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Shop all Transition Shop sale TransitionLike bringing a howitzer to a knife fight, the Transition Sentinel Alloy NX Complete Mountain Bike decimates trails. Starting at the back, the Sentinel has wide and rigid Boost-148 spacing paired to 140mm's of RockShox sprung, Giddyup 2.OHHH suspension, combined with the plush Yari RC's Charger damper spearheading your good times. Finley tuned like Willy Nelson's guitar, the Transition Sentinel Alloy NX Complete Mountain Bike features a tailored Speed Balanced design that harnesses every pedal stroke of its 29" wheels and legendary SRAM 12-speed drivetrain. All this creates a rowdy ride that's sure to draw out anyone's inner mullet - whether it's long days of up and down or steep and loamy descents.
Speed Balanced Geometry – SBG ensures the bike maintains low speed agility, front wheel traction, and proper rider weight balance while actually increasing confidence in steep terrain and at high speeds. With SBG, a slacker head tube angle is combined with an all new reduced offset fork standard, preventing the front wheel from being too far in front of the rider. This improves front to rear weight distribution on the bike, which is often out of balance on long and slack bikes. One of SBG's greatest benefits is that it creates a confident steering feel that adapts to wheel speed. More stability when going fast, more agility on technical slow speed maneuvering as well as improved traction, control and confidence for any skill level of rider.
GiddyUp 2.0HH Suspension – Building upon the success of Transition's original GiddyUp suspension design, the new GiddyUp 2.0HH system has been refined for the modern two-wheel cowboy delivering a slightly firmer feel for more efficient pedaling, as well as more progressive travel that provides that extra little bit of bottom-out support when needed.
RockShox Deluxe RT Shock – How do you improve on the success of a rear shock that has received critical acclaim for its stellar performance and supple feel? It’s simple. You rewrite the rules, throw existing design constraints out the window, and focus solely on the best possible performance solution. We took the proven damping performance of our popular Monarch series and introduced it to our new metric-sized chassis. The result is truly Deluxe, ready to redefine your ride.
Shock Adjustments – External Rebound, 2 Position Compression (Open/Pedal)
Trunion Shock Mount
Full Water Bottle Storage
12x148 Boost Rear End
Rattle-Free Cable Routing
Molded Rubber Frame Protection
Rockshox Yari RC – Yari brings Lyrik’s acclaimed look and proven features – 35mm chassis, Fast Black upper tubes and new DebonAir™ air spring – to a wider audience. The new Charger RC damper uses a high performance, low maintenance cartridge design. The new DebonAir air spring eliminates friction from every single moving part, maintaining traction in more conditions than ever before.
Fork Adjustments – External Rebound, Low Speed Compression to Lockout, Air Spring Pressure
SRAM NX Eagle™ – It's how you start that matters. Whether you're discovering the mountain for the first time or you're an MTB lifer searching for a no-nonsense, no-worries 1x drivetrain, SRAM NX Eagle is ready for action and ready to take you there. NX Eagle brings you a wide range of gear choices engineered for simplicity and durability, so you can focus on what matters most-the ride ahead. German engineered and proudly bearing the SRAM Eagle stamp of approval, NX Eagle is ready to let the world know what real riding feels like.
SRAM Guide T Brakeset – Guide T brings the consistent performance that you have come to expect from SRAM's lightweight Guide four-piston caliper. Pair this with MatchMaker™ for a clean looking bar set-up, plus the ease of use with the Bleeding Edge™ drip-free bleed port and you have a smart budget minded brake that keeps you in control.
SRAM Centerline Rotors – The Centerline rotor was designed to keep the center of friction consistent throughout rotation, thereby minimizing vibration, offering consistent performance and a quiet ride.
Maxxis Minion DHF Front Tire – With a tread design that deftly balances rolling speed with braking and cornering traction, it's hard to find fault with the Minion DHF. That's probably why it's one of the most imitated tires in mountain biking. Whether riding local trails, a backcountry epic, racing enduro or World Cup downhill, there's a Minion DHF spec to meet your needs. The Minion DHF is available in trail, enduro, and downhill specs.
Maxxis DHR II Rear Tire – 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. Pair it with a Minion DHF up front for the ultimate aggressive trail riding tire combo! The Minion DHF is available in trail, enduro, and downhill specs.
KS Lev Integra Dropper Post – LEV INTEGRA’S internally routed cable significantly cleans up the look of your bike. With shifter cables, brake lines and lock out cables clamped and zip tied to your frame, mountain bike frames have begun to look like an IT guy’s dream. Clear the clutter while benefiting from legendary LEV technology.
Oversize Item – Ships within the continental U.S. for $69. HI and AK shipping available. Please call for details.
Size | S | M | L | XL | XXL |
---|---|---|---|---|---|
Reach (mm) | 425 | 450 | 475 | 500 | 515 |
Stack (mm) | 617 | 617 | 626 | 635 | 644 |
Effective Top Tube (mm) | 568 | 596 | 622 | 650 | 666 |
Seat Tube (mm) | 360 | 400 | 440 | 490 | 510 |
Head Tube Angle (°) | 64 | 64 | 64 | 64 | 64 |
Seat Tube Angle (°) | 77.5 | 76.8 | 76.3 | 75.8 | 75.5 |
Chainstay Length (mm) | 435 | 435 | 435 | 435 | 435 |
Bottom Bracket Height (mm) | 345 | 345 | 345 | 345 | 345 |
Bottom Bracket Drop (mm) | 30 | 30 | 30 | 30 | 30 |
Head Tube Length (mm) | 100 | 100 | 110 | 120 | 130 |
Wheelbase (mm) | 1361 | 1442 | 1523 | 1604 | 1685 |
Standover Height (mm) | 685 | 695 | 700 | 715 | 720 |