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Triban GRVL 520 Subcompact Gravel Bike

Sale price: $1,199.00 Regular price: $1,799.00

Our new Gravel bike has a new specific geometry, Tubeless Ready Gravel wheels and tires, Shimano 105 and Sub-Compact Praxis 48/32 provide comfort and versatility on rolling trails

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Sale price: $1,199.00 Regular price: $1,799.00

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San Francisco, 735 Market St. Options

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About this item:

  • New T6 6061 Aluminum Triban EvoG Frame
  • New Triban EvoG Carbon fork with an aluminum steerer tube.
  • Shimano 105 Groupset with SubCompact 48/32 - 11/34
  • TRP Hydraulic disc brakes
Model: 8786233

Product Videos

Product Features

A photo of the Triban GRVL 520 Subcompact Gravel Bike in use
A photo of the Triban GRVL 520 Subcompact Gravel Bike in use

Triban GRVL 520 Subcompact Gravel Bike | A gravel bike designed for regular rides. Ensuring comfort and versatility on trails and rolling terrain

Our new Gravel bike has a new specific geometry, Tubeless Ready Gravel wheels and tires, Shimano 105 and Sub-Compact Praxis 48/32 provide comfort and versatility on rolling trails

Cycling comfort

Wide handlebar with a 16° flare, gel bar tape, 700.23c TLR wheels, 40 TLR tyres


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

Brake control

Hydro-mech disc brakes: effective, progressive braking with semi-metallic pad


GRVL gravel-specific geometry is more comfortable and versatile

Questions & Answers

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


What is the stand over height of these bikes? Particularly the XS size.


Stand over hieght measured from the nose of the saddle is 27.75" - keep in mind that the person evaluating the standover should measure thier inseam with shoes on

By Thierry on Apl 8, 2024 | STAFF

Product Customer Reviews

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418 Reviews
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Excellent All Round Bike

Really impressed with this bike. Have just used for 3 day cycle from north to south Wales. Mainly off-road. Performed really well on some very rough tracks with no mechanicals. Chainset has good range so able to grind up big inclines as well as get decent drive down hills. Couple of excursions into bike parks where it was nimble and stable despite having panniers. Also use it for commuting and errands around London.

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Excellent gravel

This bike responds perfectly to the program that I set for myself, half road, half path. After a quick adjustment phase with the help of the Decathlon Wagram salespeople in Paris 8th and the replacement of the original saddle which was not very comfortable, it became very adapted to my body shape. It's incredibly pleasant to ride with him and he eats up the miles with ease.

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Off-center rear wheel

Happy with the bike, except that the rear wheel is not centered between the seatstays, it is closer to the left seatstay. I was told at the store that it was happening and that there was nothing to do... Other than that the bike is great.

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Very good purchase. As much…

Very good purchase. As comfortable on the road as on the trail. This is exactly what I was looking for. After a few outings already, I am delighted with this purchase. I will just change the pedals which I think spoils the general look of the bike a little, but nothing too serious.

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Very versatile and…

Very versatile and rather robust bike. After 1000km, no problems to report. The transmission with the Shimano 105 is very precise. Very wide speed distribution which allows you to pass all the big bumps and have a lot of fun on the smoother sections. Hybrid braking, frankly effective after 2/3 adjustment initially. I think it's a very good compromise at an unrivaled price if you're looking for an all-around bike. If you are looking for pure performance, however, you will have to move upmarket.

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Very good value for money

First Gravel for me and I'm not disappointed. Already more than 500 km traveled together and it holds up well. I recommend it to anyone who wants an affordable first gravel bike.

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Opinion after almost 2 years of use and 4000 km

This is my first gravel ride and my return to cycling for over 20 years, even though I have practiced other sports. I mainly ride on northern roads although I had the opportunity to take it to the Alps. I have used it so far for road outings (75% of the time) gravel outings (5% of the time) and the famous "vélotaf". In terms of strengths: Value for money that there is no longer any need to demonstrate to the competition. Comfort of use in terms of position on the bike (I had the opportunity to cycle for 4 days consecutively with long outings and I never had back pain) and even the very pleasant handlebar tape (I just tested another bike and this is a point that stood out to me) All the fixing points for placing panniers and other joys of long distance riding even if I only use the points to attach panniers to the The ideal rear for “vélotaf”. Overall, it's a pleasure to work with this machine. The subcompact 48/32 and the sprocket cassette allow great tolerance on very rolling courses to send watts and conversely for climbing trees or very uneven courses. As a weak point I would say the rims which only allow you to go down to 37mm in terms of tire size, which is a handicap if you want to do more "rolling" (which is the case for me now that I have a little more perspective on my back from my cycling). I am a fairly heavy runner (to which I sometimes add my panniers) and the rim tape had to be changed (taken from the warranty and quickly changed at Btwin) because the wheel must have suffered quite a bit from my activity. This bike really offers versatility in use and will allow you to discover or rediscover cycling. If you are hesitant in your practice, go for this bike which will allow you to have fun on all the paths you take without coming out completely broken.

fantastic for quality/price

I wanted to wait before leaving a review to see how it performed. Initially bought to travel the 9km to work, but it is so comfortable that I also use it in my free time... Bought almost a year ago, used daily for 18-20km...on weekends I ride up to 120km...never had it one problem apart from the occasional puncture. Well built frame is quite solid, very light and the color is still like the first day. Brakes are good for the price even if they could be a little more... but they are more than good. Gearbox works well and is very fast. unfortunately it was set badly like other things that I will explain later... the standard sprocket set works best on flat or slight slopes... forget about doing prolonged climbs. for everything else it is fantastic for the quality/price ratio.. 1 star for how it arrived or rather for how it was mounted, the handlebar was crooked and even a few degrees... as mentioned, the gearbox was set badly, the 1st gear didn't even go up and the 2nd -3 it jumped... However more than satisfied with the use I make of it.

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Hello, I am satisfied…

Hello, I am satisfied with the original settings.

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Very solid gravel bike and great looks

Positive: + Quality is completely fine for the price + Color is very nice and not so boring + Braking performance is better than expected + Brake and shift cables or wires are on the outside of the frame, which makes handling and adjustment/replacement much easier + Lots of threads for attaching bags (fork, in the frame in two places, etc.) + Nice minimalist tools are included Negative: - Gear shift may need to be fine-tuned after assembly - Rubber protection, which is supposed to prevent the cables from rubbing at the front, sometimes slips a bit (luxury problem) I'm about 185cm, frame size L is perfect and there's still a bit of room for adjustment

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Bought 1 month ago, I'm skipping the delivery which lasted 3 times the usual duration (package canceled twice because of paint problems then second package sent to the wrong store) these are things that happen. The first 15 days went well, the bike was nice but I still had to go back to the workshop to readjust the rear derailleur which had been hastily fitted. After 1 month of use, a cracking noise is heard in the frame, return to the workshop, I will have to wait 3 to 4 weeks. The bike is my vehicle for going to work, no solution is offered to me to replace it during repairs. This is a disastrous experience for my bike at Decathlon.

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Best quality price report

Shimano 105 at this price... The bike is impressive, it offers high performance and I have full confidence in it. I use it for both sports and cycling outings. Small downside: I had to adjust the brakes myself and the gear change is imprecise due to poor adjustment.

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Saving in the wrong place.

Why don't you make the bike about 200 euros more expensive and equip it with a fully hydraulic brake and thru axles? What a shame.

Recurring brake caliper problems

Bike purchased in 2022, after a lot of terminals on it I always had brake problems with the calipers. The pistons of the TRP hydro-mechanical calipers systematically end up no longer returning to the starting position, which asymmetrically and prematurely wears the pads until the piston comes out or completely blocks the disc. In January 2024 I made a return and after 2 MONTHS of waiting to order a replacement caliper (don't be in too much of a hurry) from the store and resolve the problem my 2 front and rear calipers are again stuck in the tightening position thus constantly braking the wheels. Despite the oil change, the latter do not return to neutral position and therefore need to be changed again... I will therefore have to get quotes to switch to mechanical because the complete hydraulic change costs around €570 at Decathlon. .. To be continued,

A good base but problems

This is my second decathlon bike. The first one (Riverside 7) was always extremely satisfying. This is unfortunately not the case with this one. The rim tapes were already missing, which were added by Decathlon after multiple punctures. Not great customer experience from the start. There were also missing screws which were added afterwards. But now more serious, I just broke my cassette body without any shock in the middle of a week-long cycling trip in Brittany with a friend. On the road. All one day after the end of the warranty year. I had to cancel the trip altogether due to a lack of parts available at Decathlon. The very big hassle... In short, I am very disappointed with Decathlon and for the moment have absolutely no confidence in this bike. It's a shame because it's very pretty and quite pleasant to drive. Pretty well equipped for the price. But clearly having to pay for a rear wheel again doesn't satisfy me at all. For the first time, I am disappointed by Decathlon and I am not sure I will buy a bike from this brand in the future.
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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: 154 - 165 cm (5' - 5'5'') S:165 - 173 cm (5'5'' - 5'9'') M: 173 - 180 cm (5'9''- 5'11'') L: 180 - 188 cm (5'11'' - 6'2'') XL: 188 - 200 cm (6'2'' - 6'7'')


New Triban EvoG frame made of aluminum 6061 T6, with its new Triban GRVL gravel-specific geometry for a better balance between comfort and steering. Strong, versatile frame: can install a mudguard and pannier rack Weight: 24lbs in size M.9x135 axle spacing for a Quick Release QR axle / Flat mount brake calliper Normative compatibility with tire cross-sections up to 700 x 42 mm and 650 x 47 mm


New Triban EvoG fork with carbon blades and aluminum 1 1/8'' (28.5 mm) 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 tires up to 700 x 42 mm / 650 x 47 mm


Triban aluminum gravel handlebars with a 16° flare for better grip and excellent comfort. Handlebar width end to end: XS/S: 420 mm (16 1/2'') M/L: 440 mm (17 1/3”) XL: 460 mm (18'') Stem: XS: 60 mm (2 1/3'') S: 70 mm (2 3/4'') M: 80 mm (3'') L: 90 mm (3 1/2'') XL: 100 mm (4')


SubCompact 48/32 - 11/34 drive train for greater versatility Shimano 105 R7000 shifters, Shimano 105 R7000 front derailleur, Shimano 105 R7000 rear derailleur with 11 gears and long screed. Total weight: 843 g (30 oz.) Shadow rear derailleur for better protection when gravel biking. The derailleur remains under the cassette and has a low risk of it coming off.


Microshift CS-H110 11S 11/34 cassette (11/12/13/14/15/17/19/21/24/28/34). FC Praxis Alba M 30 48-32T bottom bracket. Crank length varies according to bike’s size: XS, S: 170 mm (6 2/3''). M: 172.5 mm (6 4/5''). L, XL: 175 mm (7'). KMC X11-1 + CL555 11S / 112 chain


TRP HY/RD disc brakes. Cable-operated hydraulic pistons, ensuring reliability and efficiency. 160 mm (6 1/3'') 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)


Triban Gravel 700 x 23 mm Tubeless Ready wheels for effective performance and comfort on rolling trails. 6063 T66 aluminum. ETRTO dimensions: 622 x 23 mm.Height: 19 mm (3/4'') 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 (4 3/4 lbs) Tesa TLR* rim strip


Hutchinson Touareg 700 x 40 mm, Tubeless Ready tires with hardskin puncture protection. 490 g (17 oz.) per tire. Skinwall dual-rubber flex bead. 127 TPI carcass Dimensions: ETRTO 40-622 / 700x40c. Min inner tube pressure: 2.5 bar / 38 psi. Max inner tube pressure: 3.5 bar / 51 psi. Tubeless pressure: 2.5 to 3 bars (85 kg [190 lbs] rider) This bike can be equipped with tires up to 700.42 or 650.47 Minimum compatibility requirements: 23c wheels and tires with a cross-section of 37



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