Shop sports shoes, sports gear & sports equipment
Home Delivery from £1*. Free Click & Collect
errorSearchInfoBulle messageErrorEmptySearchZone
  • DecathlonCompletionCategoriesTitle
  • DecathlonCompletionTopSearchesTitle

A hybrid bike, pure and simple!

All Bikes Cycling - Original 300 Hybrid Bike - White B'TWIN - Bikes
All Bikes

B'TWIN Original 300 Hybrid Bike - White

occasional recreational rides and cycling on roads and trails. BTWIN revisits the classics: Original 3+ comes fitted with mudguard, adjustable stem and machined and painted rims.

To view our full range visit our hybrid and touring bikes category.


Please select a size

Please select a size


until £159.99 - %

From £159.99**

DecathlonDeeeTaxMentionAfterPrice /

Price in store £0.00 £159.99 **

Reserve in store

From To

** From To

* Sales from to Until end of stock
** Sales from to Until end of stock

From and limited stock

* Sales price at

From and limited stock

* Sales price at

* From and limited stock
** From and limited stock
Add to my wish list
Product already added
Free delivery with Click & Collect
From : 08/02/2016 with this item
Reference : 8245553

Delivery Info: When buying a bike online, pedals are not fitted and the stem/bars are not adjusted. View this video to see how to correctly set up your bike at home.

Our customers pictures

Product benefits

    • Versatility
    • 21 gears for all gradients. Versatile tyres for roads and trails.
    • Optimised posture
    • Height- and tilt-adjustable stem. Unisex-geometry lowered frame.
    • Non-messy
    • Fitted with a mudguard with v-stays providing good coverage.
    • Brake control
    • Single-wall, machined rims provide efficient and progressive braking.
    • Lifetime warranty
    • B’TWIN offers a lifetime warranty on the frame, stem, handlebars and rigid fork.
  1. Guarantee : lifetime warranty for the frame, stem, handlebars and rigid fork. Details on

Product information

M (1.55 - 1.72 m) / L (1.73 - 1.85 m)
15.25 kg in size M
White and brown
Maximum load
100 kg

your reviews

3.8 / 5

13 reviews

9 people recommend this product

Write a review
Sort by :

Great teenage girls bike

The look!, easy gears, comfortable saddle

Heavy to put on bike rack


  (United Kingdom)

50-59 years old    Man

5 5

used for 7 to 12 months Great bike for my 12 year old girl (I know but teenagers start early!). Looks great and good quality parts for price. A little heavy for lifting onto bike rack is only downside.

Lasted less than a week

It's price

The seat collapsed, the bracket failed, gears bad!


  (United Kingdom)

30-39 years old    Man

1 5

used for 1 week or less I was tempted by the price of this bike, it seemed solid enough but sadly a known fault in the seat assembly caused the seat to tip backwards throwing the rider off. It was returned for a refund

Response of the brand

Dear Sir,
I have been in contact with you directly on this matter.  I'm sorry that this happened to your bike.  It is an exceptionally rare occurrence.
We have many stages to ensure that the quality of our products is a priority and the product managers, production teams and quality control departments at b'Twin monitor each return/customer comment/store feedback/workshop repairs closely to spot any worrying trends.
Our Belfast store has reported this isolated issue back to b'Twin as an added precaution using our internal quality control software.
Peter Lazarus UK Cycling Market Manager DECATHLON

gtwin 300

ease of gear shifting,comfortable smooth ride

seat kept moving


  (United Kingdom)


4 5

used for 2 to 8 weeks altogether I really like the bike once I got the seat position well tightened,

Good Bike but Problems with Saddle

lightweight easy to to ride

unconfortable saddle


  (United Kingdom)

20-29 years old    Woman

3 5

used for 1 week or less Hi
I have had this bike for about 2 weeks and only been cycling for 1. I was out on the bike this morning going to work and the saddle suddenly slipped from horizontal to 45 degrees and was extremely loose. I didn't have anything with me to tighten this so am not sure how loose it actually is. Any ideas on what the issue is ? and how easily this can be fixed and is this a common issue?

Response of the brand

I'm sorry to read that the saddle came loose.  It can be tightened using two spanners or adjustable spanners and is a relatively simple job.  If after tightening, the saddle still moves, we may need to send you a new one as a replacement.  If this is the case, please contact our Loyalty team who will be more than happy to help:
Peter Lazarus UK Cycling Market Manager DECATHLON

Mixed feelings about this bike

Generally a nice bike

Gears don't work


  (United Kingdom)

30-39 years old    Woman

3 5

used for 1 week or less Bought the bike intending to use to get to/from work but the gears don't work properly (the do not select). Will be taking it back but now have no confidence that the bike is reliable enough for its intended purpose. When I return to the store, I may look at exchanging for a different bike as I have used my husbands Triban 5 and it seems to be a much better bike overall for what I need

Technical Information

  • 1

    Frame Hi-Ten steel frame with lowered geometry for a sturdy, comfortable bike that's easy to mount. Lifetime warranty!

  • 2

    Fork Hi-Ten steel for greater solidity. Lifetime warranty!

  • 3

    Drive train Indexed, 21-speed, speed change with SRAM Comp grip shifters. This versatile and sturdy drive train is suited to most gradients.
    SHIMANO TZ21 7-speed cassette.
    Rust-proof SRAM chain.
    Front derailleur: SHIMANO TZ31
    Rear derailleur: SRAM 3.0
    Distance travelled in metres per turn of the crank (26" wheels): 1.50 m - 6.01 m
    Distance travelled in metres per turn of the crank (28" wheels): 1.76 m - 7.02 m
    Chainrings: 48 / 38 / 28
    Cogs: 14 / 28

  • 4

    Brakes Front/rear brakes with steel V-brake callipers. Aluminium brake levers. Efficient, flexible and progressive braking.

  • 5

    Handlebars / stem / steering Semi-raised steel handlebars. Height and tilt adjustable stem. Semi-raised position suited for casual bicycle rides and more athletic outings. You can adjust the stem to ensure good posture.

  • 6

    Saddle / seat post Selle Royale foam saddle. Quick-release saddle clamp; steel seat post. The unisex saddle is soft, comfortable and waterproof. The saddle can be quickly adjusted, no tools required.
    Seat post diameter: 26 mm
    Seat clamp diameter: 29 mm

  • 7

    Wheels Single-wall, machined, anodised aluminium rims.
    Machined rims provide efficient, progressive and silent braking.
    Quick-release steel front hub. The quick-release system makes it easy to remove the front wheel to carry your bike.
    Bolt-on rear wheel axle.
    The rims are painted in the same colour as the frame (white)

  • 8

    Tyres New B'TWIN gumwall tyres: very durable versatile tyres for road and trail.
    Dimensions: M 26 x 1.75, L 700 x 1.75.

  • 9

    Crankset Versatile one-piece plastic pedals.

  • 10

    Accessories / equipment screw-on battery powered lights. Mudguard with V-shaped stays.
    Compatible with the B'CLIP 26"/28" pannier rack (item ref. 8242271)

  • 11

    Dimensions Saddle - handlebar distance in size M: 630 mm - 660 mm
    Saddle - handlebar distance in size L: 660 mm - 690 mm
    Saddle - pedal distance in size M: 680 mm - 890 mm
    Saddle - pedal distance in size L: 760 mm - 980 mm

Information / Concept / Technology

Restricted use :

Not designed for mountain biking.

Stock advice

Store in a dry place.

Care instructions:

Regularly clean and lubricate the drive train.

Other Decathlon customers have bought

Don't forget!