Product Colors and Sizes

  • Black Friday product
  • New Deal product
  • Cyber Monday product
  • Clearance product
  • Deal product
  • Best Seller product
  • Ecodesign product
  • New product
  • Staff Pick product
  • In The News product
  • Innovation product
  • product

Triban GRVL120, Disc Microshift Gravel Bike

Sale price: $899.00 Regular price:

We designed this GRVL120 for discovering gravel riding. It's simple and versatile, with a single chainring, mechanical disc brakes, and tubeless-compatible wheels and tires.

Color: Select a color
Size: Select a size
Size Guide
Sale price: $899.00 Regular price:

See shipping rate at checkout

See our return rules for heavy items

Free pickup

San Francisco, 735 Market St. Options

Select an available color and size to see options.

Model: 8575940

Product Videos

Product Features

A photo of the Triban GRVL120, Disc Microshift Gravel Bike in use

Triban GRVL120, Disc Microshift Gravel Bike | Designed for discovering gravel riding, the GRVL120 is simple and versatile. Has a single chainring, hollow handlebar, tubeless-compatible wheels and tires.

We designed this GRVL120 for discovering gravel riding. It's simple and versatile, with a single chainring, mechanical disc brakes, and tubeless-compatible wheels and 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.

Lifetime warranty

Triban guarantees the frame, stem, and handlebars for life.

Product Lifestyle Image Gallery

Image Gallery

Triban GRVL120, Disc Microshift Gravel Bike,dusty green - glossy finish 

Triban GRVL120, Disc Microshift Gravel Bike,dusty green - glossy finish 

Triban GRVL120, Disc Microshift Gravel Bike,dusty green - glossy finish 

Triban GRVL120, Disc Microshift Gravel Bike,dusty green - glossy finish 

Triban GRVL120, Disc Microshift Gravel Bike,dusty green - glossy finish 

Triban GRVL120, Disc Microshift Gravel Bike,dusty green - glossy finish 

Triban GRVL120, Disc Microshift Gravel Bike,dusty green - glossy finish 

Triban GRVL120, Disc Microshift Gravel Bike,dusty green - glossy finish 

Triban GRVL120, Disc Microshift Gravel Bike,dusty green - glossy finish

Product Customer Reviews

Skip to reviews
609 Reviews
Write a Review 

Triban GRVL120, Disc Microshift Gravel Bike
Filtered by reviews Loading reviews…
My First Gravel Bike

After a 40+ year hiatus, I started riding a bike again about 5 years ago. I purchased a used road bike and found a lot of joy. Along the way, I've become interested in expanding into other surfaces, hence the purchase of my first new bicycle since I was 11. The bike arrived in good condition, albeit with a very minor scratch that obviously occurred during shipping. Assembly was quick , and very straightforward, in large part due to the set of videos that had been previously emailed. I'm still in the process of adjusting to the bike. It's a good ride, though different than a road bike. I like it and am looking forward to getting to use it on trails. I appreciated the included bell, reflectors, and lights! However, for the life of me, I can't figure how to attach the headlight. the taillight was pretty straightforward, but the headlight... (help?)

Amazing Value for Money

Since buying this in October I've ridden 600km and initially bought this to try gravel riding and now use it as my winter training bike as well by taking the tires off my summer bike. Having got into more serious gravel rides I've upgraded the wheels and tires but for most riders the stock wheels will be fine. I will upgrade the brakes next to improve brake feel. Very happy with the frame and drive train so far.

Excellent all around bike and customer service

I was looking to start cycling after recovering from an ankle fracture and I wasn’t sure what I should go for but luckily, I have met an amazing staff Marco in the Livingston store who took his time to guide me. He even got me to try one of the road bikes. I took his advice and went home to do more research. I came back to the shop and luckily, he was on duty and I bought the GRAVEL BIKE TRIBAN RC 120. This is an excellent bike and I’ve already done over 100 miles on it. I took the bike for free servicing at the end of the 3 months. Arthur did a very good job on the bike as the breaks were making noise. He also help me to adjust the sit to my hight and I purchased a lubrication for maintaining the bike. He took his time and advise me on how to maintain the bike. To be honest this has been the best experience I have had in a bike shop and all the shop assistant I have talked to in Livingston are great and very friendly.

icon-circle-checkmark verified purchase
Great Bike

Loving this bike. Good for the commute, weekend ride and bikepacking. Great dip into only having 1x on my bike. Could do with more mounting bosses and better mechanical disk brakes. But these are minor points.

icon-circle-checkmark verified purchase
Superb bike but I’d recommend fitting better tyres

Overall, the bike is absolutely fantastic for the price. I don’t think it can be beaten for that money. I have loved riding it for months, but I had to change the tyres. I had 4 punctures across 3 rides. They are supposed to be new & improved tyres, but not only is the grip not that great for gravel riding, they are just not up to scratch. I spent £35 on some Specialized tyres and haven’t had a puncture since. This bike would easily get 5 stars, but it is let down by this one issue. Factor into the cost that you might want to buy different tyres, and this is the bike to get you into gravel riding without breaking the bank.

Decent bike

Decent bike , but in a few weeks just I’ve had more punctures than I’ve had in 5 years cycling the same route , tyres are terrible

icon-circle-checkmark verified purchase
for the price it's awesome.

love it. just have a toe overlapping issue. Its an awesome bike to ride.

icon-circle-checkmark verified purchase

I normally ride expensive road bikes... Decided i wanted a gravel bike read reviews on this ..yes it wasn't top of the range components but hey I decided to give it a try ...Well I was impressed ... after the first 15 miles it was infact a great fun bike ..I was soon hitting 20mph on the gravel flats ...Wasn't expecting a lot from a bike that cost £600.. Honestly I was impressed considering I pay 10 times that amount on my bikes ... I am not saying it will out perform any of my road bikes ...but in my honest opinion this is great for the money

icon-circle-checkmark verified purchase
Best Bike I've ever had (after a few tweaks)

So first off lets get the negatives out the way as there isn't many. The tyres that come with it are awful, even after they switched them to new ones when people complained. The positioning of the brake lever cable on the right hand side gets in the way when mounting things on the handle bars. Though I have managed around this by mounting things that are shorter. Now for the positives, first time having flared handle bars and a one-by system and I absolutely love using them. There is minimal maintenance with the drive train and cleaning it is much easier. The gear ratios are perfect for what I need, You do however notice the biking topping out in speed when going down steep descent, where usually I could push a few more MPH out on my road bike. But the trade off for max speed is definitely hassle free maintenance and comfortable ride. I have put in a over 1000 miles on this done 3 Bike packing trips and did my fastest time on the C2C (raining ALL day). The bike hardly has scratch on it and has so far only needed the occasional clean and lubing of the chain Would Thoroughly recommend this product!

icon-circle-checkmark verified purchase
Very pleased after 12 months use.

I reviewed this bike in detail a few weeks after purchase, gave it 5 stars. Now, after riding weekly on country lanes for 12 months, I am just as pleased with it. The improved Overide Hardskin tyres are still a little fragile, had to fit nylon liners to stop punctures, but are much better than the original soft ones. The rear derailleur is not tolerant of knocks, so do not allow the bike to fall as it will need adjustment. Everything have been working well, the brakes have run-in so offer much stronger stopping power. Comfortable, good looking and good value gravel bike - what not to like?

icon-circle-checkmark verified purchase
Excellent value Gravel Bike

I was lucky enough to find one of these bikes in stock in my size recently. The green coloured frame and gum wall tyres have really grown on me since collecting it, shifting as with other decathlon bikes I have tried, is impressively smooth and responsive. Having been out on it only a handful of times, I am enjoying the comfortable riding position along with the quiet hum of the tyres on the tarmac. Although the weight of the bike won't win any competitions and brakes need adjusting early on to get them functioning well, the solid well built frame, flared dropped bars and tyre sizing have all contributed to this 50 year old cyclist having a new found confidence on uneven tarmac, grass and gravel. Grab one of these excellent value Gravel/Go anywhere/adventure Bike. Highly recommended.

Great value gravel

If you're looking at expensive alternatives you need to go and try this bike. It's great value, comfortable, shifts nicely, and does everything most people need from a gravel bike.

icon-circle-checkmark verified purchase
bad idea

a removable derailleur hanger (not fixed to frame) much more appreciated than a carbon fork

Great for the money

Had this bike for a month now and I have to say, for the money I am really pleased. The colour is great and looks better in person than online. No issues with the tyres yet (Hutchinson Override Tubeless tyres) despite travelling across numerous different surfaces and mainly off road. I elected to change the original tubes and replaced with some cheap ones that have a removable core and put some sealant in the tube itself. The store itself didn't sell the tubeless valves in order to convert to purely tubeless but this has worked ok for me so far! If the cheap tubes fail I will consider going full tubeless then. The gearing as some have already mentioned is a good range for everything I would need but if you want to go much much faster downhill then I would suggest that you look elsewhere or look to spend on some upgrades. The brakes are soft but do work. I think they are still bedding in so the jury is out at the moment. I'm 180cm and average build so it was L size for me. I have to admit I found the 100mm stem was a bit too long in the reach for me personally so swapped for a shortened stem (60mm) for some more comfort but no problems with mechanics to date. Also swapped out the plastic pedals to my clipless brand and I will say that my biggest concern at the moment is the clearance between my shoes and the front tyre. I have noticed that even with the shoes adjusted to the furthest rear position the tyre rubs the tip of the shoes sometimes when steering more often offroad!! In the bikes defence I do have EU 47 sized feet but can't remember having the same problem on other similar bikes? Also, I have never used Microshift components before but I have to say I'm really impressed how well the system works with the clutch mechanism and single front chainring. You get what you pay for and overall this is a good bike for it's price. Finding one in stock in the UK is a bit like finding a large of Unicorn excrement... But if like me you do find one, I did feel the need to remove the chain guard attached to the front chainring as it looked ridiculous, was a cheap plastic and more suitable for a kids bike!!!

build-in rear hanger on aluminium frame for £599

I have road version of this bike. Ok, for asphalt only using build-in rear derailleur hanger on aluminium frame is.... well it is +/- appropriate. But on a all-road bike for £599? Geez, it is a mess up guys

Skip to reviews

Size Guide

Size Guide Visual

Additional Product Information


Bike frame

  • 100% Aluminum

Choosing the right size men's gravel 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 5'1" 5'5" S 5'5" 5'8" M 5'8" 6' L 6' 6'3" XL 6'3" 6'7" You 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 GRVL geometry of the elongated top tube and shorter stem allow the fork to be moved forwards to avoid the foot rubbing against the front wheel. 6061 T6 aluminum sloping 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 1"1/8 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 lbs Fork weight: 1.7 lbs


Promax DSK disc brakes. DSK 330R "flatmount" front brake DSK 300R "postmount" rear brake 160mm front and rear discs Anti-compression Jagwire KEB-SL housings to ensure precise and effective braking. They are reinforced with Kevlar and have a specially designed inner liner so the cables have an excellent slide Semi-metal pads, after-sales service reference: 8562868

Handlebar / stem / steering

Triban aluminum gravel handlebars with a 16° flare for better grip and excellent comfort. Handlebar width end to end: XS / S: 420 mm. M / L: 440 mm. XL: 460 mm. Stem: XS / S: 70 mm. M: 90 mm. L: 100 mm. XL: 110 mm


Single chainring 38-11/42 Precise, very sturdy Microshift XLE 10-speed shifter. Very comfortable ergonomy: shifter with a pleasant feel, whatever the shape or size of the hand. Microshift M665 rear derailleurs with "Clutch" system to hold the derailleur and prevent the chain from jumping. It can be disengaged to easily remove the wheel.

Crankset / cassette

Microshift H100 10-speed 11-42 cassette (11/13/15/18/21/24/28/32/36/42) Triban 38 bottom bracket Aluminum 6061 crank and steel chainwheel guard Cranks: 170 mm for all bike sizes To prevent the chain from jumping, we combined the rear derailleur with a clutch system, an anti-chain jam on the seat tube, and an external flange on the chainwheel guard.

Saddle / seat post

Triban ErgoFit saddle. Hammock design for greater comfort. Aluminum Triban seat post with 27.2 mm diameter for greater comfort through greater flex. Easy saddle adjustment Diameter: 27.2 mm. Length: 250 mm in XS, 300 mm in S, 350 mm in M / L / XL


Triban Tubeless ready* wheels 6063 T6 aluminum ETRTO Dimension: 622 x 23C Rims with eyelet spoke inserts for more durability Crossed steel spokes for improved rigidity (28 front and 28 rear) Sealed bearings Weight per pair (without cassette and QR): 5.1 lbs TESA TLR rim strip *To convert to Tubeless, add 2 tubeless valves ref:8551979 + tubeless anti-puncture liquid / sealant ref:836339

New tires starting 6 november 2020

Hutchinson Overide 700x38 Tubeless Ready tires 14.1 oz per tire Flex bead / Bi-compound rubber Hardskin anti-puncture reinforcement Dimensions: 622-38 / 700x38 127 TPI Carcass Min. pressure: 3 bar / 43 psi Max pressure: 5.5 bar / 80 PSI


Hybrid platform pedals.

Accessories / equipment

Bike supplied with a front and rear light and a bell


24 lbs in size M, without pedals

Why choose a gravel bike rather than a road bike with fat tires?

A gravel bike is not just a road bike with fat tires. Even if it shares DNA with a road bike, gravel bikes have their own unique characteristics. On our GRVL v2lo 120 gravel bike, we have changed the frame of our RC120 disc by adjusting clearance (tire space) for riding with a 700x38 tire. It also has mechanical disc brakes. On this gravel bike, we also used our tubeless gravel wheels in 23c, and a single chainring drive train.



Product testing

In order to assess this gravel bike, we performed numerous tests in the lab and on roads and trails LAB TESTS for ISO 4210 Standard: LATERAL RIGIDITY, FORK FRONT SHOCK ABSORPTION, COMFORT (GEOMETRY) FIELD TESTS: LONG RIDES, GRAVEL TOURING, many rides on all types of terrain (roads, gravel, trails, country roads, woodland, mud, rocky ground, etc.)

Storage instructions

Store the bike in a cool, dry place away from sunlight. For use or storage in salty environments, wash and dry after each use.


Lifetime warranty on: frame, stem, and handlebar.

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