The ChainLog blog

Maintenance, wear, resale. Practical guides to ride the same bike longer.

MaintenanceTutorialLatest

Bike cables and housing: when to replace and how to feel it coming

Sluggish shifting, spongy brakes, a frayed cable: the signs and the benchmarks

·7 min
Buying & selling6 min

Sell Your Used Bike for What It's Worth: The File That Makes the Difference

Service history, invoices, signed certificate: prep your bike for resale and sell faster at the right price.

Maintenance5 min

Bike bolt torque specs: the chart so you never lose a bolt

Chainring, stem, calipers, pedals: how tight each bolt should be - and why a torque wrench and threadlocker beat guessing.

Maintenance6 min

Tracking bike component wear: gauge, app, Garmin or logbook?

Four ways to know when to replace your parts. Only one actually follows your bike.

MaintenanceTutorial8 min

Bike tire wear: when to replace and how to check tire age

Wear indicator, cracks, DOT code: a tire ages even sitting in the garage

MaintenanceTutorial6 min

Bike brake pad wear: when to replace and how to check

Disc or rim, minimum thickness, glazing: what to watch for

MaintenanceTutorial5 min

Bike cassette wear: when to replace and how to check

Hooked teeth, chain skip: what to watch for

MaintenanceTutorial6 min

How to check and replace your bike chain

Check wear and replace at the right time

Buying & sellingTutorial6 min

Buying a used bike without getting burned

What to check before you hand over the money

Maintenance3 min

The real cost of bike maintenance: we did the math

The budget most cyclists underestimate

Maintenance4 min

Is mileage enough to know when to replace your bike components?

Chain checker vs mileage tracking: do you really need both?

Buying & selling5 min

The bike digital passport is coming in 2027

Here's what it actually changes

Track component wear and sell your bike with confidence.