Devinci Kobain A 29 SX 12s Complete Mountain Bike 2025
sku# 257363
Model Info
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Product Info
The Devinci Kobain A 29 SX 12s Complete Mountain Bike is a trail-hungry hardtail aimed at those who just want to air up the tires and hit the dirt. With a no-nonsense Marzocchi Bomber fork leading the way and no rear suspension to worry about, this Kobain smashes through the cost barrier with versatile components and capable trail geometry. It easily delivers more smiles per dollar than those carbon wonderbikes with five digit price tags. Do the math, it doesn't take long!
Product Details
Key Features
Aluminum Optimum G04 130mm Frame
Travel – 130mm Front
Wheel Size – 29"
Updated Geometry – Modern trail bike geometry featuring a longer reach and slacker head angle for confidently tackling technical sections, while steeper seat tube angle helps you motor up the climbs
Standard Boost 148 – Frames designed around Boost 148 offer ample tire clearance so you can take advantage of improved wheel stiffness.
Threaded Bottom Bracket – Threaded BB for headache-free removal and easy maintenance.
Specs
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Biking Type:
Mountain
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Biking Type
Mountain Mountain bikes are built for tackling rough terrain with frames made of durable materials like aluminum or carbon fiber, ensuring stability and maneuverability. They feature suspension to absorb impacts from rocks, roots, and drops, providing a smoother ride.
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Used For:
Trail
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Used For
Trail Trail bikes are the quintessential “mountain bikes.” If you’re heading into the woods expecting to do it all on two wheels – climbing, technical sections, AND fun descents – you’re looking for a trail bike.
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Suspension:
Hardtail
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Suspension
Hardtail As the name suggests, hardtail bikes feature a rigid frame with front suspension only. This means that the rear wheel lacks any form of suspension, hence the term "hardtail."
Hardtail mountain bikes are renowned for their efficiency in transferring power from the pedals to the rear wheel, making them excellent choices for climbing and maintaining speed on smoother trails or paved surfaces.
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Frame Material:
Aluminum Alloy
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Frame Material
Aluminum Alloy Aluminum is the second lightest material per cubic inch, after carbon, but it is significantly more affordable. It offers versatility, strength, and durability that works well in all trail disciplines.
- Gearing: 1 x 12
- Water Bottle Mounts: 1
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Fork:
Marzocchi Bomber Z2
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Fork
Marzocchi Bomber Z2 When mountain bike suspension first hit the ground, things were simpler. The best bike was the one you were riding; uphill, downhill, quick laps or all-day epics. The Bomber Z2 revives this purist mindset with a smooth and plush mountain bike fork that’s ready to ride out of the box.
Trail riders rejoice — your low maintenance, high durability solution is here, and it’s worthy of the Bomber name. Long live fun. Features a stiff 34mm chassis for precise steering and traction. - Stanchion Diameter (mm): 34
- Fork Travel (mm): 130
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Shifters:
SRAM SX Eagle
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Shifters
SRAM SX Eagle Compatible with ALL other SRAM Eagle™ drivetrains, this shift lever keeps the promise of a simple shift. SX Eagle™ means easy, intuitive shifting every time for every rider. -
Rear Derailleur:
SRAM SX Eagle, 12-Speed
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Rear Derailleur
SRAM SX Eagle, 12-Speed This new SX Eagle derailleur is your entry point to the SRAM Eagle Ecosystem. Sharing many features with the rest of the Eagle Ecosystem like the proven SRAM 1x-specific X-HORIZON™ body design, it can accommodate both 11-50T and 10-50T cassettes. The SX Eagle is cross compatible with much of the Eagle Ecosystem, making it easy to personalize and upgrading your ride when you are ready. -
Crankset:
SRAM SX Eagle, 30t
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Crankset
SRAM SX Eagle, 30t Multiple price-point options to allow you to hit the group price you need to build a better bike. Same chain retention performance as seen in all of the higher-level Eagle drivetrain cranks.
FEATURES- All new fully featured Eagle crankset. Now offering more Eagle™ options than ever before.
- Steel Eagle™ direct mount ring — as seen on NX Eagle™.
- For Powerspline cranks, use 118/73 Powerspline Bottom Brackets.
- Cassette: SRAM PG1210 Eagle, 11-50t
- Chain: SRAM SX Eagle, 12-Speed
- Pedals: Not Included
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Brake Levers:
SRAM Level T
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Brake Levers
SRAM Level T Level T capitalizes on the same trail-taming brake technology that conquered the 2015 World Mountain Bike Championships, to deliver a powerful and consistent XC and trail-optimized brake set that keeps your capital in the bank. This budget-minded, MatchMaker™ compatible brake set provides all the power of its siblings, keeping you in complete control. - Brake Calipers: SRAM Level T
- Rotors: SRAM Centerline | 180mm
- Stem: V2 Pro | B:35mm | L:50mm | 0°
- Saddle: Devinci
- Seatpost: TranzX Dropper 31.6mm, 1x Lever
- Hubs: Formula Hubs
- Rims: V2 Comp | 29mm inner | TR
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Front Tire:
Maxxis Minion DHF 2.6" | Dual, EXO, WT, TR
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Front Tire
Maxxis Minion DHF 2.6" | Dual, EXO, WT, TR With a tread design that deftly balances rolling speed with braking and cornering traction, it’s no wonder why the Minion DHF is one of the most imitated tires in mountain biking.- EXO: A cut and abrasion-resistant material added to the sidewalls.
- Wide Trail (WT): Optimizes the tire's tread layout and profile for today's modern, wider rims.
- Tubeless Ready (TR): Tubeless tires allow riders to run lower air pressures for improved traction, lower rolling resistance, and less chance of flatting.
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Rear Tire:
Maxxis Minion DHR II 2.6" | Dual, EXO, WT, TR
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Rear Tire
Maxxis Minion DHR II 2.6" | Dual, EXO, WT, TR With side knobs borrowed from the legendary Minion DHF, but widened to provide more support, the DHR II corners like no other. The center tread features ramped leading edges to improve acceleration and sipes to create a smooth transition when leaning the bike. Paddle-like knobs on the center tread dig in under hard braking and help keep the bike under control.- Dual Compound
- EXO: A cut and abrasion-resistant material added to the sidewalls.
- Wide Trail (WT): Optimizes the tire's tread layout and profile for today's modern, wider rims.
- Tubeless Ready (TR): Tubeless tires allow riders to run lower air pressures for improved traction, lower rolling resistance, and less chance of flatting.
- Warranty: Limited Lifetime
| Size | S | M | L | XL |
|---|---|---|---|---|
| Rider Height | 5'3" - 5'7" | 5'6" - 5'10" | 5'10" - 6'2" | 6'2" - 6'6" |
| Reach (mm) | 420 | 445 | 470 | 500 |
| Stack (mm) | 620 | 629 | 638 | 648 |
| Effective Top Tube (mm) | 586 | 614 | 641 | 674 |
| Seat Tube (mm) | 390 | 420 | 445 | 490 |
| Head Tube Angle (°) | 65.5 | 65.5 | 65.5 | 65.5 |
| Seat Tube Angle (°) | 75 | 75 | 75 | 75 |
| Chainstay Length (mm) | 435 | 435 | 435 | 435 |
| Bottom Bracket Height (mm) | 319 | 319 | 319 | 319 |
| Head Tube Length (mm) | 95 | 105 | 115 | 125 |
| Wheelbase (mm) | 1162 | 1191 | 1220 | 1255 |
| Standover Height (mm) | 723 | 723 | 7338 | 768 |
| Complete Weight (lbs) | 30.58 | |||
| Complete Weight (kg) | 13.87 | |||
| Wheel Size | 29" | 29" | 29" | 29" |