Aluminium, carbon fork, 27 speeds

All Bikes - Fit 500 Flat Bar Road Bike B'TWIN
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B'TWIN Fit 500 Flat Bar Road Bike

The b'Twin Fit 500 Flat Bar Road Bike is perfect for commuting to work by bike, cycling around town or in the countryside. Sharing the same frame as the famous b'Twin Triban road bike, it offers superb value and quality. Shimano sora drivetrain and hutchinson equinox tyres. The frame is rear panier rack ready.

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Reference : 8239798

4.3 / 5

20 reviews

17 people recommend this product

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Great bike apart from the wheels


  (United Kingdom)

4 5

Love the bike but the wheels are totally inadequate for daily commuting. The tyres are no good, ny back wheel lasted 390 miles before it threw a spoke - not bothering going to have it mended i'm throwing it in the bin with the rest of the junk and have a couple of new ones built.

Apart from that its a great machine and I love it - just soooo badly let down by its wheels and tyres.

Good value for money

Light, 27 gears, looks good

Gears take a bit of setting up. Tyres are useless.


  (United Kingdom)

+60 years old    Man

3 5

used for 3 to 6 months I have had this bike for 5 months now. I like the frame and the basic set up. However the gears are very difficult to set up, and even now, after two visits to my local bike shop, I still have to be careful that it doesn't shed the chain on the big front cog.
The tyres arent much good for normal riding. I was getting punctures a couple of times a week. I changed the tyres to Michelin Lithions and since then (2 months) no punctures at all.
I have also changed the saddle (too hard) and the brake levers to Avid. So for a little extra I now have a bike that's a joy to ride.
Even factoring in these extras it is still great value for money for a basic road bike.

nice bike.

great bike

bad service in store.


  (United Kingdom)

30-39 years old    Man

1 5

used for 2 to 8 weeks This is the third bike I have purchased from decahtlon.
Their bikes are great this bike is great. Surrey Quays is quite a trip for me. Each time they have put a bike together there has always been an issue. I will make this the last bike i buy from here.
The wheel is making a rubbing noise. the chain catches on the cage so yet another trip to surrey quays to get it fixed.
Will not be using decathlon in future life is to short and I dont want to spend my spare time trying to get bikes fixed.

Response of the brand

Dear Sir,
I fully understand your frustration with your new bike.  It's normal to expect it to run smoothly.
It is not totally unexpected to read that the gears rub a little as the cables (gear and brakes) can stretch a little in the first few weeks.  This is why we and all cycle retailers offer a free check-up anytime within the first 3 months.
The wheel however is another issue and should not happen so soon.
I will forward your concerns to the stores concerned.
Peter Lazarus UK Cycling Market Manager DECATHLON

Mark did not find this review helpful

Great Bike if you don't want to turn corners

Lightweight, fast,

Gear movement could be smoother, poor design


  (United Kingdom)

30-39 years old    Man

3 5

used for 1 week or less Aesthetically pleasing, very lightweight and fantastic to find carbon forks at this price.
Great ride on a flat straight surface, take this bike round a corner and you're in trouble.
This bike is so poorly designed it's not actually fit for purpose.
Sadly, that's the only complaint - other than that its perfect.
I almost came off the bike going round my first corner due to my toes hitting the wheel. A few corners later amazingly it was the toe clips that hit the wheel!
I spoke to the chap in the store to see if there was a solution and amazingly he said there was nothing they could do about it. To be fair to the chap, he was very polite and immediately offered a refund but here's the quandary...I really like the bike, it performs great apart from this obvious design flaw which makes it dangerous and now that I think of potentially deadly - imagine cycling along a busy road, take a corner at speed, your foot gets caught and next your splashed across the morning papers - cyclist dead.
What really amazed me is that the chap in store suggested that all 'road bikes' are designed to go in a straight line and his bike does the same thing. His answer to the problem should I wish to keep it (and again I must remind you, he did offer a full refund) was to purchase cleats.
Such a shame that this bike which gets amazing reviews can do the simplest of tasks - turn.
Very dissatisfied and now considering my options.

Response of the brand

Dear Sir,
Thank you for your comments regarding your toe touching the front wheel when turning tightly at slow speeds. It is called toe overlap.
You may be surprised to hear that this is not uncommon with road bikes in particular if you don't use cleats.  You can find many articles about this on the web.
For you to turn the handlebars enough to catch your outer foot at speed is impossible as your speed will not allow you to turn sharp enough. If you are turning at speed your body lean should also mean that in the case of turning left, your right leg should be fully extended and your left knee raised to avoid catching your pedals on the ground/toe in wheel, legs at 6 and 12 o clock if you like (and vice versa if you turn right).  You will potentially only encounter overlap on slow tight turns.  Make sure you don't ride with your feet too far forward and keep the ball of your foot directly above the pedal axle which will also give you much more efficient pedaling action.  If you feel your feet moving forward your saddle may also be a little low.  See if this is the case.
I hope this helps put your mind at ease and with some practice and technique modifications, you will hopefully really begin to enjoy this bike.
Peter Lazarus UK Market Manager DECATHLON

B'Twin 500 Flat Bar

Light, Value for Money, Easy to ride, Looks Great



  (United Kingdom)

40-49 years old    Man

5 5

used for 2 to 8 weeks I have started riding again after a 15 year break and wanted to get a road bike for a casual user. shopped around but this was the best for my budget and so glad i bought it. The guys at Decathlon set the bike up and recommended the frame size. In my opinion as a 45 year old man this bike is light and all the components work well together. I feel this bike would be good for beginners to semi serious riders. I did commute in my younger years and i wish i had this bike when i did as the journey time would have been cut down. I have bought a adjustable stem for the handle bar as its more comfortable and with my £5 voucher which Decathlon gave me it ended up being a £10 upgrade. Now for the serious stuff. The ride is smooth and very stable ,gear changing is accurate and fast. I have had no issues with the tyres and i have been out on a damp cold day and the bike gave me lots of confidence to hit speeds. The bike also looks good and not out of place with the high spec glossy expensive bikes i find riding round Epping Forest roads. The only tip i would give is that if you feel the bike gives you a posture which is uncomfortable then try a adjustable stem for the handle bar as that has done the trick for me.

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Technical Information
Information / Concept / Technology
Frame 6061 aluminium sloping T6 with integrated headset socket. Short frame geometry, 1.9 kg in size 57, durable frame, available in 6 sizes for users from 1.60m to 2.00m tall.
Fork/suspension carbon blade, aluminium pivot, 1⅛" aheadset; combines strength, low weight and precision.
Drive train Shifters: Shimano Deore Trigger shifters for easy, fast and precise gear changing. 27
perfectly geared speeds to help cyclists of all levels find the right rhythm without too much effort. Front derailleur: Shimano SORA. Rear derailleur: Shimano SORA
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
Handlebar / stem / steering BTWIN MTB Flat 500 to 540 mm handlebar adapted to the size of the bike. Elevated stem: 10° (90 to 120 mm) for a more elevated position.
Wheels B'Twin double-walled aluminium with reinforcement rings, 32 rustproof spokes, front rear quick release
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 66TPI body.
Saddle / seat post B'Twin aluminium seat post, one Allen screw adjustment and a very comfortable Selle Royale saddle that is great for long rides.
Pedals Platform pedals with toe-clips
Miscellaneous 10.5 kg in size 57 without the pedals
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Guarantee : lifetime warranty for the the frame, stem and handlebar on this bike. Details on