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Triban RC520, Shimano 105 Disc Brake Aluminum Road Bike

Sale price: $1,199.00 Regular price:

Cycle further and more often with the most comfortable road bike we've ever designed. Discover its hydro-mechanical disc brakes, specially-designed geometry, and the Shimano 105 groupset

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Sale price: $1,199.00 Regular price:

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Model: 8629909

Product Features

A photo of the Triban RC520, Shimano 105 Disc Brake Aluminum Road Bike in use

Triban RC520, Shimano 105 Disc Brake Aluminum Road Bike | We've designed and tested this road bike for your regular rides. It provides matchless comfort for cycling further and more often.

Cycle further and more often with the most comfortable road bike we've ever designed. Discover its hydro-mechanical disc brakes, specially-designed geometry, and the Shimano 105 groupset

Cycling comfort

Comfort road geometry, 28 mm tires, foam handlebar tape, new ErgoFit saddle


Inserts for carrier and mudguard, suitable for 36mm tires, tubeless ready wheels


The Shimano 105 R7000 groupset, front and rear derailleur, brake levers.

Lifetime warranty

Triban guarantees the frame, stem, and handlebars for life

Product Customer Reviews

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121 Reviews
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Triban RC520, Shimano 105 Disc Brake Aluminum Road Bike
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Quality and value

Aimed as a winter bike/leisure bike the first impressions are most positive. It offers a comfortable ride, and is responsive. Although being 1.94m the bike is maxed out position wise - with an inverted 13cm stem. The bike is great value and will be well used. Also, the service and advice given at the Stockport store was outstanding

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Great bike

First road bike and rides like a sream

After 4,200km

Pros: * Was good value to get into road biking as I paid only £730 back in April 2019. Cons: * Only 105 levers and derailleurs. Therefore not a complete 105 groupset. * Tires that came with bike were not that grippy compared to Continental Gatorskins. * Rear wheel is not centred enough in the rear stays and points to the right. Therefore poor tolerance and quality control, which means more power is required to maintain or reach a certain speed. Speed wobbles also occur at speeds greater than 30kph because of this poor tolerance. * Exposed inner cables leading to grit getting in and a gritty rear brake lever feel. Overall, I think this is a good value bike to get into the road bike category. However, the headset bearings in my bike are worn out and it does not look like they can be replaced. This is a shame as the bike was a nice ride, but as the steerer tube is now moving around inside the headtube, it's a bit dangerous for any serious rides. It's not because I haven't preloaded everything before tightening the stem on the steerer. Also, the non-centred rear wheel is just poor quality control.

RC520 Indoor Trainer

i bought this to work alongside a Wahoo Kickr & Zwift/Sufferfest, bolted straight on the trainer with no issues, literally up & running in minutes. very happy with it. recommended

A superb bike let down by the wheels

This is a fantastic bike, it does everyting I want. day rides, commuting even a couple of triathlons. Comfort is amazing, I just love riding it! However it is totally let down by the wheels. It is impossible to change tyres on it. If you are buying budget for a set of replacement wheels. Decathlon this is such a shame....

Amazing bike

After a long comparison of bikes from various brands I went for Decathlon because of the value for money. It was difficult to get my hands on this one as they are constantly out of stock, but I was lucky! I am a 5'8'' medium build female and couldn't find the women's model, however the frame is the same as are the key components, the seat is fine and the only issue is the reach on the handlebars which is a little too large but nothing unmanageable. I have been using it for 12+ weeks now on my daily 20km commute and am very happy with my choice, this bike is a smooth ride, the carbon fork dampens the vibrations from the road really well and the shifting is seamless. As others have mentioned before the wheels are quite heavy so won't be the best suited for those wanting to race. However this feels like a nicely versatile bike to commute and do some light touring.

RC520 Disc Road Bike

Pretty good for the price, mostly 105 which gives nice gear changes. 32 sprocket on cassette which helps a bit with the hills, weight is a fairly hefty 10.7 kg though. Have read that the tyres are very difficult to remove in the event of a puncture but have not had a puncture yet - tempting fate there. Would buy again.

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Great value especially given the price of bikes at the moment. Arrived very quickly ( a few days ) with everything in order . Solid bike . Done a few hundred miles and really enjoying it .

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Road bike rc520

A really good bike and spec for the money,and the vibes I get from people looking at it are very good.

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I’ve owned my RC520 for a few years now, originally buying it as a winter road bike. I’m not the fittest cyclist so I did notice the weight going up hills and the lack of response. My other road bike is all carbon so this was to be expected. Just before lockdown I decided to try it as a lightweight tourer. I put about 15kg of racks and kit on it and cycled over to Denmark and back, 1250miles. The bike was superb, mechanically sound and it’s road bike looks and handling turned a few heads in the Netherlands. I’ve since put 34mm tyres on and looking forward to my next tour. Great purchase.


Very happy with this bike ... Have been using it to do about 32km commuting a day. Tyres have handled snow, rain and dry roads. Brakes have been excellent in all conditions. Previously I had ridden on hybrid bikes so for me this had a very racing set up between seat and handle bars so I needed to change to an adjustable stem. This was easy as was adding a rear rack. Pedals will need upgrading.

Hi Sid

Thank you for your review and it's great that you are enjoying the bike. I hope the weather on your commute improves, but I'm glad the bike could handle everything. We look forward to seeing you again soon. Andy


Excellent quality bike fantastic spec

Have owned the RC520 since January & have about 300 miles covered on the road. Bike was collected setup perfectly, gears & brakes all dialed in. Just a but if fettling with saddle height/position to be expected. The 105 gearing is a world away from my previous road bike, effortlessly shifting with a great range of gearing. The HyRd brakes whilst not as precise as my MTB full hydraulics these are easily the next best thing, brilliant in the wet as well as dry. Have completed a 40 mile ride in perfect comfort the more upright position more suited to long rides. Wheels perhaps a little heavy but no punctures to report i did try & remove a tyre after reading some reviews & whilst they are tight fit i removed/refit with a bit of effort. For the price paid this is easily the best value road bike currently out there.

Defect with the rear tyre.

Bike is lovely but I’ve gone for 5 rides and the rear tyre keeps bursting. Had it replaced by a specialist 23/03/21 and went out 24/03/21 and it burst again. I believe there are other reviews stating this.

First Road Bike *****

Having been around bikes most of my junior and adult life (BMX + Moutain bikes), I decided it was time to enter the world of road cycling. The transition from a Mountain bike to the Triban RC 520 was as smooth as I could have possibly hoped for! After a quick cycle around the block and a couple of minor adjustments (seat height etc..) I went on to conquer a modest 33 mile ride! The geometry of the bike ensured that the entirety of the ride felt comfortable, enjoyable and dare I say it, almost effortless. The bike performed exactly as described by Decathlon with no niggles or hiccups along the way. I have since booked a summer Triathlon and hope to put the bike through its paces in the lead up to race day! Thank you Decathlon for an affordable and enjoyable transition into the wonderful world of road cycling.


Love this bike, for a first time road cyclist this was a very good first purchase. Been cycling for around 7/8 months on this now and no issues on the bike at all. Realy comfy even after 2/3 hrs in the saddle, easy to ride and just overall a very strong sturdy bike 100% recommended

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Size Guide

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Additional Product Information


Bike frame

  • 100% Aluminium 6061


New Triban Evo frame in 6061 T6 aluminum, comfort-oriented geometry with adapted slope Weight: 4 lbs in size M Strong, versatile frame: carrier and mudguard can be installed Compatible with tires up to 36 mm cross-section


New Triban Evo fork with carbon blades and aluminum 1-1/8" Aheadset center. This fork combines comfort, low weight, and precision. The carbon has been designed to provide good lateral rigidity and good filtering of frontal vibrations. Inserts on the blades for mounting a front carrier Max weight to be carried on the fork: 19.8 lbs Holes on the wheel axle to attach a mudguard Compatible with tires up to 36 mm cross-section

Handlebar / stem / steering

Ergonomic aluminum Triban handlebars for a better grip and excellent comfort. Handlebar width (axle-to-axle): XS, S, M: 400 mm. L, XL : 420 mm. New Triban stem: XS : 70 mm S: 80 mm M: 90 mm L: 100 mm XL: 110 mm


Shimano 105 R7000 shifters Shimano 105 R7000 front derailleur Shimano 105 R7000 rear derailleur with 11 speeds and long screed Total weight: 1.9 lbs Chain KMC X series

Crankset / cassette

Microshift CS-H110 11S 11/32 cassette (11/12/13/14/15/17/19/21/24/28/32). Shimano RS 510 compact bottom bracket 50/34. Crank length varies according to size of bike: XS, S: 170 mm. M: 172.5 mm. L, XL: 175 mm.


TRP HY/RD disc brakes. Semi-metal TRP pad (version M515/M525) Mechanical pulling of hydraulic pistons, ensuring reliability and efficiency 160 mm disc at the front and rear Anti-compression JAGWIRE housing to ensure precision and efficiency of braking Waterproof housing cap at the bottom frame diagonal tube


Triban Tubeless Ready Light wheels* 6106T6 aluminum. ETRTO dimension: 622 x 17 C. 24 mm height for increased lateral rigidity. Crossed steel spokes for greater rigidity (28 front and 28 rear). Sealed cartridge bearings. Weight per pair (without cassette and QR): 4.4 lbs *Conversion kit required, including 2 tubeless valves + 2 rim strips + bottle of anti-puncture liquid.


Triban protect light tires 13.8 oz Skinwall stiff bead Nylon anti-puncture protection Durable carcass: 60 TPI. Dimensions: 28c-622 / 700 x 28c for greater comfort Max pressure: 8 bar / 116 psi.

Saddle / seat post

New Triban ErgoFit saddle. Hammock design for greater comfort. Aluminum Triban seat post. Diameter: 27.2 mm. Length: 350 mm in M / L / XL, 250 mm in XS / S


Double side pedal with toe clips


Weight without pedals : XS: 23.1 lbs S : 23.3 lbs M : 23.4 lbs L : 23.8 lbs XL : 24 lbs

Compatible accessories

BASE KICKSTAND 500 ADULT 26-28 (Model Code 8302792) SEAT POST CARRIER 500 (Model Code 8387783) BIKE RACK 500 BCLIP DISC (Model Code 8364376)

Warranty information

"Lifetime warranty on manufacturing defects for all metal frames, rigid forks, stems, and handlebars 5 years warranty on all carbon frames and forks 2 years warranty on all other parts Excludes damages arising from normal wear and tear, misuse, negligence, and unauthorized modifications"



Product testing

What is uncompromised comfort? Laboratory tests: Rigidity of the fork, comfort (geometry) Field tests: Long rides, legendary races (Ardéchoise, Paris-Roubaix, Tour des Flandres, etc.), gravel rides, long distances (with pannier bags)

Storage instructions

Store your bike in a dry, cool place. If riding or storing your bike in a salty environment, be sure to wash your bike after each use.


Lifetime warranty on frame, handlebar, stem. 2 years on fork and peripheral components.

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
  1. product-research

    Research and development

    delivers high-quality cost-effective products

  2. State-of-the-art production processes

    minimize manufacturing costs

  3. Optimized supply chain

    reduces retail prices