Decathlon Triban RC 500 Disc Brake review

Decathlon’s understated, versatile all-rounder

Our rating 
4.5 out of 5 star rating 4.5
GBP £650.00 RRP | USD $999.00
Pack shot of the Triban RC500 road bike

Our review

Great value all-rounder with quality kit and a comfortable ride
Pros: Shimano Sora groupset; good brakes; comprehensive fixtures and fittings; versatility
Cons: Slightly weighty
Skip to view product specifications

Decathlon’s Triban brand has built a reputation for delivering impressive bikes at real-world prices.


The Triban RC 500 helps the French brand maintain that reputation, even if it has increased in price by more than £100 from the 2019 and 2020 models.

However, despite still not being as expensive as some of its competitors in the market, the Triban has a higher-grade Shimano Sora groupset than many of them.

It also has cable disc brakes and clearance for wide tyres (700×36 or 650×40), while its fork even has fittings for a front rack and a 9kg carrying capacity, upping the versatility factor further still.

Triban RC 500 details and specifications

The RC500 is a versatile and well-specced bike for the money.
Russell Burton / Our Media

The Triban RC 500 has an aluminium frame, as we’d expect for a bike of this price, paired with a fork sporting carbon blades and an aluminium steerer.

Claimed frame weight is 1,780g for a size medium, according to Decathlon, while the fork comes in at 680g.

Signalling the Triban RC 500’s intentions as a versatile all-rounder,  the bike has wide 28mm Protect+ tyres that measure a shade over 29mm on the Triban rims.

The frame is fitted with a Shimano Sora R3000 nine-speed drivetrain, pairing a 50-34t compact crankset with an 11-32t Microshift cassette.

Braking comes courtesy of Promax DSK-300R mechanical disc brakes with 160mm rotors at the front and rear.

Finally, the finishing kit – stem, handlebar and seatpost – is all aluminium Triban own-brand kit, as is the Triban ErgoFit saddle.

Triban RC 500 geometry

The Triban RC 500 has a comfort-focussed geometry available in five sizes from XS to XL.

Seat angle (degrees)7574.573.573.573
Head angle (degrees)69.870.871.57373
Chainstay (mm)425425425425425
Seat tube (mm)450480500520530
Top tube (mm)515530548564580
Head tube (mm)115130155185215
Wheelbase (mm)1,0101,0121,014.51,0161,026
Reach (mm)375380379385386
Stack (mm)524542569603633

Triban RC 500 performance

The RC500 has a new, user-friendly seatpost and ‘No Gap’ stem.
Russell Burton / Our Media

The RC 500 is easy to set up, with a couple of nice touches for the novice or less able home mechanic.

The seatpost has measurements on it to make it easy to set and adjust the saddle height, and the RC500 also has Triban’s new ‘No Gap’ stem.

The top of the stem’s face plate tightens flush against the stem body, with the lower two bolts tightened in the usual way, ideally with a torque wrench, making it virtually impossible to over-tighten.

It might be a small thing, but it’s a nice touch nevertheless.

The Triban RC 500’s geometry, with the slack 71.5-degree head angle, long wheelbase and shorter top tube, all point to more leisurely riding ambitions than racier options.

The presence of a Shimano Sora drivetrain is impressive at this price.
Russell Burton / Our Media

The handlebar is also well suited to a more laid-back style of riding, with the tops very slightly swept back and flattened, making an ideal handhold for long days out, where comfort and big mileage are more important than full-on speed.

However, when you do crank it up to speed, the RC 500 holds its pace well and is more than happy ticking along at a pace.

The Triban RC500’s groupset and brakes are well-chosen and represent good value for money at this price.

Whereas bikes such as the Boardman SLR 8.6 and Mango OG 2X8 have eight-speed Shimano Claris, Triban has managed a near-complete Sora groupset, with the MicroShift cassette the only deviation.

A slightly swept-back, flattened handlebar gives all-day comfort.
Russell Burton / Our Media

Sora is an excellent road bike groupset and a long-time favourite of mine, with smooth and accurate shifting. The wide-range cassette seemed to prove its equal and, paired with the compact crankset, provides a generous spread of gears for climbing.

I’m also a big fan of wider tyres, which are not only more comfortable but usually just as fast, and mean you can point the Triban RC 500 down a few dry dirt tracks should you desire.

The stock Resist+ tyres are tough and grippy and, with the RC 500 having clearance for 700c tyres up to 36mm wide and 650b tyres up to 40mm, gravel riding and bikepacking come within reach.

The cable-actuated disc brakes are consistent and quiet.
Russell Burton / Our Media

The stock wheel and tyre combo is pretty heavy, though, with the wheels weighing in at 2,200g. That does hamper acceleration, but they smooth out potholes and poor road surfaces admirably.

The rims can be upgraded to tubeless, should you wish to ditch the inner tubes and fit a set of the best tubeless road tyres to unleash more of the bike’s potential.

Finally, while the Promax cable-actuated discs are never going to equal the power of hydraulic road disc brakes, or better the best rim brakes, they proved smooth, consistent and quiet – and they won’t wear your rims out, an often-overlooked advantage of discs.

Triban RC 500 bottom line

If you want a budget-friendly bike for everything from commuting to light bikepacking, this hits the sweetspot.
Russell Burton / Our Media

If you’re looking for a sharp-handling, point-and-shoot race bike, you’re probably best off looking elsewhere.

But if you want a quality bike for big days out, cycling to work, loading up with shopping, or perhaps adventurous weekends – and longer trips – away, consider Decathlon’s well-appointed RC500.

It offers you a whole lot of bike for quite a modest amount of cash and hits the sweetspot as a budget-friendly road bike for everything from commuting to light bikepacking.

Also consider…

Got a little less or a little more to spend? The Triban range also includes the more affordable RC 120 Disc – one of the best cheap road bikes we’ve reviewed – and the upgraded RC 520 Disc.

A little less… Triban RC 120 Disc

The Triban RC 120 Disc has the same frame and fork as the RC 500 tested here.
David Caudery / Immediate Media

It’s the same frame, fork and Promax disc brakes, but the gearing is from MicroShift’s eight-speed setup with a Shimano compact chainset and a wide-ranging 11-34t cassette to give you plenty of gears.

A little more… Triban RC 520 Disc

Shimano 105 and TRP’s HY/RD brakes make the Triban RC 520 very good value as a sub-£1,000 road bike.
David Caudery / Immediate Media

Our test bike’s big brother also has the same 6061 aluminium frame, but its notable component upgrades include a Shimano 105 groupset and TRP HY/RD mechanical/hydraulic disc brakes, making this one of the best road bikes under £1,000.


Product Specifications


Price GBP £650.00USD $999.00
Weight 10.7kg (M)
Brand Triban


Available sizes XS, S, M, L, XL
Headset 1 1/8in Aheadset
Tyres Triban Resist+, 700x28c
Stem Triban No Gap alloy 31.8mm
Shifter Shimano Sora
Seatpost Triban 27.2mm alloy
Saddle Triban ErgoFit
Rear derailleur Shimano Sora
Handlebar Triban alloy 31.8mm
Bottom bracket Shimano RS500
Frame 6061 T6 aluminium
Fork Triban Evo, carbon blades, 1 1/8in straight alloy steerer
Cranks Shimano Sora 50/34, 170mm
Chain KMC Z9
Cassette Microshift CS-H092, 11-32
Brakes Promax DSK-300R cable discs, 160mm discs
Wheels Triban Tubeless-Ready 6063 aluminium