Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
Transition
2025 Transition Sentinel Carbon XO AXS
Previous used estimate
$5,426 - $5,582
Actual value depends on condition, size, and local demand.
Value Guide market data · 2025 Transition Sentinel Carbon XO AXS
12-month projected trend
18%
Direction and magnitude, not judgment
vs. category average
10%
Drops faster than category avg
Price over time - 2025 Transition Sentinel Carbon XO AXS
Values based on actual sales data. Enter your bike's specifics to get a precise valuation.
All Sentinel model years
Compare Sentinel Carbon XO AXS models
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Overview
About this bike
SEND-IT-ALL ON THE ALL NEW SENTINEL A bike that says yes to every trail, every ride and begs for more. 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. 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. Wheel Size: X-Small: 27.5-inch Small - XX-Large: 29-inch
Specifications
- Category
- Mountain
- Component Fork
- Fox Float 36 Grip X2 Factory (160mm)
- Component Hubs
- DT Swiss 350 Classic DEG
- Component Rims
- DT Swiss XM 481
- Component Size
- X-Small, Small, Medium, Large, X-Large, XX-Large
- Component Stem
- ANVL Swage (40mm)
- Product Family
- Sentinel
- Component Chain
- SRAM XO Eagle Transmission
- Component Color
- Deep Purple, Glacier White, Graphite Grey
- Component Frame
- Sentinel Carbon 150mm
- Component Brakes
- SRAM Maven Silver
- Component Rotors
- SRAM HS2 (200/180mm)
- Component Saddle
- SDG Bel Air 3 LUX
- Component Spokes
- DT Swiss Competition
- Component Headset
- FSA No.57E
- Component Crankset
- SRAM XO Eagle DUB T-Type (30t/165mm)
- Component Seatpost
- Fox Transfer Factory
- Component Shifters
- SRAM POD Ultimate Bridge MMX
- Component Handlebar
- OneUp Carbon Bar XS/SM (800x20mm) MD/LG/XL/XXL (800x35mm)
- Component Rear Tire
- Front: Maxxis Assegai 3C EXO+ (2.5) Rear: Maxxis Minion DHRII 3C EXO+ (2.4)
- Component Front Tire
- Front: Maxxis Assegai 3C EXO+ (2.5) Rear: Maxxis Minion DHRII 3C EXO+ (2.4)
- Component Rear Shock
- Fox Float X Factory (205x60mm)
- Component Tape Grips
- ODI Elite Flow Lock-On
- Component Wheel Size
- 27.5-inch, 29-inch
- Component Rear Derailleur
- SRAM XO AXS Eagle Transmission
- Component Cassette Freewheel
- SRAM XS 1295 T-Type (10-52t)
- Rear Shock
- Fox Float X Factory (205x60mm)
- Hubs
- DT Swiss 350 Classic DEG
- Rims
- DT Swiss XM 481
- Crankset
- SRAM XO Eagle DUB T-Type (30t/165mm)
- Chain
- SRAM XO Eagle Transmission
- Seatpost
- Fox Transfer Factory
- Saddle
- SDG Bel Air 3 LUX
- Handlebar
- OneUp Carbon Bar XS/SM (800x20mm) MD/LG/XL/XXL (800x35mm)
- Headset
- FSA No.57E
- Rear Derailleur
- SRAM XO AXS Eagle Transmission
- Rear Tire
- Front: Maxxis Assegai 3C EXO+ (2.5) Rear: Maxxis Minion DHRII 3C EXO+ (2.4)
- Stem
- ANVL Swage (40mm)
- Brakes
- SRAM Maven Silver
- Fork
- Fox Float 36 Grip X2 Factory (160mm)
- Frame
- Sentinel Carbon 150mm
- Shifters
- SRAM POD Ultimate Bridge MMX
- Tape/Grips
- ODI Elite Flow Lock-On
- Color
- Graphite Grey
- Size
- XX-Large
- Wheel Size
- 29-inch
- Spokes
- DT Swiss Competition
- Cassette/Freewheel
- SRAM XS 1295 T-Type (10-52t)
- Rotors
- SRAM HS2 (200/180mm)
- Front Tire
- Front: Maxxis Assegai 3C EXO+ (2.5) Rear: Maxxis Minion DHRII 3C EXO+ (2.4)
What to check when buying used
Inspection
Drivetrain wear
Check chain stretch, cassette teeth, chainrings, and shifting under load before negotiating price.
Inspection
Service history
Ask for service records covering bearings, brakes, drivetrain, and any frame or fork warranty work.
Inspection
Suspension service
Confirm fork and rear shock service intervals and check pivot bearings for play.