a newbie to cycling. The truth is, it is a very good purchase, although the seat is somewhat uncomfortable, but I think it is a matter of getting used to it.

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Gravel bike

I love this very versatile bike, nothing negative to say.

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Great bike !

Bought this bike to get into gravel in 2022. My first major race was Vermont Overland, 98km and over 2300m of elevation gain with class IV sections ... it handled everything to perfection Since then i've changed the crankset in order to get a crank power meter and that's it. I race for results and i have placed top 50 in several gravel races with possibly the cheapest bike It could be lighter, brakes could be better ... but you can start with this and changed parts as you go. For the price it is unbeatable. Also it is quite fast on the road with those 38mm tires. Great job Decathlon!

Excellent gravel bike

It is an ideal gravel bike and unbeatable for its price, very comfortable, light, agile, fast, and rough roads feel much more enjoyable than with many other bikes. The shifting mechanism is very fluid, and the brakes are powerful and responsive. It is the best new bike I have ever purchased.

Definitely worth the money for this bicycle! If you're looking to go fast, but prefer pavement and PCN to roads, yet wants to experience drop bar instead of flat bar, this is definitely a great entry level bike to attempt.

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gear shifter gets stuck between gears

the brakes not as firm as i’d thought but the biggest problem is the gear shifting on the low gears. seems like the chain gets stuck between gears and the chain noise is there

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Very fast delivery of the product. Excellent product for an entry level gravel bike. The bike handles well and very fast. The mechanical disc break needs getting used to if and you may need to balance out front and rear breaking accordingly. The seats are not the most comfortable but does its job. I'm 180 cm and the L size bike suits me just fine. I'm looking forward to riding more in the next couple of days so I can provide a more thorough review. So far, I love it!
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Additional Product Information


Frame (for bike): 100.0% Aluminium

Choosing the right size bike

You should choose the size of your bike based on your height, as well as your build (arm span and leg length).If you are between sizes, the smaller size will give you a more athletic position, while the larger size will give you a more comfortable position.XS 5 ft1 Inch 5 ft5 InchS 5 ft5 Inch 5 ft8 InchM 5 ft8 Inch 6 ftL 6 ft 6 ft3 InchXL 6 ft3 Inch 6 ft7 InchYou can try out a Triban 120 disc in the store, since the frame geometry is identical.


Comfort-oriented frame geometry with a higher steering socket that offers a more upright position than a classic road frame. The elongated top tube and shortened stem allow this gravel geometry to move the fork forward for better compatibility between your feet and the front wheel.6061 T6 sloping aluminum frame with semi-integrated headset.Frame weight, size M: 4 lbs


Carbon fork and aluminum pivot that are more lightweight and offer more precise directional control.Aheadset 1Inch1/8 head tube that provides great strength and rigidity to the steering assembly. Inserts in the fork to fit a pannier rack. Maximum load on the fork: 20 lbsFork weight: 1.7 lbs

Handlebar / stem / steering

Triban aluminum gravel handlebars with a 16° flare for better grip and excellent comfort.Handlebar width (axle-to-axle): XS/S/M: 420 mm.L / XL: 440 mm.Stem:XS: 60 mmS: 70 mmM: 80 mm.L: 90 mm.XL: 100 mm


Single chainring 38-11/40Precise, very sturdy MICROSHIFT XLE 10-speed shifter. Very comfortable ergonomics: The shifter is comfortable regardless of hand size. Microshift M665 rear derailleurs with InchClutch Inch system to hold the derailleur and prevent the chain from jumping. It can be disengaged to easily remove the wheel.


Lifetime warranty on: the frame, stem, handlebar, and rigid fork.



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