I am trying to learn more about bike mechanics as I reassemble it, with the help of my bike mechanic beau.
I never got on with the gears on the bike before the respray, so I have decided to turn the bike into a single speed machine.
This Instructable covers the following:
- Installing bottom brackets (the cylindrical shaped part that goes through the frame and allows the cranks to spin.)
- Installing the cranks (the bits between the bottom bracket and the pedals.)
- Installing pedals (hope you know what pedals are)
- Installing a single speed conversion kit.
- 5mm Allen key
- 8mm Allen key
- Flat bladed screwdriver or chain ring bolt tool
- Bottom bracket spline tool
- Large adjustable spanner
- Pedal spanner
- Chain tool
- Cassette lock ring tool
- Bike grease
Step 1: Assemble your crank and chain ring.
As we're converting to single speed, we only need a single chain ring at the front.
We found a double crank set from an old racer and removed the largest chain ring. (Sorry- no photo of the double rings.)
To undo the chain ring bolts, you need a 5mm Allen key and another tool to hold the back of the chain ring bolt. If you haven't got a chain ring bolt tool, you can use a large flat bladed screw driver.
As we removed the large chain ring we had to space out the chain ring bolts with washers so they would tighten properly. You can just see the washers in the third photograph.
We also moved the chain ring to the outside of the crank spider as we knew it would help the chain line in the long run.