An aluminium racing bike, triple crankset

All Bikes - Triban 300 Road Bike, White B'TWIN
  • All Bikes - Triban 300 Road Bike, White B'TWIN
  • All Bikes - Triban 300 Road Bike, White B'TWIN
  • All Bikes - Triban 300 Road Bike, White B'TWIN
  • All Bikes - Triban 300 Road Bike, White B'TWIN
  • All Bikes - Triban 300 Road Bike, White B'TWIN
  • All Bikes - Triban 300 Road Bike, White B'TWIN
  • All Bikes - Triban 300 Road Bike, White B'TWIN
All Bikes

B'TWIN Triban 300 Road Bike, White

The Triban 300 is the perfect Road Bike for occasional Road Cycling or commuting to work by bike. This road bike has a triple chainset and 24 speed gears. It comes with a lifetime warranty b'Twin Triban alloy frame. A very comfortable ride for any entry level Road Cyclist or for riding to work. The microshift gears work very well. The frame is rear panier rack ready. Hutchinson equinox tyres. The smaller frames (43, 45, 48 & 51) come with 650 wheels. NOTE: Size 43 comes with 16 gears and not 24 gears (double and not tripple chainset).

Road Bike Size Guide click here

To view our full range visit our Road Bikes category.

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Reference : 8239800

4.3 / 5

119 reviews

104 people recommend this product

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OK bike but bad wheels

Frame, groupset



  (United Kingdom)

20-29 years old    Man

3 5

used for 7 to 12 months Bike is ok for starting rider but the wheel is really bad. The wheel never hold true, rear wheel warped within a couple of months, with less than 500km on it with normal cycling, front wheel creaks after about 600km, had to keep going to my lbs to true the wheels. Suspect it is the cones or bearings that are gone. Went into the store in Reading and got brushed off that there is no warranty for the wheels. Mechanic told me it might be other parts of my bike that is causing the creaking sound. Had one of my mate to put his 700x23 wheels on mine and no creaking sound. Isolated to the wheels. Had seen good reviews for the bike, therefore the purchase, but the service was just unreasonable. Retail staff even told me to get a new pair of wheels, Mavic, for 144GBP. That's like half of the price I paid for the bike. I really can't bring myself back to the store. Service was bad. Please do something about it. I don't even ride the bike often.


Good Frame good asthetics

poor wheels basic components


  (United Kingdom)

20-29 years old    Man

4 5

used for 3 to 6 months I bought this bike for my dad because hes doing a thirty mile bike ride to blackpool with work and wanted a road bike- he doesn't know much about them. Id bought a bike from decathlon before and I think the sizing is skew whiff- the 60 isn't a 60 its a 58 and they measure it by the top tube. Anyway I looked into this before with sizing charts etc and the bike I bought fit my dad fine. Ive ended up riding it more than he has. The standard wheels are rubbish in fact they weren't even true when I got them so I used some different ones from quest. The frame is excellent for id pay £250 for that. The componentry is basic and things have on occasion gone wrong with it. But for a £250 bike its what you expect.People who complain that they've had to take it back to decathlon and stuff annoy me. You buy the frame get fitted to the bike and then if you like cycling and are committed you get better components like shimano 105 or ultegra. The tyres are ok, but my criticism is they could have done with being 25's. The type of rider this is aimed at is going to be your budget cyclist possibly a commuter someone new to the sport. 23's feel skittish and are best suited to people who are racers and can read grip better. I fitted 25mm Gatorskins and my dad is actually considering doing the blackpool run and on the plus side hes not been rendered infertile. 28 or a 25mm tyre makes such a difference of whether your in a hedge or on the road. Good asthetics aswell. I put blue handlebar tape some different wheels and skinwall tyres and the bike looks like Lance Armstrong's 2001 TDF winning bike.So overall good bike

Great bike

Over 12 months ownership and all good



  (United Kingdom)

50-59 years old    Man

5 5

used for More than 1 year Got back on a bike, an old hybrid for £30, in March 2014 because, against my better judgement, was persuaded to do the 2014 London Pru 100. Trained like crazy inc. a 92 miler in 6 hours 12. Did the London Pru 2014, not quite 100, as the tail end of a storm hit the south east of England, in under 6 hours. I've spent £40 on a saddle upgrade and that's it. Why pay more? Are you really going to save 10 minutes on a 100 mile ride by paying over a grand to save 2kgs. I think not. A brilliant bike for the money and never a single problem.

Good solid bike


  (United Kingdom)

4 5

Had this bike now for 10 months, it's been a great bike so far, regularly riding 40-80 miles a week, feels fast and looks great, unfortunately I have had problems with the gears and derailer, very clicky noises and it won't go into my small cog on the front chainset which can be a bit of a problem when going up hills. Also had to get new chain and cassette recently, still having problems with gears but hope it'll get sorted soon?! Other than these issues it's a great value bike

Great bike


  (United Kingdom)

5 5

All the bike magazines will tell you it's the best bike for under £500 and that's a true summary. Great bike !

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Frame 6061-T6 aluminium, sloping , with integrated headset socket. Short frame geometry, 1.9 kg in size 57, durable frame, available in 8 sizes for users from 1.40 m to 2.00 m tall
Fork/suspension curved fork, 1⅛" aheadset pivot: filters road vibrations and very secure on impact. Weight 900 g
Drive train 8-speed MICROSHIFT lever. Very precise, very quick and robust design. Very comfortable ergonomics, levers feel comfortable in all types of hands. Very precise front and rear MICROSHIFT derailleur, enabling amazingly-smooth chain crossovers.
Brakes B'TWIN double brake pivot with pads mounted on brake shoes to facilitate replacement when worn down, without modifying the position of the brakes
Crankset / cassette Aluminium, triple 50/39/30 chainset that will work perfectly on all types of even terrain or inclines.
Note: Size 43 comes with a double chainset and 16 speeds.
Handlebar / stem / steering B'TWIN oversize compact handlebar stem, parts sized to the frame.Stem: Size Length
45 70 mm
48, 51 80 mm
54, 57 100 mm
60 110 mm
63 130 mm

Size Axle-axle width
45 380 mm
48, 51 400 mm
54, 57 420 mm
60, 63 440 mm
Wheels B'Twin double-walled aluminium with reinforced eyelets, 32 stainless spokes, front & rear quick release.
Two Wheel Sizes:
650 for frame sizes 43 - 45 - 48 - 51
700 for frame sizes 54 - 57 - 60 - 63
Tyres Hutchinson Equinox — an excellent tyre for fast-paced training rides. Weighing 290 grams, it is equipped with steel beads, bi-material rubber, and a tread that is harder than the sides mounted on a 66 TPI body.
KENDA tyres, sizes 43, 45, 48 and 51, for 650 wheels.
Saddle / seat post Btwin aluminium seat post, adjusted with Allen key, ergonomic Btwin saddle that is comfortable even on long rides
Pedals Platform pedals with toe-clips
Miscellaneous Weighs 10.9 kg in size 57 including pedals
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Technical Information
Information / Concept / Technology
Information / Concept / Technology
Stock advice keep tyres at a pressure of 5 bars to prevent them from becoming warped when stored long term.
Care instructions: Do not pressure clean. The chain and drive train should be protected by a film of oil in order to work effectively.
Guarantee : lifetime warranty for: frame, stem, handlebars and fixed fork. Details on