Description
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 deliverspowerful 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.
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