Trek Procaliber 8 Mountain Bike 2027 - MTB
The Procaliber 8 is an XC-focused hardtail that blends efficient pedalling with confident trail handling. A 120mm RockShox Recon Gold fork, SRAM Eagle 70 T-Type drivetrain and 150mm dropper post give it the versatility to tackle varied terrain.
Key Features:
- Alpha Platinum Aluminium frame with XC geometry, Boost 148 and UDH
- RockShox Recon Gold RL DebonAir fork with 120mm travel and lockout
- SRAM Eagle 70 T-Type 12-speed drivetrain with wide-range 10-52t cassette
- Shimano MT410 hydraulic disc brakes with MT4100 levers
- 29in Bontrager Kovee wheels with 2.4in Maxxis Rekon Race EXO tyres
- 150mm Bontrager Line dropper post gives you more room on technical trails
- Available with 0% APR finance
The Trek Procaliber 8 is built for riders who enjoy the efficient feel of a cross-country hardtail but want enough capability for more varied trails. Its Alpha Platinum Aluminium frame combines a lightweight, responsive platform with modern geometry designed to feel composed when the terrain becomes rougher or steeper.
Trek now produces this frame using low-emission aluminium made with renewable energy, part of a move away from higher-emission aluminium across its alloy bike production. The frame also uses a straightforward threaded BSA bottom bracket and SRAM's Universal Derailleur Hanger (UDH), making replacement and maintenance easier.
Up front, the RockShox Recon Gold RL uses a DebonAir air spring, allowing pressure to be adjusted to suit your weight and riding style. Its 120mm of travel gives you more support over roots, rocks and trail features than a traditional shorter-travel XC setup, while the Motion Control damper and lockout let you adjust its behaviour for smoother climbs and faster sections.
SRAM's Eagle 70 T-Type drivetrain uses a wide 10-52t cassette and 32-tooth chainring, providing plenty of low gearing for steep off-road climbs while retaining useful range when the trail speeds up. The T-Type system is designed around SRAM's Full Mount interface, creating a robust drivetrain setup suited to mountain biking.
The 29in Bontrager Kovee wheels help maintain momentum over rough surfaces and are tubeless ready, giving you the option to remove the inner tubes and experiment with lower tyre pressures. They're paired with 2.4in Maxxis Rekon Race tyres, which use a relatively fast-rolling tread suited to XC riding, with EXO casing protection adding durability for rocky trails.
A 150mm Bontrager Line dropper post adds useful versatility beyond traditional XC riding. Lowering the saddle gives you more space to move around the bike on steep descents, through corners and over technical features, then returns it to full height for efficient pedalling.
Shimano hydraulic disc brakes combine MT410 callipers with MT4100 levers for predictable speed control in changing conditions. Boost thru axles at both ends help create a secure connection between the wheels and frame or fork.
Hidden rack and kickstand mounts also broaden the Procaliber's usefulness beyond faster trail riding. They allow the frame to accept practical accessories without adding visible mounts to its clean XC-focused design.
The Procaliber 8 brings together the simplicity and pedalling efficiency of a hardtail with a 120mm fork, wide tyres and a full-length dropper post. That makes it a good choice for riders who enjoy covering ground quickly but don't want their XC bike to feel limited when the route includes more technical trails.
Occasionally, without notice, manufacturers change product design and/or specifications.
| 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 RockShox Recon Gold RL, DebonAir spring, Motion Control damper, lock |
| Headset | Semi-integrated, sealed cartridge bearing, alloy cups, 1-1/8" top, 1.5" bottom |
| Stem | Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree |
| Bars | Bontrager Rhythm Comp, alloy, 31.8 mm, 15 mm rise |
| Front Brake | Shimano hydraulic disc, MT4100 lever, MT410 calliper // Shimano hydraulic disc, MT4100 lever, MT410 calliper Shimano hydraulic disc, MT4100 lever, MT410 caliper // Shimano hydraulic disc, MT4100 lever, MT410 caliper |
| Rear Brake | Shimano hydraulic disc, MT4100 lever, MT410 calliper // Shimano hydraulic disc, MT4100 lever, MT410 calliper Shimano hydraulic disc, MT4100 lever, MT410 caliper // Shimano hydraulic disc, MT4100 lever, MT410 caliper |
| Rear Mech | SRAM Eagle 70, T-Type |
| Speed | 12 |
| Rims | Bontrager Kovee, double-wall, Tubeless-Ready, 28-hole, 23 mm width, Presta valve |
| Front Hub | Shimano TC500 alloy, CentreLock, 110x15 mm thru axle |
| Rear Hub | Shimano TC500-HG |
| Front Tyre | Maxxis Rekon Race, tubeless ready, EXO casing, folding bead, 60 tpi, 29x2.40" |
| Rear Tyre | Maxxis Rekon Race, tubeless ready, EXO casing, folding bead, 60 tpi, 29x2.40" |
| Seat Post | Bontrager Line Dropper, 150mm travel, MaxFlow, internal routing, 31.6 mm |
| Saddle | Verse Short, chromoly rails, 145 mm width |
| Chainset | Sram Eagle 70, T-Type, DUB, 32T, 55 mm chainline |
| Bottom Bracket | SRAM DUB MTB Wide, 73 m, BSA threaded |
| Chain | SRAM Eagle 70, T-Type, 12-speed |
| Cassette | SRAM Eagle XS-1270, T-Type,10-52, 12-speed |
| Pedals | VP-536 nylon platform |
Mountain Bike Size Chart
|
Height
|
Bike Size
|
Mountain Bike Size
|
|
4’8” – 5’1”
143 – 155 cm
|
XXS
|
13” (33 cm)
|
|
5’1” – 5’4”
155 – 163 cm
|
XS
|
15” (38 cm)
|
|
5’4” – 5’7”
163 – 170 cm
|
S
|
16” (41 cm)
|
|
5’7” – 5’10”
170 – 178 cm
|
M
|
18” (46cm)
|
|
5’10” – 6’0”
178 – 183 cm
|
L
|
19” (48cm)
|
|
6’0” – 6’3”
183 – 191 cm
|
XL
|
20” (51 cm)
|
|
6’3” – 6’5”
191 – 196 cm
|
XXL
|
21” (53 cm)
|
|
6’5” – 6’9”
196 – 205 cm
|
XXXL
|
22” (56 cm)
|
* Mountain bikes are sized differently to road bikes. Typically, they are sized in inches as the first MTBs were produced in the USA. European brands like Lapierre and Haibike like to use centimetres for all their bikes. The measurements of their mountain bikes doesn’t match their road bikes but are like a simple conversion from the inches measurement. This is why we have included cm measurements in brackets for the Mountain bike column.
Read our bike size guide for more information on sizing.
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Get this on cycle to work
Save up to £546.00
Cycle to work is a government funded salary sacrifice scheme which allows you to spread the cost of purchasing a bike and equipment and save on Income Tax and National Insurance.
Lower Tax Rate | Higher Tax Rate | |
|---|---|---|
Monthly pre-tax cost | £108.33 | £108.33 |
Monthly cost to you | £78.00 | £62.83 |
Total cost over 12 mths | £936.00 | £754.00 |
Total savings | £364.00 | £546.00 |
The calculations provided here are based on a monthly pay frequency and will vary depending on your personal taxation and your employers scheme.
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