the 'there's no such thing as a stupid question' bike maintenance thread

Before going the bleeding route I’d pop the pads out and make sure the pistons aren’t just stuck.

Quick spray of brake cleaner and stick a tyre lever or pad separator in between and apply the brake to see if they move at all

My left pedal came off when out this morning, came clean off the screw (bolt?) attaching it to the crank, rather than the whole pedal itself. Had the pedals for about 3 years with no issues, last had them off about 2 years ago. Any idea what could have caused it, other than regular use/wear and tear? The rubber washer thing inside was worn and the threading was worn as well, couldnt get it screwed back on so limped home with one pedal.

I was lucky that i was seated on a small incline when it came off, so want going fast and the foot just slipped off. If i was standing or at speed id shudder to think what would have happened

This does feel like a stupid question - does anyone know what type of rotor fits this wheelset?

It is a Fulcrum Racing 6 DB , there are no rivets on the inside, just on the outside as you see in the photo.

I ordered a set of Shimano RT54s but they were internal lockring, so sent them back and bought external. The external ones use a different tool to fit (bb tool vs. cassette lockring tool), but they still seemed to be designed for rivets on the inside rather than outside of the hub. I've also tried a 6-bolt adapter and that doesn't fit either.

Any ideas before I go mad? They are for a bike that I've had almost ready for a month, ordered from Germany each time so a bit of wait and these are the last things I need to get it on the road.

That looks knackered to me. This popped up on a search - it looks like it's got both the cup shown, and bearings, plus other bits. UK site thought so Brexit shenanigans probably https://www.westbrookcycles.co.uk/formula_dc22_rear_hub_axle_kit-6127

Back pedaling would have no impact on the pedals. It's probably down to wear and tear, Amy chance they were making a creaking or crackling noise before failing?

There was a bit of cracking alright, not persistant but the odd time, thought it was the cleats. A few more photos, the p3dal doesnt seem to inseet fully onto the spindle anymore either, like its too short. Will take it into the shop tmoro, get a new one

No, in general it wouldn't, but I thought if the spindle was seized, then the pedal might be rotating on the threads, as such.

I have the same free-hub, when I was researching recently I found out that the Formula DC-22 is just a rebadged SRAM 406, that might open up more options.