Max Fuchs
· 27.05.2024
"Who asked for the entry-level hardtail?" a colleague barks as I park the Trek Procaliber 8 in the BIKE basement with the other candidates. I can understand his surprise. Pampered by the latest and most expensive technology, a simple hardtail on a budget doesn't really appeal to me either. But the term "dream bike" is elastic. So elastic, in fact, that it includes not only carbon speedsters worth a small car and high-tech racing machines, but also the affordable Trek hardtail. While many people only have their eyes on the high-end models from the premium manufacturers, some are dreaming of their first mountain bike attempts and the right bike for the job. For this purpose, entry-level hardtails are as essential as pedals for pedalling.
However, experienced cross-country riders prick up their ears when they hear the name Procaliber. After all, this is the race hardtail of the Trek pro team. Even though Jolanda Neff, Evie Richards and co. compete in most of their races on the Fully Supercaliber, the hardtail is still occasionally used on extremely pedalling-intensive and technically moderate routes. The USP of the carbon Procaliber: the so-called Iso-Speed bearing, which decouples the top tube and seat tube from each other, absorbs light impacts and bumps before they reach the rider. Sounds sophisticated. The price of the innovative carbon model series starts at 1800 euros. With the current aluminium Procaliber, the entry-level price drops again significantly: it starts at 1299 euros. Our test bike is the slightly more expensive model for 1499 euros. The aluminium version lacks the innovative joint on the seat pivot. Instead, the suspension travel on the fork increases from 100 to 120 millimetres. Also good: The seat tube already has a telescopic seat post. Trek specifies the maximum tyre width as 2.4 inches on the rear wheel. The tyres also come with a tubeless set-up ex works on the cheaper models. With its specification, the racing ambitions of the aluminium Procaliber take a back seat. Instead, the focus is on riding fun in moderate terrain.
Despite the trail-compatible equipment, our test bike cannot deny its roots in racing. The riding position is sporty. Despite the positive stem and longer fork, the short head tube still puts a lot of pressure on the front - typical racer. The total weight of 12.7 kilos also speaks in favour of the sporty character of the Trek. For comparison: The seven entry-level hardtails from our comparison test in BIKE 04/24 weighed an average of 13.3 kilos. The Procaliber is correspondingly fast. The easy-rolling Bontrager tyres do the rest. The comparatively high-quality drivetrain mix with an SLX trigger and an XT rear derailleur also earns praise. Components of this quality are not a matter of course in the 1500 euro league.
Considering the price, the Recon fork from RockShox is also perfectly fine. The response behaviour is just right. If you activate the adjustable low-speed compression damping, the fork can withstand even big hits and doesn't rush through its travel too quickly. If you close the compression stage completely, the fork stiffens up and doesn't bottom out even when pedalling. Off the beaten track, the Procaliber combines riding safety with playful handling. The compact geometry implements impulses quickly. In technical terrain, the telescopic seat post provides plenty of freedom of movement. In combination with the slightly more generous suspension travel, the aluminium Procaliber has an advantage over classic race hardtails. Tuning tip: If you regularly take the bike on trails, you should invest in grippier tyres with more puncture protection.
All lines and cables of the control centre run through openings in the frame into the interior of the aluminium chassis. There, the cables are exposed and not in guides or tubes. This makes repairs or replacing the brake system more difficult. The bolted bottom bracket and the inserted headset are to be praised. This makes installation and removal easier and therefore also maintenance work. Thanks to the UDH derailleur hanger, the Trek is also compatible with the latest transmission drivetrains from Sram.
The Procaliber 8 is perfect for your first attempts at mountain biking off the beaten track. The bike can also cope with serious terrain thanks to the telescopic seat post and plenty of suspension travel. The geometry is aimed more at sporty riders than comfort-orientated bikers.

Editor