B'Twin Triban GRVL 520 Sub Compact Gravel Bike

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B'Twin Triban GRVL 520 Sub Compact Gravel Bike

The B'Twin Triban GRVL 520 Sub Compact Gravel Bike features an aluminium frame, 22 speed 105 disc groupset (2 x 11), 700c wheels, weighs 10.7kg and is finished in red.

B'Twin Triban GRVL 520 Sub Compact Gravel Bike

  • B'TWIN Men's Alloy Gravel Frame
  • Part of the range.
  • 700c Disc Brake Wheels
  • 22 Speed (105 Groupset - 2 x 11)
  • Available in M & L in Red.
  • Weighs 10.7kg

We have designed and tested this gravel bike for regular rides.

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

Frame: New Triban EvoG frame made of aluminium 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: 1750 g in size M.9x135 axle spacing for a Quick Release QR axle / Flat mount brake calliper.

Normative compatibility with tyre cross-sections up to 700.42 and 650.47.

Fork: New Triban EvoG fork with carbon blades and aluminium 1"1 / 8 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 calliper. 2 inserts on each blade for installing a front pannier rack or a bottle cage.

Maximum load on the fork: 10 kg. Compatible with tyres up to 700.42 / 650.47.

Handlebar / Stem / Steering: Triban aluminium gravel handlebars with a 16 degrees 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.

Drivetrain: 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 speeds and long screed.

Total weight: 843 g. So-called "Shadow" rear derailleur for better protection when gravel biking. The derailleur remains under the cassette and does not spring up and hit the chain stay, reducing the risk of it coming off.

Crankset / cassette. MICROSHIFT CS-H110 11S 11 / 34 cassette. (11 / 12 / 13 / 14 / 15 / 17 / 19 / 21 / 24 / 28 / 34).

FC PRAXIS ALBA M30 48-32T bottom bracket.

Crank length varies according to size of bike: XS, S: 170mm.

M: 172.5mm.

L, XL: 175mm. KMC X11-1 + CL555 11S / 112 chain.

Brakes: TRP HY / RD disc brakes.

Cable-operated hydraulic pistons, ensuring reliability and efficiency. 160mm disc at the front and rear. Flat Mount assembly.

Anti-compression Jagwire housing to ensure braking precision and efficiency. Semi-metallic TRP pad (M515 / M525 version).

Wheels: Triban Gravel 7000x23c Tubeless Ready wheels for effective performance and comfort on rolling trails.

6063 T66 aluminium.

ETRTO dimensions: 622x 23 C.

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.

*For converting to tubeless, add 2 tubeless valves (product ref: 8551979) + tubeless anti-puncture liquid sealant (product ref: 836339).

Tyres: Hutchinson Touareg 700x40, Tubeless Ready tyres with hardskin puncture protection.

490 g per tyre. Skinwall dual-rubber flex bead. 127 TPI carcass.

Dimensions: ETRTO 40-622 / 700x40c.

Min inner tube pressure: 2.5 bar / 38psi.

Max inner tube pressure: 3.5 bar / 51 psi.

Tubeless pressure: 2.5 to 3 bar (85 kg rider).

Saddle / Seat post: Triban ErgoFit saddle. Hammock design for greater comfort.

Aluminium Triban seat post. Easy seat adjustment.

Diameter: 27.2mm.

Length: 350 mm in M / L / XL, 300 mm in XS / S. The natural flex of the 27.2 diameter seat post dampens vibrations and shocks for added comfort.

Pedals: Platform pedals included with the bike.

We recommend either flat or SPD pedals. Tyre compatibility. This bike can be equipped with tyres up to 700.42 or 650.47.

Minimum compatibility requirements: 23c wheels and tyres with a cross-section of 37. Bike weight. 10.7 kg in size M, without pedals.

.. more details.

B'Twin Bikes

B'Twin Bikes

B'Twin are a popular choice of bike in the UK, partly due to their widespread distribution by Decathlon, and partly due to the value they offer. Their bikes are divided into several slightly overlapping ranges, with Triban best known for road and gravel bikes, and Rockrider gaining a reputation for high performing MTBs to suit every budget. Elops largely consist of a range of city bikes, whereas Riverside focus on hybrids. All in all, B'Twin bikes are well worth checking out given the size of their ranges; there's a model to suit most budgets.

Triban Bikes

Triban Bikes

The Triban series of Bikes were created in 2018, when Decathlon's B'Twin bikes were divided into different genres. At this point, road & gravel bikes were assigned the Triban moniker, offering both value for money and performance.

Prices for the Triban range start at £300, and increase up to the £1000 mark, resulting in this brand being suitable for beginners and keen road cyclists alike.

If you would like to start road cycling, or dabble in some light off-road riding with a gravel bike, then you won't go far wrong with a Triban bike.

Triban GRVL 520 Sub Compact Gravel Bike Specification

Bike TypeGravel Bikes
Range
Weight10.7kg
Frame MaterialAlloy
Fork TypeRigid Fork
Brakes TypeDisc Brakes
Number of Gears22 Speed
ChainringsDouble Chainring
Cassette11 Speed
Groupset105
Wheel Diameter700c
ColourRed
SizeM & L
GenderMen's
Designed forGravel
BrandB'TWIN
RetailerDecathlon
RRP£1199.99
Lowest Price£1199.99

Gravel Bike Deals

Why not check out these gravel bike deals?

Or view all of my latest gravel bikes deals.

Gravel bikes are one of most versatile forms of bicycles, being equally adept at long road rides and offroad excursions! Featuring fast rolling 700c wheels with enough clearance to run large tyres and (usually!) disc brakes too, a decent gravel bike is the perfect solution for the cyclist looking for that single do-it-all bike; such as the popular entry level Merlin Malt G2.

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