2025 Transition Sentinel Alloy Deore Bike
- Free Domestic shipping
- In stock, ready to ship
- Backordered, shipping soon
Key Features
- Transition Sentinel Hydroformed Aluminum V3 frame (2025) with 150mm of GiddyUp Horst-Link rear suspension.
- Performance suspension package: RockShox Lyrik Select+ fork (160mm) and Super Deluxe Select+ shock.
- Premium Shimano Deore XT 1x12-speed drivetrain and powerful XT M8120 4-piston hydraulic disc brakes.
- High-performance braking with Shimano RT86 203mm Ice-Tech rotors.
- Adjustable wheel sizing: XS uses 27.5", while SM-XXL can be run 29" or Mixed ("Mullet") via a flip chip.
- Aggressive Maxxis tire pairing: Assegai (front, 2.5") and Minion DHR II (rear, 2.4") with EXO+ casing.
- Race-ready DT Swiss M 1900 Spline 30 alloy wheelset.
- Features a long-travel OneUp dropper post (up to 240mm drop on XL/XXL).
- Includes a pre-installed integrated mud guard and Fidlock Twist Bike Base bottle mount.
Full Specifications
| Product | Transition Sentinel Alloy Deore XT Bike |
|---|---|
| Model Year | 2025 |
| Intended Use | Enduro / All-Mountain |
| Rider | Unisex |
| Frame Material | Aluminum |
| Frame Material Details | Molded chainstay, seatstay, and lower down tube protection (V3 version) |
| Rear Travel | 150mm (Upgradable to 160mm with 65mm stroke shock) |
| Rear Shock | RockShox Super Deluxe Select+, 205mm x 60mm stroke |
| Fork | RockShox Lyrik Select+, 35mm stanchions |
| Fork Travel | 160mm |
| Head Tube Diameter | Tapered, 1.125" top, 1.5" bottom |
| Headset | FSA No.57E, ZS44 upper, ZS56 lower |
| Handlebar | ANVL Mandrel Alloy, 800mm width, 35mm clamp Rise: 20mm (XS/SM), 30mm (MD-XL), 40mm (XXL) |
| Stem | ANVL Swage, 40mm length, 35mm bar clamp |
| Grips | ODI Elite Flow, lock-on |
| Brakes | Shimano Deore XT M8120, 4-piston |
| Rotors | Shimano RT86, 203mm |
| Brake Levers | Shimano Deore XT M8100 |
| Drivetrain | 1x |
| Shifters | Shimano Deore XT M8100, 12-speed, I-SPEC EV |
| Front Derailleur | None |
| Rear Derailleur | Shimano Deore XT M8100, 12-speed, SGS cage |
| ISCG Tabs | ISCG05 |
| Chainguide | None |
| Cranks | Shimano Deore XT M8100 Alloy, 165mm length |
| Chainrings | Shimano Deore XT M8100, 30 tooth |
| Bottom Bracket | 73mm English/BSA threaded |
| Pedals | None |
| Chain | Shimano Deore XT M8100, 12-speed |
| Cassette | Shimano Deore XT M8100, 10-51 tooth, 12-speed |
| Rims | DT Swiss M 1900 Spline 30 Alloy, 30mm inner width |
| Hubs | DT Swiss 370 (15 x 110mm front), Ratchet LN freehub (12 x 148mm rear) with MICRO SPLINE driver |
| Spokes | DT Swiss Champion |
| Tires | Front: Maxxis Assegai, 3C MaxxTerra, EXO+, 2.5" Rear: Maxxis Minion DHR II, 3C MaxxTerra, EXO+, 2.4" |
| Saddle | SDG Bel-Air V3 |
| Seatpost | OneUp dropper Drop: 120mm (XS), 150mm (SM), 190mm (MD), 210mm (LG), 240mm (XL/XXL) |
| Seatpost Diameter | 31.6mm |
| Seatpost Clamp | Single bolt, 34.9mm |
| Rear Dropout / Hub Dimensions | 12mm x 148mm (Boost) |
| Max. Tire Size | 2.5" |
| Bottle Cage Mounts | One inside front triangle, plus accessory mounts under top tube |
| Colors | Deep Purple, Graphite Grey, Glacier White |
| Warranty | Lifetime frame |
| Weight | 34 lb 5.6 oz (15580 g) - Size MD |
| Miscellaneous |
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Geometry
| Size (Setting) | XS 27.5" | SM (29", MX) | MD (29", MX) | LG (29", MX) | XL (29", MX) | XXL (29", MX) |
|---|---|---|---|---|---|---|
| Top Tube Length | 534mm | 557mm | 586mm | 614mm | 642mm | 670mm |
| Head Tube Angle | 64.0° | 64.0°, 63.6° | 64.0°, 63.6° | 64.0°, 63.6° | 64.0°, 63.6° | 64.0°, 63.6° |
| Head Tube Length | 100mm | 100mm | 110mm | 120mm | 130mm | 140mm |
| Seat Tube Angle | 79.2° | 78.7°, 78.2° | 77.9°, 77.5° | 77.3°, 76.9° | 76.8°, 76.4° | 76.5°, 76.2° |
| Seat Tube Length | 360mm | 360mm | 390mm | 430mm | 460mm | 490mm |
| Bottom Bracket Height | 340mm (15mm drop) | 350mm (25mm drop), 344mm (11mm drop) | 350mm (25mm drop), 344mm (11mm drop) | 350mm (25mm drop), 344mm (11mm drop) | 350mm (25mm drop), 344mm (11mm drop) | 350mm (25mm drop), 344mm (11mm drop) |
| Chainstay Length | 434mm | 442mm, 440mm | 442mm, 440mm | 446mm, 444mm | 446mm, 444mm | 446mm, 444mm |
| Wheelbase | 1171mm | 1208mm | 1237mm | 1271mm | 1300mm | 1330mm |
| Reach | 415mm | 430mm, 426mm | 455mm, 451mm | 480mm, 476mm | 505mm, 501mm | 530mm, 526mm |
| Stack | 592mm | 615mm, 618mm | 621mm, 624mm | 633mm, 636mm | 642mm, 646mm | 651mm, 655mm |
| Additional Info |
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Shipping Policy
Components:
All component items (wheels, drivetrains, suspension, brakes, etc.) ship within 1–4 business days of purchase.
Bicycles:
Complete bikes typically ship within 2–3 weeks due to build, tuning, and inspection times. You will receive tracking information as soon as your order is ready to ship.
Riding Gear & Apparel:
Riding gear and apparel orders (helmets, jerseys, gloves, etc.) ship within 1–3 business days.
Returns & Exchanges:
If you received the wrong size or wish to exchange an item, it must be returned in original condition—unused, uninstalled, and with all packaging intact.
For full details, please see our Refund Policy before initiating a return.
