Mountain Bike Tyres

Tyres

Bmx Tyres

Kids Bike Tyres

Schwalbe Tyres

Wheelchair Tyres

Gravel Tyres

Hybrid Bike Tyres

Road & Commuter Tyres

Tubeless Tyre Parts

Compare (0/5)

Find Your Size

Step 1: Measure your height

Take off your shoes
Stand with your back straight against a wall
Balance a book on your head to mark your height on the wall
Measure your height by the distance from the floor to the mark

Your height:

Find Your Size

Step 2: Adjust your inseam

Based on your height, we’ve calculated a starting point.
You can measure your inseam by tucking a book between your legs so there is pressure but it isn’t uncomfortable.
Inseam typically falls with 5cm of the average.

Your inseam:

Find Your Size

Your results

For the we suggest the following size.

More comfort More speed

Height: --

Inseam: --

Adjusted Height: --

Find Your Size

We have saved your measurements.

Recommended sizes will now be highlighted on the page.

Things to Consider When Shopping for Mountain Bike Tyres

When shopping for mountain bike tyres, the most important thing to consider is the terrain you ride most often. Loose, muddy trails call for tyres with aggressive, widely spaced knobs that clear dirt quickly, while hardpack and dry conditions suit a tighter tread pattern that rolls faster and offers more predictable cornering. Tyre width is another key factor, with wider tyres providing more grip and cushioning over rough ground, and narrower options suiting faster, smoother trails. You should also think about whether you want to run a tubeless setup, as many mountain bike tyres are tubeless-ready, offering lower rolling resistance and better puncture resistance without an inner tube. Casing thickness affects durability and weight too, so riders tackling sharp rocks or roots may want a reinforced option for added protection.

Related Categories

Road & Commuter Tyres

Roll faster & avoid flats with our road & commuter tyres at 99 Bikes. From fast-rolling race tyres to durable, puncture-resistant options for commuting. Our experts can help you choose the right set. Guaranteed Best Price. Shop online or visit your local store!

Explore More

Hybrid Bike Tyres

Hybrid bike tyres built for real-world riding. Browse versatile options for commuting, bike paths, and mixed terrain, with puncture protection to keep you rolling.

Explore More

Gravel Tyres

Gravel tyres built for mixed terrain and long adventures. Shop gravel, cyclocross and trekking options online or in-store with fast delivery available.

Explore More

Kids Bike Tyres

Keeping your child's bike ride-ready starts with the right tyres. Browse kids tyres sized for little bikes, built for grip, durability, and everyday adventures.

Explore More