B’Twin Triban 520 review

The best road bike you can buy for £500

Our rating 
5.0 out of 5 star rating 5.0
GBP £499.00 RRP

Our review

Exceptional mix of lively, comfortable and practical chassis and componentry value
Buy if, You want the best road bike for £500 — an excellent all-round road bike that offers exceptional value for money
Pros: Excellent, comfortable, practical performance frame with outstanding value, Sora transmission and sorted kit
Cons: Not everyone will need/want a triple chainring crankset
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Bikes from B’Twin have been under some of the pro WorldTour peloton, but where they really win is delivering awesome value at an affordable level. That’s the case here with the Triban 520 delivering a package that doesn’t just kill on price but performance too.


The fact that it comes with a full Shimano Sora transmission is the immediate headline, but there’s a lot to savour before you even ride it.

The choice of a triple chainset might seem odd to more experienced riders, but having a wide range of closely spaced gears is no bad thing for less trained or less experienced riders who might struggle on climbs without them.

The Sora crankset is a thing of high stiffness beauty, with lightweight, hard-wearing and slick shifting chainrings that sit flush with the four-arm spider. It has a built-in axle for extra stiffness as well as external bottom bracket bearings, which also add broad stance rigidity when you’re grinding out the revs. Crank arm lengths are matched to frame size, which is a great touch at this price.

Full Shimano Sora is an amazing find at this price
Full Shimano Sora is an amazing find at this price
Philip Sowels / Immediate Media

The B’Twin labelled Tektro brakes come with upgraded TRP (Tektro Racing Products) cartridge pads for sharper, more easily controlled stopping power. The ‘Aero’ rims have an angular coffin profile rather than anything obviously drag-reducing but they do have eyelets to spread stress.

The Michelin Dynamic Sport tyres are fast rolling, slightly fatter than the stated 25mm and grippier in grim weather than you might expect for a totally slick tread.

The two-tone bar tape gives an eye-catching look while the saddle is a dead ringer for the classic Selle Italia SLR, with a thin skin over a pressure-relieving cutaway section.

B’Twin clearly hasn’t skimped on frame quality. The head tube is straight gauge rather than tapered but the 12K carbon-legged fork features bosses for both mudguards and ‘Low Rider’ pannier racks, matching the ’guard and rack points out back.

Lively, comfortable and practical
Lively, comfortable and practical
Russell Burton / Immediate Media

The angular squared to hex down-tube and rectangular top tube use external cables with built-in tension adjusters to keep servicing simple, so you’re looking at a very practical package.

A skinny 27.2mm seatpost keeps life in the saddle smooth, while tapering D-shaped chainstays and shelved dropouts holding the rear wheel promise decent performance.

It’s a promise that the Triban 520 is keen to deliver on. Handling is keen and usefully precise, and all this encouraging acceleration and accuracy sits on a backdrop of surface-smoothing buoyancy that a bike double the price would be proud of.


The fork received a lot of praise from our test team for its compliant yet confident character, even down sketchy wet and twisty descents on the North York Moors. As well as great performance and kit value, seven frame sizes mean a finely graded fit, you get a choice of black/white or grey colours and frame, fork and cockpit come with a lifetime warranty.

Product Specifications


Name Triban 520
Brand Btwin

Available Sizes 42cm 44cm 47cm 49cm 51cm 53cm
Rear Wheel Weight 1980
Frame size tested 54cm
Wheelbase (cm) 99.5
Top Tube (cm) 55
Seat Tube (cm) 50
Chainstays (cm) 41.5
Wheelset B'Twin Sport
Weight (kg) 10.21
Trail 6
Stem B'Twin Sport
Shifters Shimano Sora 3x9
Seatpost B'Twin Sport
Seat Angle 73.5
Saddle B'Twin Sport Ergo fit
Rear Tyre Michelin Dynamic Sport, 25mm
Bottom Bracket Shimano HT11
Rear Derailleur Shimano Sora
Headset Type Aheadset
Head Angle 72.5
Handlebar B'Twin Sport
Front Wheel Weight 1380
Front Tyre Michelin Dynamic Sport, 25mm
Front Derailleur Shimano Sora
Frame Material B'Twin Sport 6061 T6 alloy
Fork Offset 4.5
Fork B'Twin Sport carbon legs, straight alloy steerer
Cranks Shimano Sora 50/39/30
Chain KMC X8
Cassette Sunrace 12-25
Brakes Tektro deep drop dual-pivot
All measurements for frame size tested 54cm