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 RC120 Disc Brake Aluminum Road Bike

Sale price: $499.00 Regular price: $899.00

Make progress with this versatile bike. Its comfort geometry, aluminum frame, carbon fork, and disc brakes will allow you to overcome any type of path

Color: Select a color
Size: Select a size
Size Guide
Sale price: $499.00 Regular price: $899.00

See shipping rate at checkout

Final Sale: No returns or exchanges

See our return rules for heavy items

Free pickup

San Francisco, 735 Market St. Options

Select an available color and size to see options.

About this item:

  • 6061 aluminum frame with semi-integrated headset
  • Ergonomic handlebars for better grip and greater comfort
  • Microshift CS-H081 11-34 cassette
  • Promax DSK-300R disc brakes
  • Lifetime Warranty (frame, stem, handlebars)
Model: 8629872

Product Features

A photo of the Triban RC120 Disc Brake Aluminum Road Bike in use
A photo of the Triban RC120 Disc Brake Aluminum Road Bike in use

Triban RC120 Disc Brake Aluminum Road Bike | Making it easy for riders to make progress. Its versatility and 2 x 8 speeds will allow you to explore any kind of road

Make progress with this versatile bike. Its comfort geometry, aluminum frame, carbon fork, and disc brakes will allow you to overcome any type of path

Cycling comfort

Comfortable geometry, raised position, adjustable stem, carbon fork, alu frame

Brake control

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


Can be fitted with mudguards and a front and/or rear 900 pannier rack

Lifetime warranty

Triban offers a lifetime warranty on the frame, stem, handlebar, and seat post

Questions & Answers

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


How much does it weigh??


24.8 LBS in size M

By Olivier on May 19, 2023 | STAFF


does it come with pedals or do you have to buy your own?


This Bicycle does come with resin pedals

By Thierry on July 21, 2023 | STAFF


What are the crankset characteristics? (E.g. crankset length, gear sizes for inner and outer rings)


The Crank Legnth is 170mm on all sizes. The chainring configuration is a 48th large ring with a 34th small ring.

By Thierry on July 24, 2023 | STAFF


When will it be back in stock? and would this deal still be ther when it is back in stock?


Unfortunatly this is a model we will not carry forward. We may have a similar model RC 100 in stock in your size

By Thierry on Aug 15, 2023 | STAFF


Just want to confirm, when I purchase this bike it actually comes with pedals? I do NOT have to purchase bike pedals separately?


Correct - pedals are included in with our bikes.

By Thierry on Sep 5, 2023 | STAFF


Is the small size ever being restocked?


Unfortunately, not in the near future, But the RC100 is available.

By Thierry on Sep 11, 2023 | STAFF


Could I add gravel tiers to this bike? Do you sell them?


This bike is not desgined to offer the clearnace required for gravel tires

By Thierry on Sep 18, 2023 | STAFF


Would I be able to swap the tires on this for some more aggressive tires if I wanted to do some gravel riding?


You can put some wider more agressive tires on this bike, if you have the clearance so it would depend the width of the gravel tire. up to 30mm you should be fine

By Thierry on Sep 26, 2023 | STAFF


Several answers refer to this bike(RC120) being discontinued; will there be a new model to replace it?


Not in the short term. We may explore again for US import begining in 2025

By Thierry on Oct 9, 2023 | STAFF


Hi, I am right between sizes M and L for the Triban RC120 road bike. I am 5'11" and shorter legs with approximately a 31-32" inseam. What is the standover height for both the M and L frame for the RC120? Thank you


You should opt for the large, though you may not have as much stand over clearance. I am 5'7" with a 30" inseam, and fit the medium perfectly.

By Thierry on Oct 30, 2023 | STAFF


I’m 5’11” with a 32” inseam. I’m fairly proportional in regards to torse, legs, arms, etc. The size guide says I’m right between a M and L. What do you recommend?


Based on your height and inseam, I would definely recomend a large

By Thierry on Nov 24, 2023 | STAFF


I am 6 ft and the guidelines on this website say I should buy an L. However, other Decathlon websites of European countries (France, Italy, Germany) have a slightly different scale and I would be between M and L. What would be your advice? Thanks


Would Suggest a Large - at 5'8'' I am a medium to offer prespective.

By Thierry on Jan 9, 2024 | STAFF


Would you recommend using this bike for a half Ironman?


You certainly could use this bike for 1/2 Ironman, I would add a set of Aero bars and you would be set.

By Thierry on Feb 8, 2024 | STAFF


I was wondering if there is more size M coming out?


Unfortunately not - we will not be replenishing this model.

By Thierry on Feb 27, 2024 | STAFF


Is there a way to purchase a new front wheel? I was in a car accident and only my front wheel was damaged.


For sure, the wheel is a stanard size and should be available at your local bike shop. The components are 100% standard and should be easy to find. If you want to re-use exisiting parts, you can ask your local bike shop to rebuild the wheel on a similar rim reusing your hub, and rotor if they were not damaged in the accident.

By Thierry on Mar 11, 2024 | STAFF


How much assembly will I need to do when I buy this bike and will I need special tools?


This bike will arrive 95% assembled. You will need to put on the handle bars, install the seat post & pedals and complete the tire inflation. All the tools you will need with the exception of an air pump are included. - Attached is the assembly video of a similar bike to give you perspective:

By Thierry on Mar 21, 2024 | STAFF


What is the max tire width I could install on this bike without having to change the wheel frames?


The largest tire size you can put on this bike is a 700 x 32mm.

By Thierry on Mar 25, 2024 | STAFF

Product Customer Reviews

Skip to reviews
1147 Reviews
Write a Review 
Triban RC120 Disc Brake Aluminum Road Bike, unspecified Image 7 of 6
Filtered by reviews Loading reviews…
A bike goes everywhere.…

A bike goes everywhere. The derailleurs are not very precise, the mechanical disc brakes and semi-mineral pads lack a bit of bite, but a very good touring bike/work bike overall.

icon-circle-checkmark verified purchase
Top racing bike for eating up the miles! Lots of fun

It looks very classy and can also compete in more expensive categories. Ideal for beginners. The weight is also right. You should first look at yourself and see if you can lose a kilo or two. But that's what the bike is for. You'll notice 5kg less body weight more than 1kg less on a racing bike.

icon-circle-checkmark verified purchase
It's better to pay extra for a better one

The bike is so-so. The price is OK. I think it's better to pay extra and buy something better. The brakes are very bad and after just 2 weeks it got very scratched.

icon-circle-checkmark verified purchase
Very average

Bike received at home and upon unpacking it's already a disappointment. The handlebar tape is damaged, and there are strange marks on the gray frame (black and red marks very difficult to remove) No speed passing and friction of the front disc. The next day I take the bike to the Decathlon store near my house to make adjustments and resolve any problems. Return and road tests. My chain is rubbing on the front derailleur fork on the big chainring. There is always a friction on the front wheel probably the disc which must be warped... Concretely, barely received and I simply want to return the bike. Also very disappointed with the adjustments made in store because in the end, almost nothing was adjusted.

icon-circle-checkmark verified purchase
Very good bike for…

Very good bike for starting road cycling, the materials are sturdy and for the moment are reliable. Used regularly 1 to 2 times a week for almost a year and no problems.

icon-circle-checkmark verified purchase
Great bike

I have an RC120 size S with 1 chainring discs. I am not a big sportswoman but this model fully meets my expectations. It is ultra light, perfectly suited to outings and easily pushes me towards 30 km per day. Everything is perfect, the brakes and the chainrings. Convertible into Gravel for travel! (I recommend getting disc brakes) I highly recommend this product with its unbeatable value for money!

icon-circle-checkmark verified purchase
Triban Rc120

A good bike at this price, I recommend it to beginner road cyclists

icon-circle-checkmark verified purchase
After years of…

After years of VTC for daily travel, wanted to try something else by purchasing this Triban. No regrets.

icon-circle-checkmark verified purchase
Serious cyclists, avoid this bike

The bike has been used for almost two years. After the initial excitement with this "best buy" product, the impressions are rather weak. The seat is uncomfortable, so if you plan to do longer routes, my recommendation is to get another one. Immediately throw the pedals you get with it in the trash where they belong and get others. To avoid unpleasant squealing of the brakes and shaking of the entire steering wheel, immediately change the bad tires and put on some organic ones, plus straighten the discs (mine had a stroke of over 3mm). My height is 168 cm, so, according to all recommendations and tables, I bought size S, but I have the impression that this size is too small for me because, in order to achieve the ideal height, I pulled out the sic bar all the way and the too short 80 mm bars on the handlebars, so my knees they do not have enough space for pedaling - recommendation: if you have the opportunity, be sure to try the bike before buying. Wheels are a disaster, to put it mildly, because it's only a matter of time before you have to change the tire, and then it's a headache because you'll struggle with it to the point of frustration and the question "why did I buy this cheap product". Even worse is the realization that there are physically no better wheels for that bike that you can put on them, and that's the whole point of being dissatisfied with this product.

icon-circle-checkmark verified purchase
Great for the price

Bought for road cycling, super cool but a small downside from the point of view of the transmission which is not super precise and goes out of adjustment quite quickly, despite having re-adjusted correctly several times. Otherwise the bike is great!

icon-circle-checkmark verified purchase

Excellent value for price.

icon-circle-checkmark verified purchase
Good for beginners

I give my opinion after more than 3000 km. From the first rides, you feel the lack of gears with only 8 speeds at the rear. The weight and high aerodynamic resistance are also weak points. It's a good bike for beginners or for home/work. Currently, I only use it on a simulator at home or as a loaner bike for group rides.

icon-circle-checkmark verified purchase

I've had this bike for almost two years, I drove from Moravia to Bratislava to get it, it wasn't available anywhere in the Czech Republic for a long time - and I don't regret it. On the contrary, for the money, an excellent bike, unbeatable price/performance ratio. I ride mainly on paved roads and cycle paths, but it can easily handle dirt roads, gravel and gravel. Microshift shifting is reliable and precise. It also handles a child seat attached to the frame without any problems. (Frame size M)

icon-circle-checkmark verified purchase
Pedalboard problem

Huge disappointment. Nothing is wrong with the pedal board which has barely come out of the box and is already slightly warped! Impossible to correctly adjust the front derailleur, the chain rubs on it, 4 visits in 4 days to the Decathlon workshops and even they cannot adjust it, it goes out of adjustment again after a few km. Ditto the front brake which already whistles when braking after barely 60km. The wheels and the frame are of good quality, but it would be better to mount it with a Shimano Sora, even if it means increasing the price of the bike by €30. So I made an exchange with another Triban bike in Shimano Sora this time. Thanks to the super friendly and responsive after-sales service.

icon-circle-checkmark verified purchase
Very happy with this bike.

Purchase since May 2022, I first learned lots of things about road bikes in writing or on video before making this purchase, which many do not do and then bite their fingers. The Pluses: bike with good pedaling, 28 tires are good because that's what you need with sometimes not great roads, so far no punctures, the brakes are good. The minuses: pads which brake well but which whistle at the front, better materials are needed in the pad linings or buy pads with better quality lining especially for the whistling, rear derailleur which goes out of adjustment a little quickly and what rarely happens in all bike brands, changing the saddle because the original one was not really suited to my body shape. Conclusion: I am happy with this bike (minimum rides of 20 km, maximum rides of 100 km for the moment), and work bike from time to time. I recommend this bike for those who are like me, who adjust their own derailleurs, who do their own maintenance. For others to find out more, to see if derailleurs, like Shimano for example, go wrong less often.

icon-circle-checkmark verified purchase
Skip to reviews

Size Guide

Size Guide Visual

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 ft0 InchL 6 ft0 Inch-6 ft3 InchXL 6 ft3 Inch-6 ft7 Inch


Comfort-oriented frame geometry with a higher steering socket and a shorter top tube that offers a more upright position than a classic road frame.6061 T6 aluminum sloping frame with semi-integrated headset. Frame weight, size M: 4 lbs


Carbon fork that is more lightweight and offers more precise directional control.Aheadset 1-1/8Inch steerer tube makes the steering assembly strong and rigid.Inserts in the fork to fit a pannier rack. Maximum load on the fork: 19.8 lbs

Handlebar / stem / steering

Ergonomic handlebars for better grip and greater comfort.Handlebar width (axle-to-axle):XS, S, M: 400 mm.L, XL: 420 mm.Triban forged stem:XS: 70 mmS: 80 mm M: 90 mmL : 100 mmXL: 110 mm


High-precision, sturdy Microshift 8-speed shifter inner routine.Very comfortable design: the shifter is easy to operate regardless of hand size. Front Microshift derailleur and high-precision Microshift rear derailleur

Crankset / cassette

Microshift CS-H081 11-34 cassette(11/13/15/18/21/24/28/34)Aluminum Triban crankset double chainring 50/34.170 mm crank arm length


Promax DSK-300R disc brakes.160 mm disc brakes at front and rearJAGWIRE anti-compression housing to ensure braking precision and efficiencySemi-metal pad


Triban Tubeless ready* wheels6061T6 aluminumETRTO dimensions: 622 x 17 C28 mm high for greater lateral rigidityCrossed stainless thread lock spokes to improve rigidity (28 front and 28 rear)*Conversion kit required, including 2 tubeless valves + 2 rim strips + bottle of anti-puncture liquid


Triban protect: 700 x 28 Skin Wall puncture protection

Product testing

We recommend that you also wear cycling shorts with a protective pad for added comfort.

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: the frame, stem, handlebar, and seat post.




Size Guide Visual

Please Sign In to Post Your Question

In order to notify you about the answer it is required to Sign In.

Sign In