X-Caliber 7 | Trek Bikes (AU)

2021

X-Caliber 8

$1,999.99

You're new to mountain biking and want a high-value bike that's perfect for local XC trails and even racing. You want to invest in the parts that make a difference in performance – frame, suspension and brakes – and want a bike you won't immediately outgrow as your skills advance.

A lightweight Alpha Gold Aluminium frame, a RockShox 30 Silver 100 mm suspension fork with a lockout and an air spring that's lighter and more adjustable than a coil spring, a dependable Shimano 1x10 drive train with a wide range of gears for easier climbing and tubeless-ready wheels with wider Boost141 hubs for increased wheel strength and better tyre clearance.

X-Caliber 7 is a great cross-country mountain bike at great value. It has the same features found on higher-end bikes – like internal cable routing, dropper post compatibility, a tapered head tube and Boost hub spacing – all on a platform that's easy to upgrade down the line.

It gets you into the world of cross-country riding and racing at a great price, and it's a mountain bike that can grow with you as your skills advance
The sleek internal cable routing gives you clean looks, protects your cables and makes it easy to upgrade to a dropper post for even more capability
Smart Wheel Sizing means you'll get the fastest wheel that fits (29˝ wheels on larger frames, 27.5˝ wheels on smaller frames)
The RockShox air fork has a rebound adjust and can be tuned to the rider’s weight, and it’s way higher quality than what you’d normally get on an MTB at this price
The 1x drive train delivers a wide range of gearing with the simplicity of a single shifter

X-Caliber is a classic XC hardtail with quick-handling geometry, weight-conscious parts and just enough suspension to take the edge off bumps. These models are built for efficiency, making them great for racers or anyone else who wants to cover more ground in less time.

The Alpha Gold Aluminuum frame is packed with features that make your ride better. A tapered head tube gives you more precise, confident handling on the front end, while Boost 141 rear hub spacing gives you shorter chainstays for more nimble handling at the back.

The right wheel size paired with your frame size gives you the perfect combination of responsiveness and control.

Locked suspension means your fork remains inactive, increasing pedalling efficiency. Perfect for extended road sections where efficiency is more important than bump absorption.

We route shift and brake cables through the frame to keep things clean and simple. And it looks great, too.

Bontrager stem technology lets you clip your gear directly to the stem for clean looks and maximum user friendliness.

Learn more

Going for a long ride? Rack mounts make carrying accessories a breeze.

Chainstay mounts make it easy to install a rear kickstand that stays out of your way and supports bikes of all sizes. No more laying or leaning.

Internal routing ports make it easy to add a dropper post upgrade that lets you lower your saddle on the fly so it's out of your way for tricky sections of trail.

*spec applies to all sizes unless otherwise noted

Frameset

Frame	Alpha Gold Aluminium, tapered head tube, internal derailleur and dropper post routing, rack and kickstand mount, Boost141, 5 mm QR
*Fork	Size: XS RockShox Judy SL, Solo Air spring, TurnKey lockout, tapered steerer, 42 mm offset, 100x5 mm QR, 80 mm travel
	Size: S RockShox Judy SL, Solo Air spring, TurnKey lockout, tapered steerer, 42 mm offset, 100x5 mm QR, 100 mm travel
	Size: M, M/L, L, XL, XXL RockShox Judy SL, Solo Air spring, TurnKey lockout, tapered steerer, 46 mm offset, 100x5 mm QR, 100 mm travel
Max compatible fork travel	120mm (XS: 100mm)

Wheels

Hub front	Formula DC-20, alloy, 6-bolt, 100 mm ThruSkew
Hub rear	Formula DC-2241, alloy, 6-bolt, Shimano 8/9/10 freehub, Boost141, 5 mm QR
Rim	Bontrager Kovee, double-wall, Tubeless Ready, 28-hole, 23 mm width, Presta valve
Spokes	14 g stainless steel
*Tyre	Size: XS, S Bontrager XR2 Comp, wire bead, 30 tpi, 27.5x2.20"
*Tyre	Size: M, M/L, L, XL, XXL Bontrager XR2 Comp, wire bead, 30 tpi, 29x2.20"
Max tyre size	27.5x2.80" or 29x2.40"

Drivetrain

Shifter	Shimano Deore M4100, 10 speed
Rear derailleur	Shimano Deore M5120, long cage
*Crank	Size: XS, S, M Shimano Deore M5100, 30T steel ring, Boost, 170 mm length
*Crank	Size: M/L, L, XL, XXL Shimano Deore M5100, 30T steel ring, Boost, 175 mm length
Cassette	Shimano Deore M4100, 11-46, 10-speed
Chain	KMC X10, 10-speed
Pedal	VP-536 nylon platform
Max. chainring size	32T

Components

Saddle	Bontrager Arvada, steel rails, 138 mm width
*Seatpost	Size: XS, S Bontrager alloy, 31.6 mm, 12 mm offset, 330 mm length
	Size: M Bontrager alloy, 31.6 mm, 12 mm offset, 360 mm length
	Size: M/L, L, XL, XXL Bontrager alloy, 31.6 mm, 12 mm offset, 400 mm length
*Handlebar	Size: XS Bontrager alloy, 31.8 mm, 5 mm rise, 690 mm width
*Handlebar	Size: S, M, M/L, L, XL, XXL Bontrager alloy, 31.8 mm, 5 mm rise, 720 mm width
Grips	Bontrager XR Trail Comp, nylon lock-on
*Stem	Size: XS, S Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 60 mm length
	Size: M Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 70 mm length
	Size: M/L, L Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 80 mm length
	Size: XL, XXL Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 90 mm length
Head set	Semi-integrated, loose ball bearing, 1-1/8" top, 1.5" bottom
Brake	Shimano MT200 hydraulic disc
*Brake rotor	Size: XS, S, M, M/L, L, XL, XXL Shimano RT26, 6-bolt,160 mm
*Brake rotor	Size: L, XL, XXL Shimano RT26, 6-bolt,180 mm

Weight

Weight	M - 13.39 kg / 29.53 lbs (with tubes)
Weight limit	This bike has a maximum total weight limit (combined weight of bicycle, rider and cargo) of 136 kg (300 lb).

We reserve the right to make changes to the product information contained on this site at any time without notice, including with respect to equipment, specifications, models, colors, and materials.

Bike and frame weights are based on pre-production painted frames at the time of publication. Weights may vary in final production

Proper bike fit is essential for best performance and comfort. Any size and geometry measurements shown on trekbikes.com are for general comparison purposes only. To find your perfect fit, visit an authorised retailer, where an expert skilled at sizing will help you find the appropriate bike and size for your individual needs.

Rider Height

Inseam

137.0 - 155.0 cm

4'5.9" - 5'1.0"

64.0 - 73.0 cm

25.2" - 28.7"

153.0 - 166.5 cm

5'0.2" - 5'5.6"

72.0 - 79.0 cm

28.3" - 31.1"

161.0 - 172.0 cm

5'3.4" - 5'7.7"

76.0 - 81.0 cm

29.9" - 31.9"

M/L

165.5 - 179.0 cm

5'5.2" - 5'10.5"

77.0 - 84.0 cm

30.3" - 33.1"

177.0 - 188.0 cm

5'9.7" - 6'2.0"

83.0 - 88.0 cm

32.7" - 34.6"

186.0 - 196.0 cm

6'1.2" - 6'5.2"

87.0 - 92.0 cm

34.3" - 36.2"

2XL

195.0 - 203.0 cm

6'4.8" - 6'7.9"

92.0 - 95.0 cm

36.2" - 37.4"

All measurements provided in cm unless otherwise stated.

Frame size number	Frame size letter	Wheel size	A — Seat tube	B — Seat tube angle	Effective seat tube angle	C — Head tube length	D — Head angle	E — Effective top tube	F — Bottom bracket height	G — Bottom bracket drop	H — Chainstay length	I — Offset	J — Trail	K — Wheelbase	L — Standover	M — Frame reach	N — Frame stack
13.5	XS	27.5"	34.3	73.5°	73.5°	9.0	69.3°	54.4	29.2	5.8	42.5	4.2	8.8	103.6	69.8	37.6	56.5
15.5	S	27.5"	36.8	73.5°	73.5°	9.0	69.3°	55.5	30.2	4.8	42.5	4.2	8.8	105.3	72.4	38.5	57.4
17.5	M	29"	41.9	71.9°	73.0°	9.0	69.5°	60.1	31.1	5.8	43.8	4.2	9.4	110.9	74.8	41.8	59.8
18.5	ML	29"	44.4	71.9°	73.0°	9.0	69.5°	61.7	31.0	5.8	43.8	4.2	9.4	112.5	75.7	43.4	59.8
19.5	L	29"	47.0	71.9°	73.0°	10.0	69.5°	63.7	31.0	5.8	43.8	4.2	9.4	114.5	75.7	45.1	60.8
21.5	XL	29"	52.1	71.9°	73.0°	12.0	69.5°	65.8	31.0	5.8	43.8	4.2	9.4	116.7	76.8	46.6	62.7
23.0	XXL	29"	55.9	71.9°	73.0°	12.0	69.5°	67.2	31.1	5.8	43.8	4.2	9.4	118.1	80.4	48.0	62.7

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X-Caliber 8

It's right for you if...

The tech you get

The final word

The Walkthrough

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Features

Smart Wheel Size

Suspension lockout

Internal cable routing

Blendr stem

Learn more

Rack mounts

Rear kickstand mount

Internal dropper compatible

Specifications

Sizing & fit