TREK PROCALIBER 8

Procaliber 8 is a fast, capable cross-country hardtail built to chase singletrack PRs and line up for race day. Its Alpha Platinum Aluminum frame delivers confident handling through tight corners and rough sections, while a 120mm RockShox Recon Gold fork smooths out the trail ahead. A wide-range SRAM Eagle 12-speed drivetrain, lightweight Bontrager Kovee wheels, and Shimano hydraulic disc brakes round out a build that’s ready to push the pace.

 

 

Frame & Fork

Frame

• Material: Alpha Platinum Aluminium
• Tapered head tube
• Internal cable routing
• BSA 73 mm threaded bottom bracket
• Hidden rack and kickstand mounts
• UDH (Universal Derailleur Hanger)
• Boost 148 rear spacing
• 12 mm thru-axle

Fork

• Model: RockShox Recon Gold RL
• DebonAir spring
• Motion Control damper
• Remote lockout
• Tapered steerer
• 42 mm offset
• Boost 110 spacing
• 15 mm Maxle Stealth thru-axle
• Travel: 120 mm

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Weight

• Weight (Size M): 13.73 kg (30.27 lbs) with TLR sealant, no tubes
• Maximum System Weight: 136 kg (300 lbs)

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Wheels & Tyres

Hubs

• Front: Shimano TC500 alloy, CenterLock, 110×15 mm thru-axle
• Rear: Shimano TC500-HG

Rear Axle

• Bontrager Switch thru-axle with removable lever

Rims

• Bontrager Kovee
• Double-wall construction
• Tubeless Ready
• 28-hole
• 23 mm internal width
• Presta valve

Spokes

• 14g black stainless steel

Tyres

• Maxxis Rekon Race
• Tubeless Ready
• EXO casing
• Folding bead
• 60 TPI
• 29×2.40"

Tubeless System

• Bontrager TLR rim strips
• Bontrager TLR sealant (180 ml / 6 oz)

Maximum Tyre Clearance

• Frame: 29×2.40"
• Fork: As specified by fork manufacturer

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Drivetrain

Shifter

• SRAM Eagle 70, 12-speed

Rear Derailleur

• SRAM Eagle 70 T-Type

Crankset

• SRAM Eagle 70 T-Type
• DUB spindle
• 32T chainring
• 55 mm chainline
• 170 mm crank length

Bottom Bracket

• SRAM DUB MTB Wide
• 73 mm BSA threaded

Cassette

• SRAM Eagle XS-1270 T-Type
• 10–52T
• 12-speed

Chain

• SRAM Eagle 70 T-Type, 12-speed

Pedals

• VP-536 nylon platform pedals

Maximum Chainring Size

• Refer to SRAM service manual

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Components

Saddle

• Verse Short
• Chromoly rails
• 145 mm width

Dropper Post

Features

• Bontrager Line Dropper
• MaxFlow design
• Internal cable routing
• 31.6 mm diameter

Handlebar

Grips

• Trek Line Comp lock-on grips

Stem

Specifications

• 31.8 mm clamp diameter
• Blendr-compatible
• 7° rise

Headset

• Semi-integrated
• Sealed cartridge bearings
• Alloy cups
• 1-1/8" upper bearing
• 1.5" lower bearing

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Braking System

Brakes

• Shimano MT410 hydraulic disc brakes
• MT4100 levers
• MT410 calipers

Rotors

• Shimano RT54 CenterLock
• 180 mm front
• 160 mm rear

Maximum Rotor Size

• Frame: 180 mm
• Fork: Refer to fork manufacturer

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Key Features

• Lightweight Alpha Platinum Aluminium hardtail frame
• Modern XC geometry with 120 mm suspension fork
• SRAM Eagle 70 T-Type 1×12 drivetrain
• UDH-compatible frame
• Threaded BSA bottom bracket for easier servicing
• Internal cable routing
• Tubeless-ready Bontrager Kovee wheelset
• Bontrager Line dropper post included
• Maxxis Rekon Race 29×2.40" tyres
• Rack and kickstand mounts for adventure and commuting use
• Boost hub spacing front and rear

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Recommended Rider Size (X-Caliber Gen 4)