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Description
mountainbike asse Transition Sentinel Alloy Eagle 90 2026, Desert Dusk / Small MXTransition Sentinel Alloy Eagle 90 Built for riders who want one bike that can handle a wide range of terrain, the Sentinel Alloy combines 150mm rear travel, a 160mm fork, and mixed or 29 wheel compatibility. Designed for aggressive trail riding, it delivers a balanced ride that climbs efficiently while staying composed and confident on descents. Key highlights 160mm front 150mm rear travel built for aggressive trail and technical terrain. Horst link
Transition Sentinel Alloy Eagle 90
Built for riders who want one bike that can handle a wide range of terrain, the Sentinel Alloy combines 150mm rear travel, a 160mm fork, and mixed or 29” wheel compatibility. Designed for aggressive trail riding, it delivers a balanced ride that climbs efficiently while staying composed and confident on descents.
Key highlights
- 160mm front / 150mm rear travel built for aggressive trail and technical terrain.
- Horst-link suspension platform for traction, control, and mid-stroke support.
- Mixed or 29” wheel compatibility for tuning stability or agility.
- SRAM Eagle 90 Transmission for precise shifting under load and long-term durability.
Design and durability
- Alloy frame with 150mm rear travel.
- BSA threaded bottom bracket for reliability and serviceability.
- Internal frame storage with included bags.
- Sealed cable routing for durability and simplified maintenance.
Ride characteristics
- Balanced ride feel that climbs efficiently and descends with confidence.
- Strong mid-stroke support with good small bump sensitivity.
- Stable on steep and technical terrain without feeling overly heavy.
- Adaptable geometry allows riders to tune for speed or playfulness.
Fit, setup, and recommended upgrades
- We want every rider to get the most out of their new Sentinel.
- Local pickup customers: We can help dial in suspension, cockpit setup, and sag before your first ride.
- Shipped bikes: Bikes arrive professionally assembled and test ridden. Our staff can assist with setup questions if needed.
- Recommended upgrades: Pedals, tire inserts, and cockpit adjustments depending on terrain and riding style.
Transition Sentinel Alloy Eagle 90 – Full specifications
Frame
| Frame | Sentinel Alloy, 150mm rear travel |
Suspension
| Fork | RockShox Lyrik Ultimate (160mm) |
| Rear shock | RockShox Super Deluxe Ultimate (205x60mm) |
Wheels & Tires
| Rims | DT Swiss M 1900 Spline 30 |
| Hubs | DT Swiss 370 Ratchet LN |
| Spokes | DT Swiss Champion |
| Tires | Maxxis Assegai 3C MaxxGrip EXO+ (2.5) / Minion DHR II 3C MaxxTerra EXO+ (2.4) |
Drivetrain
| Shifter | SRAM Eagle 90 MMX |
| Rear derailleur | SRAM Eagle 90 |
| Crankset | SRAM Eagle 90 DUB (30t / 165mm) |
| Cassette | SRAM XS 1275 T-Type (10–52t) |
| Chain | SRAM GX Eagle Transmission |
Brakes
| Brakes | SRAM Maven Silver |
| Rotors | SRAM Centerline (180mm / 200mm) |
Cockpit
| Handlebar | Race Face Turbine (size-specific) |
| Stem | Race Face Aeffect R (40mm) |
| Seatpost | OneUp Dropper (size-specific) |
| Saddle | SDG Bel Air 3 |
Sizing and fit
Available in sizes XS through XL with mixed and 29” configurations depending on size.
| Small | Approx. 5’3” – 5’7” |
| Medium | Approx. 5’6” – 5’10” |
| Large | Approx. 5’9” – 6’1” |
| X-Large | Approx. 6’0” – 6’4” |
Frame geometry (mm and degrees)
Geometry shown is specific to the Sentinel Alloy platform. Values listed for both 29” and mixed wheel (MX) configurations.
29” Configuration
| Size | SM | MD | LG | XL |
|---|---|---|---|---|
| Reach | 430 | 455 | 480 | 505 |
| Stack | 615 | 621 | 633 | 642 |
| Top Tube (Effective) | 557 | 586 | 614 | 642 |
| Seat Tube Length | 360 | 390 | 430 | 460 |
| Seat Tube Angle (Effective) | 78.7° | 77.9° | 77.3° | 76.8° |
| Seat Tube Angle (Actual) | 70.8° | |||
| Head Tube Angle | 64° | |||
| Head Tube Length | 100 | 110 | 120 | 130 |
| Chainstay Length | 442 | 442 | 442 | 446 |
| Wheelbase | 1208 | 1237 | 1267 | 1300 |
| BB Drop | 25 | |||
| BB Height | 350 | |||
| Standover | 690 | 690 | 695 | 705 |
Mixed Wheel (MX) Configuration
| Size | SM | MD | LG | XL |
|---|---|---|---|---|
| Reach | 426 | 451 | 476 | 501 |
| Stack | 618 | 624 | 636 | 646 |
| Top Tube (Effective) | 557 | 586 | 614 | 642 |
| Seat Tube Length | 360 | 390 | 430 | 460 |
| Seat Tube Angle (Effective) | 78.2° | 77.5° | 76.9° | 76.4° |
| Seat Tube Angle (Actual) | 70.4° | |||
| Head Tube Angle | 63.6° | |||
| Head Tube Length | 100 | 110 | 120 | 130 |
| Chainstay Length | 440 | 440 | 440 | 444 |
| Wheelbase | 1208 | 1237 | 1267 | 1300 |
| BB Drop (F/R) | 31 / 11 | |||
| BB Height | 344 | |||
| Standover | 690 | 690 | 695 | 705 |
Component note: Specifications are subject to change at any time without notice.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
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★★★★★ 5
Micro-needling effect!
Color: Cyano Pink Spicule
Love how you can feel the micro-needling effect. I use this is my first application after toning and follow up with my serum and moisturizing routine. I do believe it gives my face a plump feeling, especially after gua sha. Will continue to use in my daily!
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Reviewed in the United States on May 21, 2026
★★★★★ 4
Helps my moisturizer absorb better
Color: Cyano Pink Spicule
I’m not quite sure if the product is fully working the way it is supposed to but I do like that when I use this and the apply moisturizer, it absorbs into my skin better and leaves my skin smoother and a lot less greasy. It’s easy to throw in my travel bag because of the size and you really only just need a little for each use so it goes a long way got the cost.
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Reviewed in the United States on May 31, 2026
★★★★★ 5
Amazing!
Color: Cyano Pink Spicule
This makes my skin feel so smooth. The appearance of my skin also is starting to look a lot better/younger. I've been using it for a week and a half already seeing changes.
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Reviewed in the United States on May 11, 2026
★★★★★ 3
Brightens, doesn't firm
Color: Cyano Pink Spicule
I've been using this for about a month now, every night on my face and neck, hoping to reduce the appearance of wrinkles and tighten some of my skin in that area that seems to be losing elasticity. On my neck, I've honestly noticed no real difference in 4 weeks of continued, consistent daily use. The skin on my face does seem brighter and somewhat less textured than before, but I haven't noticed any change in the issues I was hoping this would resolve, based on the claims and how it was marketed. So... not a bad addition to my skincare, but not the solution I was looking for.
Some have expressed concerns about it tingling or stinging... You can feel something when you apply it, it's almost like the feeling of static electricity, but it's very mild. I wouldn't let that stop you from giving it a try if you were concerned about it. It didn't cause my sensitive skin any breakouts or redness (although I was applying it at night before bed, so perhaps any redness was calmed overnight). I'm going to go ahead and finish the bottle, but based on these results, I probably won't repurchase.
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Reviewed in the United States on May 3, 2026
★★★★★ 4
Decent Product
Color: Cyano Pink Spicule
Not bad for the $ , it makes my skin feel good.
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Reviewed in the United States on May 24, 2026