Fat bike tire pressure by surface and rider weight, from tire makers' published ranges. Plus how cold drops psi and why floor ...

Clicks every pedal stroke, creaks when standing, ticks when coasting? Match the timing to the part, then fix it with Park ...

Disc brake rubbing on one side, in one spot or after a wheel change? Match the symptom to the cause, center the caliper, ...

Why won’t my bike tire inflate? If no air goes in at all, start at the valve and the pump head, not inside the tire. On a Presta valve, unscrew the small knurled nut at the tip and tap it once to free ...

A bike you lay down on is called a recumbent: a recumbent bicycle on two wheels, a recumbent trike on three, a velomobile when a shell covers it, and a recumbent exercise bike when it stands still in ...

Range is the highest gear divided by the lowest. Overlap counts the combinations whose gear also falls inside another chainring’s span, the same figure the calculator reports. Speeds assume 70 rpm in ...

You can take a cassette off without a chain whip, but you can’t take it off safely without a lockring tool. A length of old chain wrapped around a big cog holds the cassette as well as a chain whip ...

Road bikes use centimeters. Gravel, mountain and hybrid bikes use letters (S, M, L) and sometimes inches. Each column uses its own system, so a 54 cm road bike and a 17-inch mountain bike can both fit ...

Buying second-hand or used bicycle wheels may seem like a really good option for anyone trying to upgrade their metal steed on a budget, but is it? There are bargains to be had out there on eBay and ...

Bike tires do not expire on a single calendar date, but old rubber deserves a close inspection before you ride. Replace the tire if you see cracked sidewalls, brittle rubber, exposed casing threads, ...

A dusty chain does not always need a full teardown, but a black, gritty, wet chain needs more than a wipe. Clean enough to remove abrasive grime, dry the chain, then relube the rollers and wipe the ...

Choose the right bike, find your size, fix what broke and plan the ride. Free guides and calculators from riders, since 1998.