Mountain Bike Tires: How to Choose
MTB tire selection has gotten complicated with all the compounds, casings, and tread patterns flying around. As someone who’s transformed how my bike handles just by swapping rubber, I learned everything there is to know about matching tires to terrain. Today, I’ll share what actually matters.
Width
Probably should have led with this section, honestly. Wider tires provide more grip and cushion. Narrower tires roll faster and weigh less. Find the balance for your riding.
2.1-2.3″: Cross-country focus. Lighter, faster rolling. Less grip on loose terrain.
2.3-2.5″: Trail riding sweet spot. Balances speed and traction.
2.5-2.6″: Aggressive trail and enduro. More grip, more cushion, more weight.
Your rim width matters too. Wide tires on narrow rims get a rounded profile that squirms. Match tire width to rim internal width for optimal performance.
Tread Pattern
That’s what makes proper tread selection endearing to us who ride varied terrain — it actually changes how the bike handles. Tall, widely-spaced knobs grip in loose conditions but roll slowly. Tighter, shorter knobs roll fast but lose grip on loose stuff.
Front tires benefit from more aggressive tread for steering control. Rear tires can run lower profile for better rolling efficiency.
Compound and Casing
Softer compounds grip better but wear faster. Harder compounds last longer but grip less. Dual-compound tires offer a reasonable compromise.
Heavier casings resist punctures and sidewall cuts. Lighter casings save weight but are more fragile. Match casing to how rough you ride.
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