The Bike Touring News store now has Phil Wood bottom brackets for your Long Haul Trucker (or even brand x touring bikes!) builds. Phil Wood has gained a reputation over the last 40 years or so for being the standard in durable, strong and serviceable bottom brackets. Here’s a short pictorial guide:
The Phil wood bottom bracket and retaining rings. The rings come with thread lock and they are required for installation.
On a new frame the bottom bracket shell threads should be chased before installing the bottom bracket. Phil Wood retaining rings have no outer flange to rest against the the outer surface of the shell, so the paint does not need to be cleaned off nor does the shell need to be faced.
This is a thread chasing tool for bottom brackets. A person could probably get away without this step on a new frame.
The drive side retaining ring threads in to the shell, just partway to start.
The Phil Wood bottom bracket tool is specifically designed for the retaining rings and is required for installation.
Two bottom bracket tools, one on each side makes the job much easier. The bottom bracket is slipped in from the non-drive side before the non-drive retaining cup is threaded in.
Here is a pair of Phil bottom bracket tools. Using two makes final adjustment much, much easier.
On of the unique and clever benefits of the Phil Wood bottom bracket design is the ability to move the cartridge left or right up to 5mm in order to get the chain line perfectly dialed. Here the bottom bracket is more or less centered since there is about the same amount of thread left exposed on the cups on both sides of the shell.
The proper length of bottom bracket spindle will be a function of the shape of the crank, mostly. Too short a spindle and the chainrings can hit the frame, too long and the chainline could be awkward and the Q-factor will be increased. This is a 68×108 bottom bracket with a Sugino XD2-500T triple crank set.
New (2013 or so) to the Phil Wood product lineup is the BB Cup Mudguards designed to friction fit into the retaining cups and to keep the splines free from muck buildup. On this 108mm bottom bracket the bottom of the spindle taper doesn’t clear the mud guard and when the crank is tightened onto the spindle it binds. Clearly this idea needs some work. Phil Wood & Co. has been selling bottom brackets without mudguards for 4 decades though so they are not a requirement.