Hi I'm new to this bike building business and have a few questions...
1). Does anyone know how to take off this crank? It's hollow inside so my regular crank puller won't work:
2). If I have regular 1 1/8" cups on either side of my head tube, and bearings such as the pic below, is it possible to buy a sealed headset instead? What types are compatible with these cups (names such as integrated etc)?
Picture, Picture of cups
3). My pedals are moving side to side, there are gaps in the main axles, is this normal or should I add washers, and how do I pull the axles out to do this?
Notice the gap on the left side
4). The distance between the rear dropouts is 150mm, is this normal spacing for a mountain bike because all my other bikes are around 15mm shorter? Can I use ordinary wheels/hubs or do I need special type? Also can I tighten it until the rear triangle gets pulled in by tension or should I use washers to prevent this from happening?