Transition Sentinel Carbon XT 2025 Bike

The Sentinel rides the lines between planted bottomless sender and playful, poppy trail pony. This leaves it right in the sweet spot, as we like to call it. It's versatile attitude helps riders excel and push their limits, making it the one bike most will need. Its intuitive nature is easy to get acquainted with; you'll find yourself sending lines, jumps, and maneuvers you always felt were beyond your ability. Where before you went around, now you go over. Where you pushed up, now you pedal. Where you rolled, now you boost. It's time to Send-It-All.

Features

Refining The Legend

The new Sentinel may have a similar silhouette, but we've 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.

Refined Details

We took a step back and looked for ways to improve the Sentinel, not just for the sake of change but for real, tangible steps forward that riders will feel and experience.

We added internal frame storage in the downtube of our carbon frame. 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 by not placing 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.

Cable Ports

Cable ports on the side of the headtube allow for easy and simple cable routing with customizable options for mechanical or wireless shifting as well as left or right rear brake setups. 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 from getting inside your frame and keep a clean aesthetic. These ports help improve the looks of the frame while remaining functional and simple for maintenance.

Fidlock Ready

To give you the most bottle options on any size bike, every Sentinel comes with a Fidlock base installed. Fidlock bottles give you more volume of water in a smaller space, allowing for a Fidlock 450ml bottle on our XS frame, up to 590ml on SM, and up to 750ml on MD-XXL. Bottles and all other Fidlock accessories sold separately.

Specifications

Frame and Forks

• Frame: Sentinel Carbon 150mm
• Forks: RockShox Lyrik Ultimate (160mm)
• Rear Shock: RockShox Super Deluxe Ultimate (205 x 60mm)
• Headset: FSA No.57E

Drivetrain

• Crankset: Shimano XT M8100 (30 Tooth / 165mm)
• Rear Derailleur: Shimano XT M8100 SGS 12 Speed
• Cassette: Shimano XT M8100 (10-51 Tooth)
• Chain: Shimano XT M8100

Braking/Shifting

• Front Brake: Shimano RT86, 203mm
• Rear Brake: Shimano RT86, 203mm
• Brake Levers: Shimano XT M8120 4 Piston
• Shifter Levers: Shimano XT M8100 iSpec EV

Wheels

• Rims: DT Swiss M 1900 Spline 30
• Front Hub: DT Swiss 370 Ratchet LN
• Rear Hub: DT Swiss 370 Ratchet LN
• Spokes: DT Swiss Champion
• Front Tyre: Maxxis Assegai 3C EXO+ (2.5")
• Rear Tyre: Maxxis Minion DHRII 3C EXO+ (2.4")

Finishing Kit

• Handlebars: ANVL Mandrel Alloy 35, X-Small / Small (800 x 20mm), Medium / Large / X-Large (800 x 30mm), XX-Large (800 x 40mm)
• Grips: ODI Elite Flow Lock-On
• Stem: ANVL Swage (40mm)
• Seatpost: OneUp Dropper Post, X-Small (120mm), Small (150mm), Medium (190mm), Large (210mm), X-Large / XX-Large (240mm)
• Saddle: SDG Bel Air 3