BMX General > BMX Chat
I am currently working on (shorts)
Midschoolfool:
It's here. Mint too.
Midschoolfool:
OK so after spending my birthday gaming with my mates yesterday (I was 50 FFS) I decided to have a look at it.
Aaaaaand, it was broken ffs.
The arms were floppy, and should be under tension and sprung. So OK maybe he did that to stop it ruining the springs etc. Tension it up and it bound up both sides. Like, totally.
Here we go.
Now thankfully I have a lot of experience, and soon identified that the locking cones (the bits similar to the top of a 990) were a tiny bit worn inside (like literally a mil or two) and needed to stop before they lock the arms up.
So here is how it goes.
Take one arm off at a time.
Grease the bottom of the plate. Add teflon washer, grease top of teflon washer. Add second teflon washer, grease top of it. Add arm. Add grease, teflon washer. Grease the top of that one and add the last teflon washer (two under two over). Grease top of that, add spring. Grease the top end of the post, add metal washer. Grease that washer, add second washer. Then add cone, put thread lock on the bolt and tension it all up just like any other U brake.
And you will eventually end up with a pitbull that does what it is supposed to do.
Winning.
Midschoolfool:
Two at the correct size of 45mm, and the ISIS adapter shoulders and inserts for the ti BB.
Midschoolfool:
Two for two. Amazing.
Setting the plugs.
Shoulders and ti bolts.
And my Pitbull now has jaws.
Will fire the CNC up later and machine the teflon block.
Mikku:
Good job!! 👍🏼
And belated many happy returns!! Welcome to Club Fifties!! >:D
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