How To Build A Bike From Scratch: The Guide To DIY

So what if you want an excellent bike with the components you desire? Well, you can certainly make it happen if you can build the bike yourself. Building a bike from scratch and making a bike at your station could be a bit tricky, but it is also not impossible if you follow some simple steps and have functional understandings of bike parts. Let us dive into how to build a quality bike from scratch.

To ease your task, we are going to give our guidance on how to build a bike on your own. Once again, DIY-ing a bike does not mean you could save a lot of cash, but this would surely offer you an exhilarating experience of building a bike with the parts you like.

How To Build A Bike From Scratch

The Guide To Building A Bike From Scratch

Things you need

"frame"How To Build A Bike From Scratch: The Guide To DIY


"Fork"How To Build A Bike From Scratch: The Guide To DIY




"Shifters"How To Build A Bike From Scratch: The Guide To DIY


"Crank"How To Build A Bike From Scratch: The Guide To DIY


"Brake and brake levers"How To Build A Bike From Scratch: The Guide To DIY

Brake and brake levers

  • Frame 
  • Fork
  • Headset
  • Front and rare derailleur( front one is optional though)
  • Shifters
  • Brake and brake levers
  • Cranks
  • Bottom bracket 
  • Cables - Derailleur cables
                  Brakes cables
                  Derailleur housing
                  Brake housing      
  • Wheels
  • Cassette
  • chain
  • Seat post
  • Saddle
  • Pedals
  • Clamp for seat
  • Brake hangers for both front and rear
  • Handlebars
  • Stem
  • Tires       

Tools needed

Allen keys"How To Build A Bike From Scratch: The Guide To DIY

Allen keys

"Chain tols"How To Build A Bike From Scratch: The Guide To DIY

Chain tools

"Tools for bottom bracket"How To Build A Bike From Scratch: The Guide To DIY

Tools for bottom bracket

"Grease" How To Build A Bike From Scratch: The Guide To DIY


"PVC cutter"How To Build A Bike From Scratch: The Guide To DIY


"wire cutter"How To Build A Bike From Scratch: The Guide To DIY

Cutters for wires

  • Allen keys
  • Chain tools
  • Grease
  • Cutters for wires
  • Hackshaw
  • Wrench pedal
  • Adjustable wrench
  • Nuts and bolts
  • Tools for bottom bracket
  • Screw driver

Selecting the frame

Start with selecting a frame that supports your body dimensions. Choose the materials you prefer. Aluminum and carbon fiber frames give you a lightweight structure while the steel frame is more robust and suitable for customizing.

Adjust Seatpost

Insert the seat post inside the seat tube and secure it with a clamp. Before that, make sure to check in with the diameter of the seat post and seat tube. They should fit each other.

Support of offset

The offset and seat post allow the saddle to be set on a place. The offset is a little high in length for an incline position of the seat. Also, keep in mind to match the saddle's rails to the mounting system of the seat post.

"Support of offset"How To Build A Bike From Scratch: The Guide To DI

Working with the head tube and fork

The fork either rigid or suspension type should be slid inside the head tube. In this process, you need to get the length and diameter of the headtube from inside. Also, look for if the headtube is tapered or straight and get the fork accordingly.

To place the fork, you need bearings on both sides of the headtube, which are placed in cups. For a tapered head tube, the steering tube introduced with the fork should be tapered. The steering part, if bought new, should be cut down to your desired size. The steering tube should be equal to the headtube length, spacers, and stem in total. The geometry of the fork is also crucial as it needs to compliment your bike frame.

Adjusting the wheels

Select a wheel size that fits perfectly with the fork maintaining tire clearance. Again, pick the tires according to the purpose of your ride. You also need to make sure you make a match between the dropouts and the axles.

Adjusting the wheels"How To Build A Bike From Scratch: The Guide To DIY

You may choose to have the option of quick release, which is located amidst the dropouts and the axles of the wheels. To get a clear idea of the measurement, calculate the gap between the dropouts, and buy wheels accordingly.

Deciding on Brakes

Depending on the brake type you are going to use, you have to choose a fork with mounts. So look for what kind of mounts the fork has.

Getting the bottom bracket shell ready

You need to insert the crankset inside the bottom bracket shell with the help of right size bearings. The length of the bottom bracket and the threading or press-in should be taken into consideration. There will be an axle to hold the bearings. Check the thread you have in the shell and set the bearing of the drive side counter-clockwise and on the non-drive side clockwise.

Setting the crankset

Crankset is usually sold with the bearings and axle. If not, we have to make sure that the spindle of the crankset's diameter matches the hole of the bearings. The length of the arm of the crankset holding the paddle, should be picked according to bike type. A quality mountain bike's crankset arms tend to be longer than the road bike. Attach the paddles.

Attach the rear wheels

The factors to keep in mind are, if the wheel would support the length of the frame, the tire clearance, what type of rear axle would it accept. Knowing the width of the axle and if it is threaded or thru-axle, you have to adjust.

Attaching Brakes

For different types of brake, the mounts would be different. To mount the brake, you need to know what kind of adapter it has. Also, remember to look for if it is going to support the frame's eyelets or the fork.

Attaching Brakes

Connect the fork to the cockpit

Firstly, we need to insert a stem that supports the fork and holds the handlebar. To fit the handlebar nicely, we have to know the diameter of the center of the handlebar precisely. Handlebars and stem come in different shapes and lengths according to bike type. Cushion the handlebar with your preferred grips. Finally, Place the brake and shift levers in the handlebar.

Setting up drivetrain

First, you need to consider the number of sprockets or the number of speeds of cogs in the cassette. This number should be compatible with the chain, shifter, derailleur, and chain wheels. Shifters also must match with the derailleur. You will also get housing to house the cables for the shifters and brakes. Keep in mind that the cables and housing are different in both shifters and brakes.

Setting up drivetrain

Mounting derailleur

You must know the specific size of derailleur since you need to fit them into the frame. Do look for the mounting system your frame offer and if it can hold the front derailleur. For some, a clamp may also be necessary. For the rare derailleur, you may find a derailleur hanger for mounting. Similar to the other, you also need to know the size and mounting system before getting the rear derailleur for your bike.

In the end

We have brought the basics on how to build a bike. Anyone who is a beginner in DIY-ing a bike could follow the instructions easily. It would help if you always kept in mind that bike parts should not be bought in haste. You need to consider the size, shape, mounting system, diameter, and be very specific with information.  There are many online and offline based shops. Do ask them and let them know in detail so that you could get their suggestions.

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