The ride, not just the specs
Made to race cross-country.
Procaliber is a cross-country race hardtail: light, efficient, and ready to go fast from the gun.
Whether you race every weekend or just love a fast lap, it rewards every pedal stroke.
Trek Procaliber 6
XL / Red Serpentine
$1,499.99
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Trek / Cross Country Mountain Bikes
Trek Procaliber 6
Race-ready, from the first pedal.
Procaliber 6 is a cross-country mountain bike built for hot laps and fast singletrack. It strikes the perfect balance between race-ready and budget-friendly with a modern alloy frame that handles tight corners and rough trail with ease—while still feeling snappy on the climbs. A 12-speed Shimano drivetrain and 120mm RockShox fork deliver all the gearing and comfort you need to keep pushing.
$1,499.99
What size am I?
Based on the bike's size chart. Your complimentary baseline fit in store dials in the rest.
Ship to store · free pickup, usually ready in 4–7 business days
Questions are welcome. No pressure, no bike jargon required.
- 30-day money-back guarantee Ride it. If it isn't right, bring it back.
- Free adjustments for life On every bike you buy from us.
- Complimentary baseline fit We set the bike up for your body.
What makes it special
Thoughtful details. Big possibilities.
01A better way to produce aluminum
Starting in 2024, we began removing high-emission aluminum from our manufacturing and replacing it with low-emission aluminum made with renewable energy. By October 2025, nearly every alloy bike we make - this one included - had made the switch, driving a major drop in our footprint.
02Shimano Deore
Shimano Deore brings even more adventure with a wider range of gear choices for the steep stuff, the fast stuff, and the fun. With smooth riding, improved chain stability, and sharp shifting, Deore heightens your mountain biking confidence and control so you can focus on the trail and enjoy the ride.
03Upgrade your pedals and love your bike more
Pedals are two of the five touchpoints that connect you with your bike, and even though this bike comes with a pair, upgrading to pedals that boost control and grip will greatly improve your ride. See the pedal guide and find the best pedals for your riding style. We recommend flat pedals for simple versatility.
For the detail-oriented
Let's talk bikes.
- Groupset Shimano Deore
- Frame Aluminum
- Suspension Hardtail, 120mm
- Wheels 29"
- Gears 1x12
- Weight 31.1 lb
Tap any group to see every part.
Frameset3
- Frame
- Alpha Platinum Aluminum, tapered head tube, internal routing, BSA 73, hidden rack and kickstand mounts, UDH, Boost148, 12mm thru axle
- Fork
- RockShox Judy Silver, Solo Air spring, TurnKey lockout, tapered steerer, 42mm offset, Boost110, 15mm Maxle Stealth, 120mm travel
- Headset
- Semi-integrated, loose ball bearing, 1-1/8'' top, 1.5'' bottom
Drivetrain7
- Shifters
- Shimano Deore M6200
- Rear derailleur
- Shimano Deore M6200, long cage
- Crank
- Shimano MT520, 32T, 55mm chainline, 170mm length
- Bottom bracket
- Shimano BB-MT501 BSA
- Cassette
- Shimano M6200, 10-51, 12 speed
- Chain
- Shimano Deore M6100, 12 speed
- Pedals
- Nylon platform
Wheels & tires7
- Front hub
- Shimano TC500 alloy, centerlock, 110x15mm thru axle
- Rear hub
- Shimano TC500 alloy, centerlock, 148x12mm thru axle
- Rims
- Bontrager Kovee, double-wall, Tubeless Ready, 28-hole, 23mm width, Presta valve
- Tires
- Bontrager Sainte-Anne Pro XR, Tubeless Ready, dual compound, aramid bead, 60 tpi, 29x2.20''
- Valves
- Bontrager TLR valve, 50mm
- Rim strip
- Bontrager TLR
- Rear axle
- Bontrager Switch thru axle
Brakes1
- Rotors
- Shimano RT10, centerlock, 160mm
L, XL: Shimano RT10, centerlock, 180mm
Cockpit & contact points6
- Handlebar
- S: Bontrager alloy, 31.8mm, 5mm rise, 720 width
M, ML, L, XL: Bontrager alloy, 31.8mm, 15mm rise, 750mm width - Stem
- S, M: Bontrager Comp, 31.8mm, Blendr compatible, 7 degree, 50mm length
ML: Bontrager Comp, 31.8mm, Blendr compatible, 7 degree, 60mm length
L: Bontrager Comp, 31.8mm, Blendr compatible, 7 degree, 70mm length
XL: Bontrager Comp, 31.8mm, Blendr compatible, 7 degree, 80mm length - Grips
- Trek Line Comp, nylon lock-on
- Saddle
- Verse Short, steel rails, 145mm width
- Seatpost
- S, M: TranzX JD-YSI34, 100mm travel, internal routing, 31.6mm, 350mm length
ML, L: TranzX JD-YSI34, 150mm travel, internal routing, 31.6mm, 456mm length
XL: TranzX JD-YSI34, 170mm travel, internal routing, 31.6mm, 500mm length - Seat collar
- Bolt-on, 36.4mm
Weight & limits6
- Weight
- M - 14.08 kg / 31.05 lbs (with TLR sealant, no tubes)
- Weight limit
- This bike has a maximum total weight limit (combined weight of bicycle, rider, and cargo) of 300 pounds (136 kg).
- Max tire size
- Frame: 29x2.40", Fork: See manufacturer
- Max rotor size
- Max brake rotor sizes - Frame: 180mm, Fork: see fork manufacturer
- Max chainring
- See service manual
- Max fork travel
- See service manual
Good to know4
- Complete Tubeless System Tubeless Ready rims and tires make it easy to ditch the tubes so you get better traction, fewer flats, and less weight. You're ready to roll right out of the box with the included TLR rim strips, valves, and sealant.
- Alpha Platinum Aluminum Our premium lightweight aluminum is continuously cold extruded and butted at multiple points, and hydroformed into sophisticated tube shapes for maximum strength and minimum weight.
- Internal dropper compatible Internal routing ports make it easy to add a dropper post upgrade that lets you lower your saddle on the fly so it's out of your way for tricky sections of trail.
- Blendr-compatible stem Bontrager Blendr stem technology lets you clip your gear directly to the stem for clean looks, maximum user friendliness.
Geometry & sizing.
Measurements in cm unless noted.
| Size | S | M | ML | L | XL |
|---|---|---|---|---|---|
| Rider height | 5'1"–5'5" | 5'5"–5'10" | 5'8"–5'11" | 5'10"–6'2" | 6'2"–6'5" |
| Seat tube (A on the drawing) | 39.0 | 42.0 | 44.0 | 46.0 | 51.0 |
| Seat tube angle (B on the drawing) | 71.0° | 71.5° | 72.0° | 72.5° | 73.0° |
| Head tube length (C on the drawing) | 9.0 | 9.0 | 9.0 | 9.0 | 12.0 |
| Head tube angle (D on the drawing) | 67.0° | 67.0° | 67.0° | 67.0° | 67.0° |
| Eff. top tube (E on the drawing) | 57.7 | 59.8 | 61.3 | 62.8 | 67.7 |
| BB height (F on the drawing) | 30.9 | 30.9 | 30.9 | 30.9 | 30.9 |
| BB drop (G on the drawing) | 6.4 | 6.4 | 6.4 | 6.4 | 6.4 |
| Chainstay length (H on the drawing) | 43.0 | 43.0 | 43.5 | 43.5 | 44.0 |
| Offset (I on the drawing) | 4.3 | 4.3 | 4.3 | 4.3 | 4.3 |
| Wheelbase (K on the drawing) | 111.0 | 113.5 | 115.5 | 117.1 | 122.7 |
| Standover (L on the drawing) | 74.7 | 74.9 | 75.8 | 76.3 | 79.1 |
| Reach (M on the drawing) | 40.5 | 43.0 | 44.5 | 46.0 | 50.0 |
| Stack (N on the drawing) | 61.4 | 61.4 | 61.4 | 61.4 | 64.2 |
| Wheel size | 29" | 29" | 29" | 29" | 29" |
| Eff. seat tube angle | 74.3° | 74.3° | 74.3° | 74.3° | 74.3° |
The Atlanta Cycling difference
The right bike is only the beginning.
Specs matter. But so does how a bike feels when you ride it. Our team is here to help you choose the right size, understand the details, and get comfortable before your first ride.
When you buy from Atlanta Cycling, you're not just getting a box with a bicycle in it. You're getting a 30-day money-back guarantee, a complimentary baseline fit, lifetime basic adjustments, and real people who want you to love every mile.
Four neighborhood stores. One shared passion.
Let's find your next adventure.
Ansley. Alpharetta. Roswell. Vinings. Stop by, take a test ride, ask questions, and meet the people who will be here long after your first ride.