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2018

Procaliber 8

/
£1,500.00 Model 21841
The Procaliber 8 delivers all the trims of a race-ready XC mountain bike – RockShox fork, Shimano XT/SLX drivetrain – on a lightweight, durable Alpha Platinum Aluminium frame with an IsoSpeed decoupler that smooths out rough trail. This is a high-quality hardtail with the key performance upgrades chosen to help you towards your fastest, longest rides ever.
The Procaliber 8 delivers all the trims of a race-ready XC mountain bike – RockShox fork, Shimano XT/SLX drivetrain – on a lightweight, durable Alpha Platinum Aluminium frame with an IsoSpeed decoupler that smooths out rough trail. This is a high-quality hardtail with the key performance upgrades chosen to help you towards your fastest, longest rides ever.
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It's right for you if...

You like the responsiveness of an aluminium frame, and would rather spend your money on better components than a full carbon frame. You want a ride that's lightweight and responsive, with an IsoSpeed decoupler and carbon seatpost, so you can pedal over rough spots with comfort and ease. 

The tech you get

A durable and light Alpha Platinum Aluminium frame with IsoSpeed, Shimano Deore XT/SLX 2x11 drivetrain, Race Face Next R carbon crank, Shimano M500 hydraulic disc brakes and an advanced RockShox Reba RL fork with Motion Control damper and a remote lockout. Plus, Boost 148/110 Duster Elite wheels and additional lightweight parts, like a Bontrager Pro OCLV Carbon seatpost and Montrose Comp saddle.

The final word

This is hands down the best aluminium hardtail we make. You're getting Trek's highest-grade Alpha Platinum Aluminium frame, the unique advantage of trail-smoothing IsoSpeed, a full-on race-worthy spec, a carbon crank and the kind of quality suspension that can hold its own on the World Cup XC circuit.

favorite_borderWhy you'll love it

  1. The IsoSpeed decoupler makes it ride smoother than any other hardtail, so your body doesn't get beaten up by trail chatter
  2. You're putting your money into the parts that make a big difference in performance: an advanced frame, carbon crank and quality RockShox suspension
  3. The carbon crank saves a lot of weight, and it's super responsive when you're putting the hammer down on a climb
  4. Ride the fastest wheel that fits with Smart Wheel Size

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Features

Specifications

  • Frameset

    Frame
    Alpha Platinum Aluminium, IsoSpeed, E2 tapered head tube, internal derailleur routing, balanced post mount brake, PF92, Boost148, G2 Geometry on 29ers
    Front suspension
    RockShox Reba RL, Solo Air spring, Motion Control remote lockout, E2 tapered steerer, G2 Geometry w/51 mm offset on 29ers, Boost110, 100 mm travel (13.5: 80 mm travel)
  • Wheels

    Wheels
    Bontrager Duster Elite 23, Tubeless Ready, Boost110 front, Boost148 rear, tubeless strips included, valves sold separately
    Tyres
    Bontrager XR2 Team Issue, Tubeless Ready, 120 tpi, aramid bead, 29x2.20˝ (13.5 & 15.5: 27.5x2.20˝)
  • Drivetrain

    Shifters
    Shimano SLX M7000, 11-speed
    Front derailleur
    Shimano SLX M7020
    Rear derailleur
    Shimano Deore XT M8000, Shadow Plus
    Crank
    Race Face Next R, 36/26
    Bottom bracket
    PF92
    Cassette
    Shimano SLX M7000, 11-42, 11-speed
    Chain
    KMC X11-1
    Pedals
    Not included
  • Components

    Saddle
    Bontrager Montrose Comp, chromoly rails
    Seatpost
    Bontrager Pro, OCLV Carbon, 31.6 mm, 5 mm offset
    Handlebar
    Bontrager Race Lite, 31.8 mm, 5 mm rise, 720 mm width
    Grips
    Bontrager Race Lite, lock-on
    Stem
    Bontrager Elite, 31.8 mm, 7-degree
    Head set
    FSA IS-2, 1-1/8˝ top, 1.5˝ bottom
    Brake set
    Shimano MT500 hydraulic disc
  • Weight

    Weight
    17.5" - 11.79 kg / 26.00 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 Trek pre-production painted frames at the time of publication. Weights may vary in final production

Sizing & fit

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 Trek retailer, where an expert skilled at sizing will help you find the appropriate bike and size for your individual needs.

 

Rider Height

All measurements provided in cm unless otherwise stated.

Frame size number 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 Frame rise
15.5 in 27.5" 36.8 73.0° 73.0° 10.0 69.3° 56.4 30.2 4.8 42.5 4.4 8.5 105.3 71.0 38.2 58.3 56.3
17.5 in 29" 41.9 72.5° 72.5° 9.0 69.5° 59.9 31.1 5.8 43.5 5.1 8.3 109.8 74.6 41.2 59.5 59.5
18.5 in 29" 44.4 72.3° 72.3° 9.0 69.5° 61.7 31.1 5.8 43.5 5.1 8.3 111.3 75.9 42.7 59.5 59.5
19.5 in 29" 47.0 72.0° 72.0° 10.0 69.5° 63.8 31.1 5.8 43.5 5.1 8.3 113.2 77.7 44.2 60.4 60.4
23 in 29" 55.9 72.0° 72.0° 12.0 69.6° 67.3 31.1 5.8 43.5 5.1 8.3 116.6 83.8 47.1 63..2 63..2
21.5 in 29" 52.1 72.0° 72.0° 12.0 69.5° 65.9 31.1 5.8 43.5 5.1 8.3 115.4 81.2 45.7 62.8 62.8

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