Frameset
Frame
Ari 801 27.5", 6061-T6 Premium Alloy, Fully Butted Tubing, Tapered Head Tube, BSA 73mm BB Shell, Boost 148 Thru-Axle Sliding Dropouts, Single Speed or Geared
Fork
Marzocchi Bomber Z1 Air, 27.5", 15x110, 100mm, Tapered
801 Elite 27.5"
The Ari 801 is a versatile gravity platform that spans a wide range of aggressive riding disciplines. While technical reviewers often associate the 801 series with its long-travel eMTB configuration—known as the Timp Peak—the core catalog also features robust, short-travel dirt jump builds designed for pump tracks and slopestyle lines. It suits riders who need a durable aluminum frame that can handle heavy impacts, whether they are charging technical enduro descents or executing precise aerial maneuvers. The current generation emphasizes structural stiffness and predictability. Across its various iterations, the 801 prioritizes a composed, stable feel over pure lightweight agility, ensuring the chassis remains quiet and controlled under heavy compressions and flat landings.
$1,499ARI2408BGen Current
Build
Size
| Stack | 595.7mm |
| Reach | 440mm |
| Top tube | 600mm |
| Headtube length | 120mm |
| Seat tube length | 320mm |
Fit and geometry
The 801 frame geometry is tailored to the specific wheel size and intended use. The dedicated dirt jump frames feature steep 73- to 75-degree seat tube angles and relatively slack 68- to 69-degree head tube angles, striking a balance between quick steering response and stability on steep jump faces.
Reach measurements sit at 410mm for the 26-inch model and 440mm for the 27.5-inch model, providing a compact front center that makes it easy to pull the bike up and maneuver in the air. The bottom bracket is kept low with a 22.5mm to 42mm drop, helping to anchor the rider's center of gravity during deep berms and heavy compressions.
Across the dirt jump builds, the cockpit is standardized with a 760mm wide alloy handlebar featuring a 50mm rise. This high front end encourages an upright, aggressive riding posture, giving the rider maximum leverage for pumping transitions and initiating spins. Short 165mm cranks are specced across all sizes to maximize clearance on the ramp and prevent pedal strikes in tight transitions.
Full specs
Groupset
Shift levers
N/A
Front derailleur
N/A
Rear derailleur
N/A
Cassette
Joy Tech Single Speed 16T
Chain
KMC Z1 Wide Single Speed
Crankset
SRAM Descendant 6k, 165mm Alloy
Bottom bracket
SRAM Dub BSA 73 MTB
Front brake
N/A
Rear brake
TRP Slate EVO HD-M807
Front rotor
N/A
Rear rotor
160mm rotor
Wheelset
Front wheel
Sun Ringle Duroc SD37 Comp, 27.5"
Rear wheel
Sun Ringle Duroc SD37 Comp, 27.5"
Front tire
Kenda Booster Pro SCT 120tpi, 27.5x2.4
Rear tire
Kenda Booster Pro SCT 120tpi, 27.5x2.4
Cockpit
Stem
Ari DJ 35 Alloy
Handlebars
Ari DJ 35, width 760mm, 50mm rise, 9 back sweep, 5 Up sweep
Saddle
WTB Solano Medium Steel
Seatpost
Ari Alloy DJ, 27.2x200mm
Grips
ODI Longneck Lock-On
Builds
The 801 dirt jump lineup is split across three aluminum builds, differentiated primarily by wheel size, gearing, and fork specification. The entry point is the 26-inch build, which utilizes a single-speed setup, a Manitou Circus Expert 100mm fork, and mechanical disc brakes. This configuration offers a traditional, low-maintenance dirt jump experience focused on durability and simplicity.
Moving up the ladder, the Elite 27.5" build transitions to larger wheels and upgrades the suspension to a Marzocchi Bomber Z1 Air fork. It retains a single-speed drivetrain but introduces a TRP Slate EVO hydraulic rear brake for improved stopping power and modulation.
At the top of the range, the Pro 27.5" build shifts the platform from a dedicated park bike to a versatile slopestyle or four-cross machine. It adds a 7-speed SRAM GX DH drivetrain and equips TRP Slate EVO hydraulic brakes on both the front and rear. All three builds roll on Kenda tires and utilize the same Ari DJ 35 alloy cockpit, keeping the core contact points consistent regardless of the chosen specification.
Reviews
Reviewers testing the long-travel eMTB variant of the 801 platform noted a distinct shift in character from the previous generation. The updated suspension layout effectively tunes out square-edge harshness, resulting in a chassis that feels highly composed on rough descents. Testers found the bike excels at maintaining momentum through heavy compressions, noting it is "by far the most comfortable bike" (YouTube) when hitting blind rollers and deep sand.
This stability comes with a slight weight penalty, trading some of the older model's trials-like agility for high-speed tracking. While the previous iteration was celebrated for the "ease in which it could jump and manual" (YouTube), the current frame is decidedly more planted.
Handling is heavily influenced by the chosen geometry settings. In a mullet configuration with short chainstays, the bike retains a rearward weight bias that makes it "so much fun" (YouTube) for flicking through bike park corners. However, testers cautioned that this setup can cause the front end to wander on steep climbs. Switching to a full 29-inch setup with a longer rear center balances the weight distribution, creating a highly capable machine for aggressive enduro lines.
