It is nearly always a good idea to lubricate the pistons...
...isn't what manufacturers say, but each to their own
the manufacturers live in a dream world that does not include regular dousings with salty water.
Hope may suggest using Si lube reactively but most Hope users have figured out that they need to use it proactively if they wish to avoid problems. If shimano hydraulic brakes were retro-fitted with a smear of silicone grease, there would be far fewer failures.
It is nearly always a good idea to lubricate the pistons...
...isn't what manufacturers say, but each to their own
the manufacturers live in a dream world that does not include regular dousings with salty water.
Hope may suggest using Si lube reactively but most Hope users have figured out that they need to use it proactively if they wish to avoid problems. If shimano hydraulic brakes were retro-fitted with a smear of silicone grease, there would be far fewer failures.
Hope is in Lancashire, the epi-centre of salted roads and lashing rain.
Anyway, each to their own
tim-b wrote: 5 Mar 2025, 5:07pm...Hope is in Lancashire, the epi-centre of salted roads and lashing rain....
hydraulic brakes lacking Silicone grease routinely fail, without geographic restriction.
I've provided you with sources for my comments from several of the largest hydraulic brake manufacturers, perhaps you can source any of your assertions made on this thread.
Your hydraulic brake manufacturing experience and engineering qualifications would be a start
Brucey wrote: 18 Mar 2025, 8:41pm
last time I checked, representatives from several leading manufacturers had asked for my advice. Make of that what you will.
The new calliper has been fitted and it's the best braking I've had in years. I would tend to agree with Brucey but I didn't want to start dismantling a new brake.
Shoogle wrote: 19 Mar 2025, 8:08pm
The new calliper has been fitted and it's the best braking I've had in years. I would tend to agree with Brucey but I didn't want to start dismantling a new brake.
you don't need to dismantle anything; just push the caliper pistons out as far as they would go with worn pads and add a little
Silicone grease.
