Guide

Most mountain bikes weigh 11–16 kg (24–35 lb), with hardtails lighter and e-MTBs much heavier.

Lube a bike chain every 100–150 miles in dry weather and after any wet or gritty ride; tune the interval by sound, feel, and chain appearance.

A stock 450 dirt bike makes about 52–56 hp at the rear wheel; factory editions can reach around 57.

A Peloton Bike weighs about 129–135 lb; the Peloton Bike+ is about 140–144 lb, not including packaging.

Bike tire pressure depends on width, rider mass, and surface; start with the chart below and fine-tune in 1–2 psi steps.

For how much air goes in a bike tire, most setups land between 20–100 psi; use tire width, total weight, and rim limits, then fine-tune after a test ride.

To measure a bike frame, record seat tube length, effective top tube, and stack & reach from the bottom bracket for a clear size picture.

Most bike tires run between 20–90 PSI; match pressure to tire width, rider weight, surface, and rim limits.

Most riders can bike 20–65 miles in a day; trained cyclists or tourers may cover 70–100+, depending on terrain, load, and ride time.

A triathlon bike leg ranges from about 12.4 miles (sprint) to 112 miles (ironman), with Olympic at 24.8 miles.