Answers
A page per question, answered in the opening sentence
60 questions, each with a page to itself and an answer in the opening line instead of four paragraphs of throat-clearing. Where the true answer is that a published figure was measured under conditions you will not meet, the page says which conditions and stops there.
Choosing
Which shape of helmet answers the need at all, whether textile or leather suits the riding you do, and when the cheaper option in a family is the right one.
Approvals & standards
What an approval actually records, why a version and a date matter, what a P/J marking changes, and where a test stops describing an outcome.
Fit & sizing
Why a circumference is not a fit, what a head shape is, how cheek pad thickness changes a helmet, and how long to wear one before deciding.
Visors & vision
Why a visor fits one model and no other, what pin preparation is for, how an anti-fog insert works, and what a tint figure refers to.
Armour & protection
What a transmitted-force test measures, why level 2 is a trade-off and not a grade, and whether the pocket holds the armour over the joint.
Jackets & layers
Laminated against drop-liner membranes, what a base layer does, why cotton is the wrong answer, and what a connection zip has to match.
Gloves & boots
Where a palm actually contacts, why dexterity beats insulation, what EN 13634 publishes property by property, and which closure survives a winter.
Chain & final drive
Why a slack figure needs the position it was measured in, what pitch and link count are for, and which lubricant a sealed chain will tolerate.
Oil & servicing
Why a specification decides compatibility and a viscosity does not, what a wet clutch changes, and how a filter is identified at all.
Brakes & tyres
Sintered against organic as two behaviours, why a wet boiling point falls over time, how a tyre date code reads, and what cold pressure means.
Luggage & mounting
Why a plate is a separate purchase, what fitted width costs, which tanks a magnet holds on, and what vibration does to a phone.
Security & storage
What a published certification records, why a shackle diameter classifies nothing, what an anchor changes, and how to store a machine over winter.
Care & cleaning
What a cleaner must not touch, why a cover has to breathe, when a liner can be washed, and what a maintainer does that a charger does not.