Transition Regulator CX Eagle 90 (2026)
Built for aggressive all-mountain riding, the Regulator CX combines a carbon chassis, 150mm rear / 160mm front travel, and mixed-wheel geometry designed for agility and control. Designed for everything from steep technical terrain to long backcountry rides, it delivers powerful climbing assistance with a natural ride feel while maintaining a more refined, higher-performance build for demanding riders.
Key highlights
- 160mm front / 150mm rear travel built for steep, technical trails and high-speed descending.
- GiddyUp suspension platform for traction, composure, and consistent support.
- Mixed wheel setup (29"/27.5") for stability up front and agility out back.
- SRAM Eagle 90 Transmission for precise, durable shifting under load.
Design and durability
- Carbon frame with 150mm rear travel.
- UDH compatible with SRAM Transmission drivetrains and integrated protection.
- Size-specific geometry for consistent handling across all sizes.
- Transition lifetime frame warranty.
Ride characteristics
- More composed and controlled at speed with upgraded suspension.
- Balanced leverage curve keeps traction under braking and through rough terrain.
- Bosch CX motor delivers powerful but controlled climbing assistance.
- Refined build kit improves overall ride feel on longer, more demanding rides.
Fit, setup, and recommended upgrades
- We want every rider to get the most out of their new Regulator CX.
- Local pickup customers: We can help dial in suspension sag, rebound, and cockpit setup before your first ride.
- Shipped bikes: Bikes arrive professionally assembled and test ridden. Our staff can assist with setup questions if needed.
- Recommended upgrades: Many riders choose pedals, tire inserts, upgraded tires, or larger rotors to match local trail conditions.
Transition Regulator CX Eagle 90 – Full specifications
Frame
| Frame | Regulator CX Carbon, 150mm travel, mixed wheel |
Suspension
| Fork | RockShox ZEB Ultimate, 160mm |
| Rear shock | RockShox SuperDeluxe Ultimate, 205x60mm |
Wheels & tires
| Rims | DT Swiss H 1900 Spline 30 |
| Front hub | DT Swiss Hybrid 370 |
| Rear hub | DT Swiss Hybrid 370 |
| Tires | Maxxis Assegai 2.5 (Front) / Maxxis Minion DHRII 2.4 (Rear) |
Drivetrain
| Shifter | SRAM Eagle 90 MMX |
| Rear derailleur | SRAM Eagle 90 Transmission |
| Crankset | SRAM Eagle 90, 150mm |
| Cassette | SRAM XS 1275, 10-52t |
| Chain | SRAM GX Eagle Transmission |
Brakes
| Brakes | SRAM Maven Silver |
| Rotors | SRAM Centerline, 200mm |
Cockpit
| Handlebar | Race Face Turbine |
| Stem | Race Face Aeffect R, 40mm |
| Seatpost | OneUp Dropper Post (size specific) |
| Saddle | SDG Bel Air 3 |
Sizing and fit
Height ranges are based on Transition’s recommended sizing chart.
| Frame size | Recommended height |
|---|---|
| SM | 5'3" – 5'7" |
| MD | 5'7" – 5'10" |
| LG | 5'10" – 6'1" |
| XL | 6'1" – 6'4" |
Frame geometry (mm and degrees)
| Size | SM | MD | LG | XL |
|---|---|---|---|---|
| Reach | 425 | 455 | 480 | 510 |
| Stack | 623 | 632 | 641 | 651 |
| Head angle | 64.5° | |||
| Seat angle | 78.8° | 78.5° | 78.2° | 77.9° |
| Chainstay | 442 | 442 | 448 | 448 |
| Wheelbase | 1201 | 1235 | 1271 | 1305 |
Component note: Specifications are subject to change without notice.
