As one of the first long travel 29ers to actually function, the Transition Sentinel Carbon XT Complete Mountain Bike is set up for victory, especially when dealing with steep terrain. Starting at the back, the Sentinel has wide and rigid Boost-148 spacing paired to 150mm of RockShox cushion with refined Giddyup 2.OHHH suspension. Up front, the brilliant Lyrik Ultimate spearheads good times from ascent to descent, along with a tailored Speed Balanced design that harnesses every pedal stroke of its 29" wheels and SRAM GX Eagle™ 12-speed drivetrain. All this creates a solid ride that's sure to draw out anyone's wild child - whether it's long days of pedaling up and down or steep, loamy descents.
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.
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.
12 x 148mm Boost Rear End
Full Water Bottle Storage
Rattle-Free Cable Routing
All Carbon Construction – Full carbon frame made from premium Japanese Toray fiber with a tailored blend of high quality materials to create a balance of frame stiffness, strength, and impact toughness. A new molding process makes for sharper frame lines and tighter edge radius controls with less wasted material.
Badass Bearings – EnduroMAX suspension pivot specific bearings come in standard sizes that are readily available worldwide.
Fox Float X2 Performance Rear Shock – The award-winning, gravity-defying air shock is totally redesigned for 2021. With a laundry list of advanced features, the X2 is ready to clean house. This is the air shock that will help you say goodbye to coils.
Shock Adjustments – Air Spring Pressure / 2-Position Open/Firm Lever / Rebound
Fork Adjustments – FIT GRIP 3-Position Lever (Open, Medium, Firm) | Rebound Adjust | Air Spring Pressure
Fox 36 Float Performance – Performance forks retain the same black anodized 7000 series aluminum upper tubes as Performance Elite, but have a different damper (FIT GRIP) with fewer adjustments.
Shimano XT – Shimano XT is the original mountain bike groupset trusted by generations of mountain bikers around the world. Whatever the trail, whatever you ride, XT is your solution for mountain biking today. Reliable shifting. Superior braking. Intuitive maintenance. XT is the high performance workhorse you can count on.
Shimano RT86 Rotors | 203mm
Shimano XT M8120 – Shimano XT M8120 features consistent braking performance and reliable stopping power in all conditions. The 4-piston caliper instills greater downhill confidence and control.
Maxxis Assegai Front Tire – The Maxxis Assegai tire is named after the iron-tipped spear used by the Zulu people of South Africa. Greg Minnaar, a native of South Africa, thought it was a fitting name for a tire ready to do battle on the mountain. The tall knobs punch through dust and loam to find traction, but also offer support and confidence on wet roots and rocks. While other tires excel only in certain conditions, the new Maxxis Assegai is built to go fast everywhere.
Maxxis Minion 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!
Stan's NoTubes Flow S1 Wheelset – Burly enough to handle the toughest of trails yet light enough to pedal all day, the Flow S1 is up for any challenge. Developed from rims ridden in Red Bull Rampage and raced on the World Cup DH circuit for years, the S1 is now ready for action. With a 1.6mm deeper profile and reinforced rim walls the new Flow S1 offers greater impact strength, for an even wider range of use, with only a minor weight gain. Strong and light 6061 alloy rims, stainless steel rim eyelets, and easily replaceable standard spokes mean the Flow S1 is built to last. Combined with faster-engaging, CNC-machined Neo hubs, the Flow S1 is the ultimate trail, all-mountain, and enduro wheelset.
OneUp Dropper Post – The OneUp Dropper has the shortest stack height and shortest total length of any post, meaning your seat will go as low as possible. With class-leading specs and innovative features, this post is easily serviceable and extensively tuneable.
Price and Spec Subject to Change
Size | S | M | L | XL | XXL |
---|---|---|---|---|---|
Top Tube (mm) | 552 | 585 | 613 | 641 | 665 |
Seat Tube (mm) | 350 | 390 | 430 | 460 | 490 |
Stack (mm) | 613 | 622 | 631 | 640 | 649 |
Reach (mm) | 420 | 450 | 476 | 501 | 521 |
Standover Height (mm) | 671 | 688 | 700 | 712 | 722 |
Head Tube Angle (°) | 63.6 | 63.6 | 63.6 | 63.6 | 63.6 |
Seat Tube Angle (°) | 70.8 | 70.8 | 70.8 | 70.8 | 70.8 |
Chainstay Length (mm) | 440 | 440 | 440 | 440 | 346 |
Bottom Bracket Height (mm) | 346 | 346 | 346 | 346 | 346 |
Bottom Bracket Drop (mm) | 29 | 29 | 29 | 29 | 29 |
Head Tube Length (mm) | 100 | 110 | 120 | 130 | 140 |
Wheelbase (mm) | 1199 | 1233 | 1263 | 1292 | 1316 |
Wheel Size | 29" | 29" | 29" | 29" | 29" |