What happens to shimano brake pads when my bike sits in the basement for 6-8 weeks without riding? Help me, I'm baffled.
Backstory:
In the last 2 years, my wife have had over 7 bikes in our house each with either Shimano M98x or M78x brakes on them. They either came stock on a bike, or I bled them and installed them myself.
We'll ride a bike for couple months in the fall, brakes work great-- quiet, powerful, zero drama. put the bike in the basement for a couple months, pull it out in March to ride, and boom-- brakes squeal like crazy, less grabby, less power. Bikes are stored right side up, in various parts of my basement, leaning against a wall, etc.
This has been happening on various bikes. Various pad compounds, organic and metallic, finned and not finned. Genuine Shimano and truckerco pads.
Removing and sanding sometimes helps, but often only for a minute or two-- full power just doesn't return.
My solution is to buy cheap (truckerco) pads in bulk and replace when this happens.
My LBS has said the same thing about their XT equipped demo/rental bikes that sit for a month plus without use. What gives?
What the heck am I missing? Please share your well thought out hypothesis.
Backstory:
In the last 2 years, my wife have had over 7 bikes in our house each with either Shimano M98x or M78x brakes on them. They either came stock on a bike, or I bled them and installed them myself.
We'll ride a bike for couple months in the fall, brakes work great-- quiet, powerful, zero drama. put the bike in the basement for a couple months, pull it out in March to ride, and boom-- brakes squeal like crazy, less grabby, less power. Bikes are stored right side up, in various parts of my basement, leaning against a wall, etc.
This has been happening on various bikes. Various pad compounds, organic and metallic, finned and not finned. Genuine Shimano and truckerco pads.
Removing and sanding sometimes helps, but often only for a minute or two-- full power just doesn't return.
My solution is to buy cheap (truckerco) pads in bulk and replace when this happens.
My LBS has said the same thing about their XT equipped demo/rental bikes that sit for a month plus without use. What gives?
What the heck am I missing? Please share your well thought out hypothesis.