Is this a safe way to adjust the free stroke of disc brakes?

Since new, I have been bothered by the amount of travel on my Ultregra disc brakes. I have the reach adjusted around the middle of its range, but the travel still takes the levers with 1-2cm of the bars.

When they engage, they do so firmly, so I don’t think bleeding is an issue. Two LBS mechanics also say they are working fine. In this video, the guy forces some additional fluid into the brakes after they have been bleed. The mechanics say I run the risk of damaging my seals and to not do it. Thoughts? The link should skip over some other troubleshooting he suggests trying first.

That’s rubbish about damaging the seals.

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Great tip about drawing the syringe up to remove the air bubble. Thanks!

I would make sure you have adjusted the lever free stroke first.

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