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The new Transition Sentinel Carbon XT Complete Mountain Bike is a long-term love story between riders and their bikes. Building on the success of Transition's most sought after bike, it has a similar silhouette to its predecessor with subtle tweaks to improve ride performance and kinematics. Its lively geometry mirrors the sporty feel of the Smuggler and Spur, making it more dynamic and playful while maintaining the long travel power and stability you need on rough descents. Transition has moved with the times and added in-frame storage to this carbon frame version, with the all new B.O.O.M box ensuring you have the essentials ready when a flat or snack break strikes. The best bikes grow to integrate new technology, and that's what makes the Sentinel so great. Treat yourself to a trail bike that knows how to put pedal to the metal – this Sentinel is a dream.
Sentinel Carbon Frame
Travel – 160mm Front (150mm Compatible) / 150mm Rear
Wheel Size – 29" " (X-Small 27.5")
Refined Tuning and Kinematics Create a Lively, Progressive Platform – The new Sentinel may have a similar silhouette, but Transition have fully redesigned the frame with updated industrial design, features, and geometry to turn it up a notch. The leverage curve supports the bike higher in its travel, leaving plenty of room for big hits while keeping it light on its feet to remain nimble, and quick everywhere else. This gives it the lively, sporty attitude felt in the Spur and Smuggler without sacrificing its capabilities in rougher terrain. New size specific chainstays and a 64 degree headtube angle keep riders balanced with great traction on climbs and descents. All of this creates a bike that encourages new riders to push their limits, while ensuring a seasoned pro feels none. You will be ready to Send-it-all
B.O.O.M Box in Frame Storage with Supplied Frame Storage Bags on Carbon Models – . The B.O.O.M Box (Burritos Or Other Munchies) is positioned below and isolated from the water-bottle cage mount. This allows you to leave your bottle installed in your cage while easily getting into the B.O.O.M. Box, reducing clutter and fuss on the trail. It also prevents noise and potential failure since it doesn't place any weight on the door itself. With an easy access lever and two supplied gear bags, riders can stow away snacks, tools, a tube or anything else they want to have along for the ride.
Geo Adjust Chip – The lower shock mount has a geo-adjust flip chip to accommodate mixed wheels, and features a new design that allows water, dirt and debris to easily wash away. Change the attitude of the bike with a simple flip of a chip. High and Low settings give you two very usable geo settings to suit your riding style: High is comparable to most other companies' low settings so there's a high shred warning in effect!
New Cable Routing Ports – Cable ports on the side of the headtube allow for easy and simple cable routing with customizable routing for mechanical or wireless shifting as well as left or right rear brake routing. The new port stops cables from getting kinked during a crash and holds them tight to prevent rattling. If you aren’t using the port at all, simply cover it with the supplied insert to prevent dirt or water getting inside your frame, as well as keeping a clean aesthetic. These ports help improve the look and quality of the frame, while remaining functional and simple for maintenance.
Main Pivot Mud Guard – The Sentinel comes with a pre-installed mud guard to protect the main pivot area, improving the bearing life.
Size Specific Chainstays (XS 436, SM/MD 442, LG/XL/XXL 448) – The Sentinel has size-specific chainstay lengths to provide balanced handling and rider weight distribution across the range of sizes.
Increased Size Range (XS-XXL)
Size | XS | S | M | L | XL | XXL |
---|---|---|---|---|---|---|
Rider Height | 4'8" - 5'2" | 5' - 5'6" | 5''4" - 6' | 5'9" - 6'3" | 6 - 6'7" | 6'2" - 6'8" |
Reach (mm) | 415 | 430 | 455 | 480 | 505 | 530 |
Stack (mm) | 592 | 615 | 621 | 633 | 642 | 651 |
Effective Top Tube (mm) | 527 | 549 | 577 | 605 | 632 | 660 |
Seat Tube (mm) | 360 | 360 | 390 | 430 | 460 | 490 |
Head Tube Angle (°) | 64.0 | 64.0 | 64.0 | 64.0 | 64.0 | 64.0 |
Seat Tube Angle (°) | 79.8 | 79.3 | 78.7 | 78.3 | 77.9 | 77.6 |
Chainstay Length (mm) | 436 | 442 | 442 | 446 | 446 | 446 |
Bottom Bracket Height (mm) | 340 | 350 | 350 | 350 | 350 | 350 |
Bottom Bracket Drop (mm) | 15 | 25 | 25 | 25 | 25 | 25 |
Head Tube Length (mm) | 100 | 100 | 110 | 120 | 130 | 140 |
Wheelbase (mm) | 1173 | 1208 | 1237 | 1273 | 1302 | 1332 |
Complete Weight (lbs) | 32.9 | |||||
Complete Weight (kg) | 14.92 | |||||
Wheel Size | 27.5" (650b) | 29" | 29" | 29" | 29" | 29" |