A touring/adventure frameset ideal for a varirty of builds.

Light Blue Sport

The Light Blue Darwin Touring/Adventure Steel Frame Set Galvanised

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When you buy the The Light Blue Darwin Touring/Adventure Steel Frame Set Galvanised, you will earn of rewards points to spend on your next purchase from us, anything online and instore.

Hassle free returns

Our policy lasts 30 days. If 30 days have gone by since your purchase, unfortunately we can’t offer you a refund or exchange.
To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging.
Several types of goods are exempt from being returned. Perishable goods such as food, flowers, newspapers or magazines cannot be returned. We also do not accept products that are intimate or sanitary goods, hazardous materials, or flammable liquids or gases.
Additional non-returnable items:
Gift cards
Downloadable software products
Some health and personal care items
To complete your return, we require a receipt or proof of purchase.
Please do not send your purchase back to the manufacturer.
There are certain situations where only partial refunds are granted: (if applicable)
Book with obvious signs of use
CD, DVD, VHS tape, software, video game, cassette tape, or vinyl record that has been opened.
Any item not in its original condition, is damaged or missing parts for reasons not due to our error.
Any item that is returned more than 30 days after delivery
Refunds (if applicable)
Once your return is received and inspected, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund.
If you are approved, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within a certain amount of days.
Late or missing refunds (if applicable)
If you haven’t received a refund yet, first check your bank account again. Then contact your credit card company, it may take some time before your refund is officially posted. Next contact your bank. There is often some processing time before a refund is posted.
If you’ve done all of this and you still have not received your refund yet, please contact us at sales@bicycledoctor.co.uk.
Sale items (if applicable)
Only regular priced items may be refunded, unfortunately sale items cannot be refunded.
Exchanges (if applicable)
We only replace items if they are defective or damaged. If you need to exchange it for the same item, send us an email at sales@bicycledoctor.co.uk and send your item to: 68-70 Dickenson Road, Manchester, M14 5HF, United Kingdom.
If the item was marked as a gift when purchased and shipped directly to you, you’ll receive a gift credit for the value of your return. Once the returned item is received, a gift certificate will be mailed to you.
If the item wasn’t marked as a gift when purchased, or the gift giver had the order shipped to themselves to give to you later, we will send a refund to the gift giver and he will find out about your return.
To return your product, you should mail your product to: 68-70 Dickenson Road, Manchester, M14 5HF, United Kingdom.
You will be responsible for paying for your own shipping costs for returning your item. Shipping costs are non-refundable. If you receive a refund, the cost of return shipping will be deducted from your refund.
Depending on where you live, the time it may take for your exchanged product to reach you, may vary.

The Light Blue Darwin Touring/Adventure Steel Frame Set Galvanised

Season : 2019

Brand : Light Blue Sport

Code : fmlb-darwin2Galvanised

Weight : 0KG

The darwin is a versatile, modern, tig welded, reynolds 725 steel tubed, touring/adventure frameset. Ideal for road or off road riding and can be built in to a variety of different build specifications.

Disc brake compatible and with variable size geometry, this frame also has ample clearance for up to 45c tyres (or 35c with narrow mudguards), in addition to a multitude of bosses to allow for almost every conceivable cage, carrier or cable set up. The darwin is robust, yet light and provides the comfort you would expect from a quality steel bicycle frame.

custom bi-oval down tube reduces lateral flex in the bottom bracket area for better power transmission.
Sloping top tube design allows for more seat post flex and thus more comfort.
Variable size geometry, provides predictable handling and a comfortable ride.
High specification reynolds 725 steel oval and b-oval double butted tubing delivers a great combination of lightweight, performance, durability and comfort.
Sliding ads-3 dropout system allows derailleur, single speed or hub geared options and provides chain/belt tensioning solution.
Lightweight, butted cr-mo d section straight fork blades for disc brakes.
Right hand seat stay splits to allow certified belt drive builds.
Multiple mudguard mount bosses
4 point fixing threaded m5 rack mounts on rear dropouts and seat stays.
Corrosion resistant black ed base coat.
Forward facing seat post slit, with lb single bolt seat alloy clamp included.
Optional mt forks available to take 700x2.25in tyre

Technical Information
  • MaterialReynolds 725 Main Tubes
  • ForkLightweight D section Cr-mo straight blade forks
  • Steerer1 1/8"
  • Seatpost27.2mm
  • Seat ClampCollar
  • Front DerailleurBand on 28.6mm
  • BB Shell68mm English Thread
  • Rear spacing135mm
  • ColourZinc Galvanized or Flat Black
  • Frame Weight2100g (4.6lb) M frame only
  • Fork Weight1050g (2.3lb) Uncut
Sizing Information
Darwin-17 image
  Small Small/Medium Medium Medium/Large Large  
Seat Tube (ST) 500 520 535 550 570
Horizontal Top Tube (ETT) 541 555 570 585 600
Actual Top Tube C2C (TT) 521 534 548 564 575
Chainstay (CS) 445 445 445 445 445
Adjustable to (with ADS3) 463 463 463 463 463
Bottom Bracket Height/Drop (BBH) -72 -72 -72 -72 -72
Seat angle (SA) 73.5° 73.5° 73.5° 73.5° 73.5°
Headtube (HT) 150 170 180 190 210
Headtube Angle (HA) 70° 70.5° 71° 71.5° 72°
Stack 582 603 615 626 647
Reach 368 376 388 400 408
Wheelbase (WB) 1047 1057 1067 1077 1075
Max Tyre (without mudguards) 45c 45c 45c 45c 45c
Max Tyre (with mudguards) 38c 38c 38c 38c 38c


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Estimated Delivery Dates

Estimated Delivery Dates are given on Pre-Order and Pre-Launch products. They are for indication purposes only and can change at any time without notice.

The dates we provide are based on indications given by our suppliers. Whenever we get updated information from our suppliers we will endeavour to update the Estimated Delivery Dates provided on product pages.