Tire and wheel fitment
Lug Nut Key Types: Identifying the Right Wheel Nut Tool
Learn which lug nut key or socket fits your wheels. Covers what tire sidewall numbers do and do not tell you, plus hex sockets, wheel lock keys, spline-drive keys and key patterns.
Choosing Mountain Bike Tire Sizes and Checking Whether Wider Tires Fit
How to read 29-inch and other mountain bike tire markings, compare widths and diameters with simple calculations, and check rim, frame and fork clearance before fitting wider tires.
Snow Chain Tire Size Chart: Finding the Right Chain Size From Your Tire Sidewall
Learn how to read the tire size on your sidewall, what width, aspect ratio and rim diameter mean for chain fit, and how to use a snow chain size chart correctly.
How to Check Wheel Clearance for a Big Brake Kit
Learn how to check big brake kit wheel fitment: what tire sidewall numbers mean, how rim diameter relates to minimum wheel diameter, radial and spoke clearance, templates, and measurement steps.
Are Snow Chains Hard to Install? Start With Your Tire Size and Clearance
Snow chains are not hard to install when they match your tire size and your vehicle has clearance. Learn to read sidewall numbers, check chain fit and practice.
Tire Valve Stem Size Chart: Dimensions, Lengths and Fitment
How to read tire and rim markings, match car and bicycle valve stems to rim hole size, and choose valve stem length for 40, 45, 50 and 60 mm rims.
Snow Chain Clearance: How to Check Tire and Wheel Fitment
How to read tire sidewall markings for snow chain fitment, calculate sidewall height and diameter, and check wheel-well clearance on low-profile tires.
Bicycle Rim-Brake Caliper Clearance: Checking Tire and Rim Fit
How to read bicycle tire sidewall numbers, estimate tire height and diameter, and check rim brake caliper clearance to find the max tire width your rim brakes can take.
Snow Sock Tire Size Guide: Finding the Right Fit
How to read the tire size on your sidewall, what width, aspect ratio and rim diameter mean, how to calculate diameter and circumference, and how to match your tire to a snow sock fitment chart.
Wheel Spacer Thickness Guide: How to Choose the Right Size and Know Your Fitment Limits
Read tire and wheel markings, calculate how size changes affect clearance, choose a wheel spacer thickness, and check thread engagement, hub engagement and maximum limits.