Training Data
A treadmill’s gradient is a percentage, not an angle in degrees
A 10% treadmill incline does not mean ten degrees. Learn how gradient is measured and how to record a hill session without misleading comparisons.
RUN · RIDE · KEEP LEARNING
Journal
Training Data
A heart-rate zone from a formula is an estimate, not a personal fitness test
Age-based heart-rate zones are broad guides. Learn how to use a training estimate without mistaking it for a personal maximum or a medical test.
Bicycle Maintenance
A bicycle thru-axle needs the frame’s thread as well as its diameter
A replacement bicycle thru-axle must match length, thread pitch and head shape as well as diameter. Record the specification before ordering.
Bicycle Maintenance
Refresh tubeless tyre sealant by the tyre and sealant makers’ instructions
Tubeless sealant does not last forever. Check compatibility, inspection intervals and the amount required for your tyre before topping up an unknown mixture.
Cycling Equipment
Bedding in new disc-brake pads is a separate job from fitting them
New disc-brake pads may need a manufacturer-specified bed-in procedure. Understand the transfer layer and ask what has been completed before the first ride.
Bicycle Care
Find a stiff chain link before adjusting every gear on the bicycle
A link that does not bend freely can create a repeating hesitation in a bicycle drivetrain. Observe it safely before changing several gear adjustments.
Cycling Mechanics
Count chainring and sprocket teeth to understand a bicycle gear ratio
Calculate a bicycle’s simple gear ratio from chainring and sprocket teeth, then understand why wheel size and drivetrain type still matter.
Running Practice
A negative split starts with a pace you can afford
Explore negative splits through a controlled, familiar run and compare the two halves without turning every session into a finish-line sprint.
Cycling Basics
Before fitting wider bicycle tyres, check the space around the whole wheel
A wider bicycle tyre must fit the rim, frame, fork and accessories. Check real dimensions and manufacturer limits before ordering.