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Bike Mechanic’s 1st Circle of Hell

3709 Views 41 Replies 8 Participants Last post by  Lombard
Bicycle tire Wood Art Line Tints and shades


This is my first time working with integrated handlebars. It’s a frickin’ nightmare and I haven’t even gotten to the hydraulic lines yet.

I have re-pulled the di2 wires at least 8 times trying to make it work. There’s no way the wireless unit let alone a cable junction is going to fit in the stem or bars. I believe I’m going to need to get longer wires and stuff the wireless unit in the left bar end and the junction A in the right….

CX Wrench and other mechs, I have an even greater appreciation for your skills and knowledge than ever before….
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Did your brakes come pre-bled or did you have to bleed them?
Since you have to run the lines inside the frame and bars and cut to the correct length they have to be bled. You might be able to cut them and not lose any mineral oil but it's always best to bleed them to be sure.
Since you have to run the lines inside the frame and bars and cut to the correct length they have to be bled. You might be able to cut them and not lose any mineral oil but it's always best to bleed them to be sure.
Seriously, I have seen listings on eBay for Di2 disc groupsets that come "pre-bled". Granted there is no way those hoses will just happen to be the right length even if you are installing them on a bike that has all external routing. And no, I don't see how you could possibly cut a hose and not let some air into the system.
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