Anyone know anything about disc brakes?

found this! https://www.aliexpress.com/item/32749432485.html?spm=a2g0o.productlist.0.0.4770a985cXtmxR&algo_pvid=6b7dd4a2-7f9c-4466-9539-837ddeebc6db&algo_expid=6b7dd4a2-7f9c-4466-9539-837ddeebc6db-10&btsid=e670d41d-9b96-4a47-9bbe-530ff333bafe&ws_ab_test=searchweb0_0,searchweb201602_10,searchweb201603_53

But otherwise bb7 or spykes I guess.

Think I got some BB7's if you want them and don't go the hydro route. Not sure why you wouldn't got hacked hydro.

What you building anyway?

edit: Snotty had it

What you building anyway?

a commuter inbred 26" with a bafang motor

Noice. What setup are you looking to run? You gotta thread this. LFGSS evolution into E bikes.

Bafang BBSHD 500w (or even 250w) with a 48v batt and the black and white display.

The rest of the build would be pretty CommuterSexual® .. Marathon supreme 2" maybe some SRAM X3 or X4 1x 7 or 8 speed, some cheap wheels @TvH is selling me, brompton saddle, as cheap cockpit as I can get (Humper, kalloy), SKS 60mm mudguards.

It will be so ugly that I may lose friends.

It ain't about losing friends, it's about gaining them 'gram points!

This is looking pretty pimp. Will be interested to see how the motor stacks up considering Bafang is eating up everyone.
Put a basket on it and everyone will agree it's the future.

I have left the game, here is my resignation letter

1 Attachment

And here we were thinking @dammit had freaky feet...

Heh, I've changed my rear rotor on the Stayer after well over 10,000 miles. Admittedly rear sees less use than front, and it was rather nicely grooved at this point (and warped too). No idea how old the current front is ¯\_(ツ)_/¯

#csb

My front rotor keeps on rubbing. Couldn't fix it by loosening the bolts and retightening but the rotor was not true anymore so replaced that. The brake pads were almost gone, so replaced that. Did the retightening again and everything was fine. Up until I have to brake hard/am climbing. Then it's back to the rubbing. Sometimes it stops rubbing during the ride, if not I adjust it at home but it's getting on my nerves. The brakes are BR-RS785. This is about where my knowledge about disc brakes end. Do I need to do something with the pistons? Do I need to bleed them?

If you didn't spread the pistons when installing new pads then do it now.

Right now!

Or whenever.

Convinced that no LBSs near me understand how HY/RDs work. Had several cases of the rear brake almost failing on me, when I've repeatedly taken it to various places to explain the problem (basically lots of travel when pressing the lever, it only "bites" very late and the pistons barely move). Doesn't help that the diagrams on TRP's instructions are barely visible.

Whats the lever?

Sounds like too much cable tension, the actuation arm on the caliper needs to return fully to allow fluid from the reservoir through to account for pad wear. Back off the barrel adjuster so that the little lock nut thing can be screwed into the arm, if that's not enough undo the cable, then move the arm on/off a bunch of times so pistons self adjust. When hooking the cable back up or adjusting barrel adjuster you want to do it so the little locknut thing can still be engaged and you're just aiming to remove and slack from the cable, no more.

105 5800

this sounds exactly the problem - thanks. hoping i can work out which bits are which!

:D I know what to do tonight.

I had the same issue with the exact same lever. I replaced the outer with trp compressionless outer and a short arm lever from JJBP as per this video. Now spot on
https://youtu.be/JoNIqoguOKs

Maybe you have sticky pistons. See if one of the pistons moves less than the other and/or sticks out more. You can clean your pistons by

• removing the pads
  
• getting the pistons as far out as is comfortable (take care that they’re both extending by an equal amount; that will not happen by itself if one is sticky; in which case you can block the one that’s getting out more until the other one catches up)
  
• cleaning the sides of the pistons with cotton earbuds and generous amounts of acetone (that’s what I use, maybe someone will suggest something better)
  
  

Then push the pistons back in and put back the pads and wheel.

cleaning the sides of the pistons with cotton earbuds and generous amounts of acetone (that’s what I use, maybe someone will suggest something better)

After cleaning I'd dab the sides of the piston in a small amount of whatever brake fluid the brake uses.

Push the pistons in as far as they will go before and after this procedure. Wipe up any fluid the piston displaces.

If you pop one out...you'll ruin your day :) If in doubt, use a bleed block.

Why is my front trp spyre so loud in the rain? My back one is silent and grabs better. I set them up the same way.

What pads?