Transition Spur Carbon Eagle 90 Complete Mountain Bike 2026
Model Info
Transition Spur Carbon Eagle 90 Complete Mountain Bike 2026
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Product Info
The Transition Spur Carbon Eagle 90 refuses to pick a lane, hitting that sweet spot where 120mm rear and 130mm front travel with progressive geometry means it's race-ready on climbing days but won't wimp out when the trail gets rowdy and demands real travel. Built for riders who think "cross-country" is boring and would rather have one bike that crushes everything from grinding out climbs to sending downhill sections without constantly second-guessing their equipment choice. The Carbon frame paired with SRAM Eagle 90 delivers performance across the entire spectrum, proving you don't need a quiver of bikes to handle whatever singletrack throws at you—the Spur just works.
Product Details
Key Features
Carbon Frame
Travel – 130mm Front / 120mm Rear
Wheel Size – 29"
C.H.I.P.S. – (Changes Height Independently from Progression Setting): Fine tune your geo with these simple and robust C.H.I.P.S. to adjust your headtube angle by .5 degree and BB height by 7mm.
B.O.O.M. Box – Internal frame storage to hold your burrito, or other munchies. Two supplied bags help store all the essentials for any ride.
Internal Cable Routing – Fully guided tubes and clean headtube cable ports make internal routing easy and keep things quiet.
Size Specific Chainstays – To ensure balance at every size, the Spur has a 435mm chainstay for SM/MD, and 440mm for L/XL.
Loam Hat – Built in protection keeps dirt and debris away from your main pivot, extending bearing life and reducing maintenance.
Hidden Linkage Hardware – The seatstay to rocker junction now has hidden hardware, further increasing the clean toptube to seatstay frame line, while also removing an area for debris to collect. Easy access from the inside now has deeper tool insertion to reduce stripping and rounding of the hardware.
Specs
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Biking Type:
Mountain
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Biking Type
Mountain Mountain bikes are built for tackling rough terrain with frames made of durable materials like aluminum or carbon fiber, ensuring stability and maneuverability. They feature suspension to absorb impacts from rocks, roots, and drops, providing a smoother ride.
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Used For:
Cross Country, Trail
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Used For
Cross Country With speed and pedaling efficiency in mind, cross country (XC) bikes are the lightest mountain bikes with the least suspension travel (typically 0 - 120mm). Trail Trail bikes are the quintessential “mountain bikes.” If you’re heading into the woods expecting to do it all on two wheels – climbing, technical sections, AND fun descents – you’re looking for a trail bike.
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Suspension:
Full Suspension
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Suspension
Full Suspension Engineered to tackle the most challenging terrain with enhanced comfort and control. Unlike hardtail bikes, full suspension bikes feature both front and rear suspension systems that allow the wheels to move independently from the frame.
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Frame Material:
Carbon
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Frame Material
Carbon Carbon is a composite frame material. Unlike metals, carbon is composed of fibrous strands woven into a grid and bonded with epoxy. Carbon is favored by many for its lightness and stiffness but its complexity in fabrication makes it the most expensive option.
- Gearing: 1 x 12
- Water Bottle Mounts: 2
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Fork:
Fox 34 SL Performance
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Fork
Fox 34 SL Performance The 34 SL brings never-before-seen XC capability into a full-width 34 chassis with up to 130mm of travel. Built for the most technical World Cup XC courses and demanding Downcountry riding, 34 SL adds more stiffness, more suppleness and minimal weight gain from the 34 Step-Cast fork.
Performance Series forks retain the same black anodized 7000 series aluminum upper tubes as Performance Elite, except paired with a GRIP damper. Push-button bleeders are not included but can be purchased separately. - Stanchion Diameter (mm): 34
- Fork Travel (mm): 130
- Rear Shock: FOX Float SL Performance Elite
- Rear Travel (mm): 120
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Shifters:
SRAM Eagle 90 T-Type
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Shifters
SRAM Eagle 90 T-Type The feel, look and shift quality of the Eagle 90 Shifter
allow you to ride in a whole new way. Optimized
cable pull with a revised lever position for maximum
control. With a new T-Type cable actuation ratio,
Eagle 90 offers a higher quality of shift than any
previous mechanical system.
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Rear Derailleur:
SRAM Eagle 90 T-Type, 12-Speed
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Rear Derailleur
SRAM Eagle 90 T-Type, 12-Speed The Eagle 90 Transmission derailleur is the definitive
answer to how good a cable actuated derailleur can
be. It features an all-new T-Type cable actuation
ratio to provide the most precise and crisp shifts
every time. Utilizing the same Full Mount design
as its electronic siblings, Eagle 90 is the strongest
mechanical derailleur we have ever produced. Not
only is it robust, but the derailleur body features
replaceable outer and inner parallelogram links,
skid plate, and a tool-free threaded cage assembly,
making it the most rebuildable derailleur in the Eagle
Transmission Ecosystem. -
Crankset:
SRAM Eagle 90 DUB T-Type, 32t
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Crankset
SRAM Eagle 90 DUB T-Type, 32t The new Eagle 90 crankset is a sleek, sturdy answer
to a growing demand for robust and aesthetically
pleasing components. And with availability down to
shorter 155mm and 160mm lengths, it gives riders
more freedom to build their bike, their way. Featuring
8-bolt chainring compatibility, the Eagle 90 crankset
includes a silver stamped steel T-Type chainring
with optional bashguards for durability and protection
on the trail. - Cassette: SRAM XS 1275 10-52t
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Chain:
SRAM GX Eagle T-Type Flattop, 12-Speed
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Chain
SRAM GX Eagle T-Type Flattop, 12-Speed The GX Eagle Transmission (T-Type) chain is the strongest SRAM has ever made. Specifically engineered to optimize Eagle Transmission, this all-new T-Type design features a unique flat top. In addition to this shape maximizing shifting performance and upgrading the aesthetics of any bike, it is developed specifically for the added torque loads of E-MTB thanks to its solid pins that give it incredible strength. - Bottom Bracket: DUB
- Pedals: Not Included
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Brake Levers:
SRAM Motive Silver
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Brake Levers
SRAM Motive Silver Born from the legacy of two of the winningest brakes of all-time, SRAM Motive Silver matches the capabilities of XC-race and trail bikes. Modern stealth aesthetics and a bold polished black finish pair with wireless superbikes, while a sculpted 4-piston caliper delivers tunable heavy-duty power for traction and control. Motive opens the aperture on what’s possible, giving you the boundless power of more confidence, and in the process redefining what’s required from a low-weight brake. Motive. New powers to go ahead. - Brake Calipers: SRAM Motive Silver
- Rotors: SRAM Centerline 180mm
- Headset: FSA No.42/48/ACB
- Stem: RaceFace Aeffect R 40mm
- Saddle: SDG Bel Air 3
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Seatpost:
OneUp Dropper
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Seatpost
OneUp Dropper Known for its no-nonsense smooth cable actuation, short overall length, and easy serviceability, the OneUp Dropper is a solid choice for dependable and customizable performance. - Wheelset: Custom
- Hubs: DT Swiss 350 Spline Ratchet 54
- Rims: DT Swiss XR 1700 Spline
- Spokes: DT Swiss Competition Straightpull
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Front Tire:
Maxxis Forekaster 2.4" | 3C MaxxTerra, EXO
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Front Tire
Maxxis Forekaster 2.4" | 3C MaxxTerra, EXO The Maxxis Forekaster is aimed squarely at modern short travel (100mm-130mm) trail bikes – aka the “downcountry” segment.- 3C MaxxTerra: A triple compound ideal for trail riding in all conditions - offers more traction than 3C MaxxSpeed, yet provides better treadwear and less rolling resistance than 3C MaxxGrip.
- EXO: A cut and abrasion-resistant material added to the sidewalls.
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Rear Tire:
Maxxis Forekaster 2.4" | 3C MaxxTerra, EXO
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Rear Tire
Maxxis Forekaster 2.4" | 3C MaxxTerra, EXO The Maxxis Forekaster is aimed squarely at modern short travel (100mm-130mm) trail bikes – aka the “downcountry” segment. Intended to be a "Goldilocks" tire, the Forekaster rolls faster than a Minion or even the Dissector but provides more predictable cornering, climbing and braking than the Aspen or Rekon.- 3C MaxxTerra: A triple compound ideal for trail riding in all conditions - offers more traction than 3C MaxxSpeed, yet provides better treadwear and less rolling resistance than 3C MaxxGrip.
- EXO: A cut and abrasion-resistant material added to the sidewalls.
- Warranty: Limited Lifetime (Frame)
| Size | S | M | L | XL |
| Rider Height | 5'0" - 5'6" | 5'4" - 6'0" | 5'9" - 6'3" | 6'0" - 6'7" |
| Reach (mm) | 425 | 455 | 480 | 505 |
| Stack (mm) | 612 | 621 | 630 | 644 |
| Effective Top Tube (mm) | 570 | 603 | 631 | 660 |
| Seat Tube (mm) | 360 | 390 | 430 | 460 |
| Head Tube Angle (°) | 65.5 | 65.5 | 65.5 | 65.5 |
| Seat Tube Angle (°) | 76.7 | 76.3 | 75.9 | 75.6 |
| Chainstay Length (mm) | 435 | 435 | 440 | 440 |
| Bottom Bracket Height (mm) | 328 | 328 | 328 | 328 |
| Bottom Bracket Drop (mm) | 47 | 47 | 47 | 47 |
| Head Tube Length (mm) | 100 | 110 | 120 | 135 |
| Wheelbase (mm) | 1163 | 1197 | 1231 | 1262 |
| Standover Height (mm) | 660 | 660 | 660 | 660 |
| Complete Weight (lbs) | 27.1 | |||
| Complete Weight (kg) | 12.29 | |||
| Wheel Size | 29" | 29" | 29" | 29" |