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Triban GRVL 520 1x Gravel Bike

Sale price: $1,299.00 Regular price: $1,799.00

This gravel bike has a new gravel-specific geometry, Gravel 650 wheels and 47 Tubeless Ready tyres, SRAM APEX1 40T 11/42 single chainring. Designed for comfort and handling on and off road.

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Sale price: $1,299.00 Regular price: $1,799.00

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San Francisco, 735 Market St. Options

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About this item:

  • Versatile & Comfortable GRVL gravel-specific geometry
  • New T6 6061 Aluminum Triban EvoG Frame with Carbon Fork
  • SRAM APEX 1X groupset with a 40T chainring and an 11/42 cassette
  • TRP Hydraulic disc brakes
Model: 8786234

Product Videos

Product Features

A photo of the Triban GRVL 520 1x Gravel Bike in use
A photo of the Triban GRVL 520 1x Gravel Bike in use

Triban GRVL 520 1x Gravel Bike | We have designed and tested this gravel bike for comfort in a variety of environments.

This gravel bike has a new gravel-specific geometry, Gravel 650 wheels and 47 Tubeless Ready tyres, SRAM APEX1 40T 11/42 single chainring. Designed for comfort and handling on and off road.

Cycling comfort

Wide handlebar with a 16° flare, gel bar tape, 650.23c TLR wheels, 47 TLR tyres


SRAM APEX 1 groupset in 40T-11/42

User comfort

GRVL gravel-specific geometry is more comfortable and versatile

Product Lifestyle Image Gallery

Image Gallery

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Questions & Answers

Product Customer Reviews

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215 Reviews
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New gravel bike

Very functional bike, light, fluid, agile on all types of terrain. It's just a shame that there is no damping system to avoid being hit by the slightest difference in height.

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Perfect, light

Perfect, light


The bike will go through everything in its path and go anywhere, it makes a very good impression at the initial contact. and it doesn't disappoint on the road.

Very good price/performance ratio. Easy assembly out of the box.

I will save others the madness of finding the circumference of a wheel with tires Hutchinson TOUAREG 650x47 Dimensions ETRTO 47-584 / 650x47c, for setting cycle computers CIRCUMFERENCE: 2130mm

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Good value for money…

Good value for money I recommend

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The perfect bike for me.

This is a bike I wouldn't change a thing about. It is complete in every respect and meets all my expectations. I finally found the perfect bike that had all the features I was looking for.

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Very good bike

Very happy with the bike but I'm having difficulty finding the right mudguards. Indeed, I am recommended the SKS Speedrocker but they are for 28/700. However, the wheel of this gravel is 650. Can I take the same ones? THANKS !

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bike good, that's why we bought it despite how badly Decathlon communicated the delivery date. They wrote on the websites 3-4 days, after completing the order it changed to 5-6 days on the website, but I had an estimated delivery in 8 days. On the seventh day they wrote that it would be delayed and on the evening of the 10th that it was ready. Actually, nothing happened, but it's the kind of nothing that slowly frustrates you until it turns you off. So in the meantime, we rented a bike from a rental company, which made it more expensive, and the rental fee cannot be deducted from the purchase, as it is elsewhere, nor can you buy the bike directly that you rent. Just a lax French juggernaut :D But yeah, good, in the end they gave me a voucher for 500 so I wouldn't be so displeased. Better than a pump through the bite!

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very good bike

For the moment more than 2000km covered, RAS. I dread changing tires in the event of a puncture however, very difficult to change...

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positive surprise

I drove it on loan. A positive surprise - the 1x11 drive is silent, a miracle for me (I have 1x12 on SLX in my Marin and it rattles on the largest sprocket), comfortable, small, light, agile. Cons: strange brakes, cables not hidden. Comfortable for me, more for cruising along winding paths, it's not a cruiser. I think it's too expensive, priced at PLN 5,000. then you can add more money, choose a loan and take out something else. As if it cost 4,000. that would be a nice proposition. The 1x11 drive certainly does its job in terms of quality. And it's also a plus that it has 23mm rims, you could add wide tubeless tires and it would be comfortable. I am 182 cm, size L was perfect, I didn't feel like I was falling on the handlebars, and when I grabbed the steering tube I was very upright. Wrapping - I don't know, but what a problem to change.

Excellent gravel

Already the owner of a Grvl 120 which is very good for road cycling or even a little more, I wanted to move up to the higher range with this Grvl 520. What a difference! Much more responsive and comfortable thanks to the 650x47 Touaregs that I had mounted directly tubeless by the Montbéliard decathlon team. After two big outings ranging from the road (very rolling despite the large section) to single track in the forest full of roots and mud via good gravel paths, I am fully satisfied. This bike goes everywhere, remains playful, precise and comfortable. OK, the hydromechanical braking is not worth a full hydrolic one but that is the only "negative" point that I can criticize it for. Looking forward to equipping it with a bikepacking bag and testing it on longer rides. In my opinion, very good value for money.

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super gravel bike

This is my first gravel, this one is very good value for money. I drive with it almost every day, impeccable comfort and flawless transmission. Bravo to the Decathlon technician because I didn't have to tighten or adjust anything.

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Triban 520 sram size M

Following several problems and numerous visits for repairs (derailleur, brake) with the subcompact I was offered an exchange with the 520 Sram nothing to do with the other model for the moment just another small problem on the large cassette which does not hang which I hope will be fixed during my first visit to the workshop

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Good bike

After several months of use, in all weathers, the bike is really great. It goes everywhere and allows you to be comfortable on all terrains (the tires are limited in the mud but we knew that, and the rest is great). Small negative points, the saddle is really not crazy and the adjustment of the derailleur is complicated.


A dear friend of mine said "the tool is nalet" about this bike, so I named it Nalet :) In one of the comments, a person was unfair because he did not like the cargo packaging of the bike and gave 1 star to all its features and reduced his score. It is definitely very satisfactory and one of the best options in terms of price and performance. You can use it on the road, you can use it for work in the city, you can use it for trekking, it is already perfect for bikepacking. I will refresh the review after long use, but now I owe two thanks; I would like to leave a big thank you to Mr. Arda from the Eskişehir Decathlon team, who inspired me to buy this bike, and to Mr. Enes, who took care of the installation of the bike after purchasing it and accompanied Mr. Arda with his valuable advice about my bike.
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Size Guide

Size Guide Visual

Additional Product Information

Choosing the right size

Choose your bike size based on your height and build (arm span and leg length). If you are between sizes, opting for the smaller size will give you a more comfortable position that makes it easier to tackle gravel trails. XS: 5' - 5'3'' (154 - 165 cm) S: 5'3'' - 5'6'' (165 - 173 cm) M: 5'6''- 5'10'' (173 - 180 cm) L: 5'10'' - 6'2'' (180 - 188 cm) XL: 6'2'' - 6'6'' (188 - 200 cm)


New Triban EvoG frame made of aluminum 6061 T6, with its new Triban GRVL gravel-specific geometry for a better balance between comfort and handling. Strong, versatile frame: can install a mudguard and pannier rack. Weight: 1750 g in size M.9x135 axle spacing for a Quick Release QR axle / Flat mount brake caliper. Normative compatibility with tyre cross-sections up to 700.42 and 650.47


New Triban EvoG fork with carbon blades and aluminum 1 ⅛” Aheadset steerer tube.This fork combines comfort, low weight, and precision. The carbon has been designed for good lateral rigidity and good filtering of frontal vibrations. Flat mount caliper. 2 inserts on each blade for installing a front pannier rack or a bottle cage. Maximum load on the fork: 22 lbs (10 kg) Compatible with tyres up to 700.42 / 650.47


TRP HY/RD disc brakes. Cable-operated hydraulic pistons, ensuring reliability and efficiency. 160mm disc at the front and rear. Flat Mount assembly. JAGWIRE anti-compression housing to ensure braking precision and efficacy. TRP semi-metallic plate (version M515/M525)


Simple and effective with the SRAM APEX1 for off-road riding. SRAM APEX 1 shifters. SRAM APEX 1 rear derailleur. Rear derailleur weight: 314 g. SRAM PC1110 chain. Chain weight: 273 g.

Crankset / cassette

SRAM APEX 1 PG1130 11-42 cassette (11/13/15/17/19/22/25/28/32/36/42) Cassette weight: 528 g. SRAM S350-1 APEX 1 40 chainset. Different crank lengths depending on the bike size: XS, S: 170mm.M: 172.5mm.L, XL: 175mm. Bottom bracket weight in 172.5: 790 g

Saddle / seat post

Triban ErgoFit saddle. Hammock design for greater comfort. Aluminium Triban seat post. Easy seat adjustment. Diameter: 27.2mm. Length: 300 mm in size XS / S, 350 mm in size M / L / XL. The natural flex of the seat post (thanks to its 27.2mm diameter) allows you to filter vibrations and impacts for greater comfort

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: 460mm. Stem: XS: 60 mm. S: 70mm. M: 80mm. L: 90 mm. XL: 100mm.


Triban Gravel 650x23c Tubeless Ready wheels for effective steering and comfort on off-road terrain. 6063 T66 aluminum. TEKTRO dimensions: 584'' x 23''Height: 19 mm. Crossed steel spokes (28 front and 28 rear). Sealed cartridge bearings.9x100 front, 9x135 rear QR axle. Weight per pair (without cassette and QR): 2.15 kg. TESA TLR* rim strip.




Size Guide Visual

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