Bicycles Stack Exchange is a question and answer site for people who build and repair bicycles, people who train cycling, or commute on bicycles. It only takes a minute to sign up.
Sign up to join this community
Does anybody know what the bumpy part near the threads of this pedal are for? They look like they might fit a special wrench, but I can't find any that would fit.
I feel like I must be missing something, and that I've seen these bumps around, but never understood their purpose.
The 'official' tool that engages with that bumpy collar is the Shimano TL-PD-40 bearing shaft removal tool. It's a plastic tool designed to be used with a larger wrench, or a vice. Here's a pic: TL-PD-40
If you're interested in servicing your pedals using this tool and others, here's a how-to from Park Tool: http://www.parktool.com/blog/repair-help/spd-pedal-overhaul
The bumpy part unscrews. That's how you get to the bearings, I believe. They make special tools that fit over it - if you can't find that, and you don't care about the bumpy part looking pretty, you can just use pliers.
