Originally Posted by akexpress

You don’t need to use zip ties. Jaquire makes adhesive hose guides. You do use zip ties in them but inconspicuous like on mtn bikes. We used them on our Calfee when the Shimano brakes first came out. You will need the new levers and a custom long rear hose. There are a variety of options for the hose. Shimano and jag wire are readily available. The rear brake is kinda of a pain to bleed. If it feels soft at the lever you still have air in it. We have been running the Di2 hydraulics since they first came out and would never go back.