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 AL Frameset
S (29" wheel) / Plasma Grey Pearl
$799.99
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Trek / Cross Country Mountain Bikes
Trek Procaliber AL Frameset
Race-ready, from the first pedal.
Procaliber Alloy Frameset is a versatile foundation for your next cross-country build. Its lightweight Alpha Platinum Aluminum frame and modern geometry balance efficiency and control for fast, confident riding. Designed for a 120mm fork, it’s ready to be built into a capable and responsive XC machine.
$799.99
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.
02Upgrade 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.
- Frame Aluminum
- Suspension Rigid
- Wheels 29"
- Weight 4.4 lb
Tap any group to see every part.
Frameset2
- Frame
- Alpha Platinum Aluminum, tapered head tube, internal routing, BSA 73, hidden rack and kickstand mounts, UDH, Boost148, 12mm thru axle
- Headset
- Semi-integrated, sealed cartridge bearing, alloy cups, 1-1/8'' top, 1.5'' bottom
Weight & limits6
- Weight
- M - 2.00 kg / 4.41 lbs
- 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, min 160mm
- Max chainring
- See service manual
- Max fork travel
- 130mm (540mm axle-to-crown)
Good to know1
- 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.
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.