# Building a bike

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This is a blog post to log the progress and process of building a bike. My first real bicycle had its frame bent while it was locked in Porter Square, and I’m going to revive it by putting the old parts on a new frame. This is the log of my first ground-up bike build.

# The parts

## Salvaged

• handlebars / bar-end shifters
• brakes
• cranks
• chain rings
• rear derailleur
• stem
• wheels
• cassette

## New

• Shimano 105 5700 front derailleur (34.9mm diameter, 2x10 speed)
• Shimano Ultegra 6701 10 speed chain
• Cinelli Vai seat post (31.6mm diameter)
• tires (28mm, TBD)

# The tools

I have a basic bike tool kit from Nashbar, and a torque wrench. For the tool kit, any brand will do, they seem to be mostly the same. Key tools to have are a set of hex wrenches, a larger hex for removing the cranks, a chain tool, and a set of wire cutters. The torque wrench is needed for the headset. Although it can be done by hand, there are torque values written on the stem that specify tightness.

# The process

## Stripping the old components

I started by breaking the chain on the old bike. It’s around 7 or 8 years old, and although it’s in good conditions (or seems like it), I’m taking the opportunity to get a new one. With the chain removed I can also remove the rear derailleur. I cut the cables and housings; these are old and are also due to be replaced.

Next up is the front derailleur. After successfully removing it, I discovered the clamp is the wrong size for the new frame and I’ll need to get one that fits. From here, I decide to completely dismantle the old bike and create a complete shopping list for this project. See The parts section for the shopping list.

Next is the saddle and seatpost. I realize the seatpost is also the wrong size. I will keep the old saddle, though, I love that thing.

The stem and handlebars prove to be a bit of a pain with old, cemented-on tape. However, they pop right off of the stem. I’ll be able to salvage the handlebars, stem, and steerer tube spacers. For style, I could even keep the Masi top-cap.

## Work for a bike shop

The frame came with a bottom bracket. Instead of buying an expensive tool, I went to my local hardware store and picked up a tap screw, a nut, and a couple of fender washers to make my on shoddy press. In the end, this failed by applying force to the bearings instead of the cups and destroying them. So, I add a bottom bracket to the shopping list. I called my favorite bike shop and they said they could install the bottom bracket (BB) for $20. Because I don’t forsee myself building bikes very often, it is worth it to pay for the service instead of the tool which could cost 3-6 times that amount. I’d rather them do it right then destroy another set of$30-50 bearings.

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