Bontrager Mountain Bike tires

2009: Mountain Tires

™

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BONTRAGER + MOUNTAIN + TIRESBONTRAGER + MOUNTAIN + TIRES

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Tire designs don’t just fall from trees. They go through a stringent concept phase before our computer aided design group takes over.

Here the tire tread concepts are analyzed and tweaked down the very edges of each knob. While the tread is in design phase the Tire

carcass/construction features and tread compound are chosen for each tire to help ensure optimal tire performance. The two are

then mated on computer and another process of tweaking and analyzing occurs. Along the way graphics designers prepare a visual

presentation on the tire that mates well with your mountain bike wheels. Finally the tire goes through a comprehensive testing phase

before speeding you down the trail.

Tubeless Ready Technology (TLR)

Tubeless Ready technology is the lightest way to go tubeless.

Designed to improve upon existing tubeless systems, Tubeless

Ready tires offer the same secure bead to rim interface as standard

tubeless tires, but are 100 grams lighter per tire. They work in

conjunction with sealant to provide a lightweight seal and flat

protection that significantly improves performance.

The tire pressure flexibility that tubeless provides a user is a

benefit to mountain bikers. But standard tubeless has a weight

penalty that many mountain bikers don’t want to pay. Keith

Bontrager designed the Tubeless Ready system to offer the

same reliable bead/rim interface of standard tubeless tires but he

removed excess weight from the tire casing.

Standard tubeless tires are heavy due to a butyl liner that covers

the whole inner surface on the tire. Tubeless Ready tires remove

the heavy liner of butyl rubber and instead use Bontrager’s Super

Juice to seal air in the tire. This thin, glycol based sealant won’t

clump up or “cure” quickly like other sealants. Its thinner viscosity

also does a better job of coating the inner surface of the tire.

In addition to weight savings, Tubeless Ready technology provides

riders with the benefits of tubeless tires, including improved

traction through lower air pressure and elimination of pinch flats.

Standard UST tubeless setup without sealant

Tire (725g) = Heavy

Tire with Tube

Tire (570g) + Tube (130g) = 700g

Prone to pinch flats and punctures at lower air pressure

Lightweight Racing Tire with Latex Sealant

Tire (575g) + sealant (100g) = 675g

Heavy. Poor rim to tire seal

Bontrager Tubeless Ready

Tire (575g) + super Juice (65g) = 635g

Light, secure system performance

Standard UST Tubeless

Setup w/o Sealant

800

700

600

500

400

300

200

100

0Tire with

TubeLightweight

Racing Tire with

Stan’s Sealant

Bontrager Tubeless

Ready

Sea

len

tTir

e

Tir

e +

Sea

lan

t =

675

g

Tir

e

Su

per

Ju

ice

Tir

e +

Su

per

Ju

ice

= 6

35g

Tir

e =

725

g

Tir

e

Tub

e

Tir

e +

Tu

be

= 7

00g

Tubeless Ready Weight Summary

T E C H N O L O G Y

H O W A T I R E I S B O R N

B O N T R A G E R T I R E S

Tires are your bike’s only contact point with the trail. Their performance and design can have a large impact on

the quality of your ride. Back in 1996 Keith Bontrager designed his first tire tread in an effort to improve traction

during harder rides. Over the past decade, Bontrager has developed a comprehensive lineup of mountain tires,

today producing a selection of tires suitable for just about any condition you’ll find out on the trail. From the

dry, dusty trails of the southwest to the wet, rocky singletrack of State College, Pennsylvania, Bontrager has

a tire to handle it all.

BONTRAGER + MOUNTAIN + TIRES

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An ultra-fast rolling cross country racing

| + | Small, tightly spaced knobs for dry and dusty conditions

| + | Siping (thin slits cut across tread blocks) on middle knobs improves traction on dusty surfaces

| + | Tread pattern can be run on front or rear wheels

| + | 120 tpi casing gives great compliance to the trail

| + | Designed by racers working with top engineers

| + | 26 x 2.0, 2.2

| + | 29 x 2.0

Lightweight, fast rolling XC or trail tire for excellent performance on both loose and firm surfaces

| + | Large volume casing

| + | Front and rear specific design

| + | Siping on outer knobs improves traction on wet or slick surfaces

| + | Tubeless Ready versions

| + | 26 x 2.25 (52/52) / 2.20 (52/50)

| + | 29 x 1.8 (46/44) & 2.25 (52/52) / 2.20 (52/50)

| + | 700 x 34 Cross

| + | Available in wire bead and folding versions

A fast tire that performs well on a variety of terrain

| + | Small, closely spaced & well supported knobs for loose or dry conditions

| + | Siping on outer knobs improves on outer knobs improves traction on wet or slick surfaces

| + | Tubeless Ready, Abrasion Resistant Casing

| + | 26 x 1.9 (48/46), 2.1 (53/51), 2.4 (60/59)

| + | 29 x 1.75 (44/42) & 2.1 (53/51)

A motocross inspired tire that performs well in more demanding trail conditions

| + | Tall, stiff, well spaced knobs for traction in loose terrain

| + | Siping on outer knobs improves traction on wet or slick surfaces

| + | Abrasion Resistant Casing

| + | 26 x 2.1 (51/49), 2.2 (54/52) & 2.35 (58/56)

| + | 29 x 2.2 (54/52)


An ideal lightweight cross-country race tire for dry, hard pack conditions

| + | Short, stiff and tightly spaced center knobs for low rolling resistance

| + | Aggressive transition and edge knobs for cornering control

| + | Tubeless Ready versions

| + | 26 x 2.0 (47/46) & 2.2 (52/52)


| + | Available in a 20” and 24” as the SX Youth Tire

A narrow tire designed to excel in mud and perform predictably in other conditions

| + | Tall, stiff, widely spaced knobs shed mud easily

| + | Heavily siped on outer knobs for improved traction on wet and slick surfaces

| + | Smaller volume casing

| + | Abrasion Resistant Casing

| + | Tubeless Ready

| + | 26 x 1.8 (48/44) & 2.0 (50/47)

| + | 29 x 2.0 (50/47)


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BONTRAGER + MOUNTAIN + TUBES

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Race XXX Lite

| + | 0.45mm wall thickness

| + | Extra weight savings for increased performance

| + | Equipped with removable valve cores

| + | Available with 48mm and 60mm Presta valves

| + | Gray banded box

Heavy Duty

| + | Added flat protection for mountain bikes


| + | Available with 48mm Presta and

Schrader valves

| + | Gray banded box

Race X Lite


| + | Reduces rotational weight

| + | Equipped with removable valve cores

| + | Available with 36mm, 48mm, 60mm,

and 80mm Presta valves.

| + | Blue banded box

Standard

| + | Premium quality, standards weight replacement tubes


| + | Available with 36mm, 48mm, 60mm, 80mm Presta

and Schrader valves

| + | Red banded boxes

Thorn Resistant

| + | 4.1mm wall thickness (tread side)

| + | Asymmetric extrusion puts the extra rubber only where

it is needed – along the tire sidewall and tread zones

| + | Available with 36mm, 48mm and Schader valves

| + | Orange banded box

Self Sealing


| + | Reduces puncture flats with Slime which instantly

seals small holes

| + | Available with 36mm, 48mm Presta and Schrader valves

| + | Yellow banded box

T I R E B U Y E R ’ S G U I D E B O N T R A G E R T U B E S

5

4

5

4

4

1

3.5

2

Hard Pack

4

5

3

5

3.5

4

5

4

Loose/Dry

3.5

5

4

4

3.5

3

3

4.5

Tacky

1

2

1.5

1

3.5

5

2

3.5

Mud

Lightweight, large volume cross country tire with directional specific tread pattern for excellent

performance on loose or firm surfaces

All-purpose tire for dry conditions that excels in a variety of terrain

An ideal lightweight cross country race tire for dry, hard pack conditions

Lightweight, large volume cross country tire with directional specific tread pattern for excellent

performance on loose or firm surfaces

All-around cross-country tire that can hook up well on all terrain

Outstanding tread pattern for muddy or loose conditions on race day

Large volume and footprint for tackling dry technical terrain

Large volume and footprint for tackling wet technical terrain

Tire Model

Suitability: Low High

Surface

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Bontrager Mountain Bike tires

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