2025 Trek Procaliber 8 Hardtail Mountain Bike

£1,400.00

25% Off pedals with this bike

Use code MTBPEDALS25 at checkout

Pick Your Pedals

Save with Cycle to Work

At Cycles UK we accept all major cycle to work scheme vouchers online and instore. Just enter your certificate details during checkout. 

The 2025 Trek Procaliber 8 Hardtail Mountain Bike is a cross-country mountain bike built for hot laps and singletrack. It comes with an aluminium frame that's built with modern geometry for handling fast corners and rough sections of trail while keeping you ready to sprint up climbs.

The Procaliber 8 is built around a lightweight Alpha Platinum Aluminium hardtail frame with modern XC geometry and 148 mm boost spacing for stiff support under power. 29" wheels are used on all frame sizes for maximum speed.

The Procaliber 8 comes with 120 mm of trail-smoothing front suspension from a RockShox Recon Gold RL fork with Debon Air spring, Motion Control damper and lockout. A clean shifting blend of 12-speed Shimano XT and SLX components, Tubeless-Ready Bontrager Kovee wheels, a Bontrager Line dropper post with internal routing and hydraulic disc brakes.

This bike is perfect for

Mountain bikers who want to dive into XC racing on a hardtail that's built to soar up climbs and stay composed through the rough stuff. You want the best in performance and reliability for every ride

Key Features
  • You get modern geometry and 120 mm of front suspension that keeps you in the attack on climbs and crushing confidently on descents
  • It balances the accessible price of an alloy hardtail with the performance of its carbon cohorts
  • You get the perfect blend of components with Shimano SLX and XT shifting and hydraulic brakes
  • Its Tubeless Ready 29in wheels keep rolling resistance down while helping fight flats
  • Internal cable routing keeps your ride quiet, reduces maintenance and looks sleek

Mountain Bike Buying Guide

Mountain biking is an incredibly diverse sport. Mountain bikes now come in three main flavours. They are XC, Trail and Enduro.

XC – short for cross country, are quick race bikes. They will normally have 29” wheels and come with 100mm of suspension. If you are mainly going to be riding bridleways and natural trails in the South East of England, where our shops are, an XC bike will be the quickest and most efficient option.

Trail – these bikes are designed to be pedalled up and down hill and for use on bridleways and natural trails, but also at dedicated trail centres. They normally come with 130mm or 140mm of suspension travel and can have either 27.5” or 29” wheels, but 29” is quickly becoming the norm. Trail bikes are good all-rounders. They won’t be as fast as an XC bike on the flat but they can handle a lot more challenging terrain, and a few jumps. If you plan on taking your bike to trail centres in Wales, or to the Alps, then a trail bike may be your best option.

Enduro – enduro racing is a thing in and of itself but many people buy enduro bikes for ‘aggressive’ trail riding and uplift days at places like Bike Park Wales. This generally means challenging downhill trails with some big jumps. With around 160mm of suspension travel enduro bikes can take some big hits. They are designed to be efficient enough to pedal up hills but really come into their own when pointed downhill. You get enduro bikes in either 27.5” or 29” wheel sizes as well as mullet setups of 29 at the front and 27.5 at the back.


Men’s and women’s mountain bikes

Nearly all the mountain bikes we sell are now unisex. All of the big brands have gradually stopped doing dedicated men’s and women’s bikes over the last few years. Instead they are focussed on producing bikes in a bigger range of sizes. So, for instance, the Trek Marlin 5 is a unisex bike that now comes in sizes from XXS to XXL large. This means it will fit riders from 4’ 5” to 6’ 5” and everything in between.


Read our full mountain bike buyers guide


Price Match at Cycles uk

We understand that price is important, so we regularly price-check our competitors to make sure we have the best offers available. We recognise that we will not always be the cheapest, so if you see the same product cheaper from any of our competitors then please get in touch via the form below and we will do our best to match any reasonable advertised price.

Trek made their first bikes in 1976 in a barn in Wisconsin. Now they’re one of the biggest bike brands in the world. Trek bikes cover everything from professional-level road and mountain bike race bikes to commuters, hybrids and kids bikes. There is a strong heritage of racing at Trek and many Trek bikes have a strong race influence. They take a very scientific approach to researching bike and human performance and then make the fastest and most efficient bikes they can.

It doesn’t stop their attention and passion for cycling flows through everything they do. Since the 1990s, Trek has supported Places for Bikes. Places for Bikes is an advocacy organisation in the USA that gets more people on bikes more often! Places for Bikes ethos falls in line with the companies mission statement to:

Build only products we love. Provide incredible hospitality to our customers, and change the world by getting more people on bikes.

Frame - Alpha Platinum Aluminium, tapered head tube, internal routing, BSA 73, hidden rack and kickstand mounts, UDH, Boost148, 12 mm thru axle

Fork - RockShox Recon Gold RL, DebonAir spring, Motion Control damper, lockout, tapered steerer, 42mm offset, Boost110, 15 mm Maxle Stealth, 120mm travel

Hub front - Shimano TC500 alloy, CentreLock, 110x15 mm thru axle

Hub rear - Shimano TC500 alloy, CentreLock, 148x12 mm thru axle

Skewer rear - Bontrager Switch thru axle, removable lever

Rim - Bontrager Kovee, double-wall, Tubeless-Ready, 28-hole, 23 mm width, Presta valve

Tyre - Bontrager Sainte-Anne Pro XR, Tubeless Ready, dual compound, aramid bead, 60 tpi, 29x2.20"

Tyre part - Bontrager TLR sealant, 180 ml/6 oz

Shifter - Shimano SLX M7100, 12-speed

Rear derailleur - Shimano XT M8100, long cage

Crank - E*thirteen Helix, 30T steel ring, 73 mm spindle length, 52 mm chainline

Bottom bracket - Shimano BB-MT501 BSA

Cassette - Shimano SLX M7100, 10-51T, 12-speed

Chain - Shimano SLX M7100, 12-speed

Pedal - VP-536 nylon platform

Saddle - Verse Short, chromoly rails, 145 mm width

Seatpost - Bontrager Line Dropper, 100mm travel, MaxFlow, internal routing, 31.6 mm

Handlebar - Bontrager Comp, alloy, 31.8 mm, 5 mm rise

Grips - Bontrager XR Trail Comp, nylon lock-on

Stem - Bontrager alloy, 31.8 mm, Blendr-compatible, 7-degree

Head set - Semi-integrated, sealed cartridge bearing, alloy cups, 1-1/8" top, 1.5" bottom

Brake - Shimano hydraulic disc, MT4100 lever, MT410 calliper

Brake rotor Shimano RT54, CentreLock

Weight - Medium size - 12.30 kg / 27.12 lbs (with TLR sealant, no tubes)

Weight limit - This bike has a maximum total weight limit (combined weight of bicycle, rider and cargo) of 136 kg (300 lb).

Colours PLASMA GREY PEARL, POWER SURGE/MERCURY
Sizes L, M, ML, S, XL
Brand Trek
Model Year 2025
Barcodes 601479097883, 601479097944, 601479097982, 601479098002, 601479098040, 601479098064, 601479098088, 601479098163, 601479098187, 601479098347
SKUs / Part Numbers 5301934, 5301935, 5301936, 5301937, 5301938, 5301939, 5301940, 5301941, 5301942, 5301943

Please note: Manufacturers can sometimes change the specification of the products from time to time.

Why buy from Cycles UK?

You May Also Like