Transition Regulator CX XT Di2 e-MTB, side view
Photo: Transition
Full-power eMTBAll-mountain2026
Regulator CX range · 3 builds

TransitionRegulator CX XT Di2

€9,999RRP Germany (transitionbikes.com EU store), VAT incl.
Motor
Bosch Performance Line CX120 Nm; 750 W peak
Battery
600 WhBosch PowerTube; optional 250 Wh PowerMore range extender
Travel F / R
160 / 150 mm
Wheels
Mullet 29" / 27.5"
Frame
Carbon
Weight
21.9 kgManufacturer figure (size M)

All Bosch Performance Line CX eMTBs →

Overview

The Transition Regulator CX XT Di2 (€9,999) is the top build of the Regulator CX: Bosch Performance Line CX with 600 Wh, Fox 38 Factory Grip X2 fork, Fox Float X2 Factory shock, Shimano XT Di2 RD-M8260-SGS and TRP EVO Pro brakes. Claimed weight is 21.86 kg.

The Regulator CX is Transition's carbon all-mountain e-MTB on a dedicated mixed-wheel platform (29-inch front, 27.5-inch rear) with 150 mm of GiddyUp rear travel and a 160 mm fork. A flip chip offers High and Low geometry settings.

It uses the Bosch Performance Line CX motor (120 Nm, 750 W peak) with a 600 Wh PowerTube in the down tube; a 250 Wh Bosch PowerMore range extender takes capacity to 850 Wh. Control is via a Bosch Wireless Mini Remote and Kiox 400c display. Transition quotes 21.84 kg (size MD) for the Eagle 90 build.

  • Bosch Performance Line CX: 120 Nm, 750 W peak
  • 600 Wh battery, 850 Wh with PowerMore extender
  • 150 mm rear / 160 mm fork, mixed wheels
  • Carbon frame, High/Low flip chip

Gallery

Photos: Transition

Full specifications

Frame & suspension

Frame
Regulator CX Carbon 150mm
Wheel size
Mixed
Rear shock
Fox Float X2 Factory (205x60mm)
Fork
Fox 38 Factory Grip X2 (160mm)
Headset
FSA No.57E

E-system

Motor
Bosch Performance Line CX (BDU38)
Battery
Bosch PowerTube (600wh)
Display
Bosch Kiox 400c
Remote
Bosch Wireless Mini Remote

Drivetrain

Shifter
Shimano XT Di2 SW-M8250-R
Rear derailleur
Shimano XT Di2 RD-M8260-SGS
Cassette
Shimano XT CS-M8200 (10-51t)
Chain
Shimano XT CN-8100
Crankset
E*Thirteen Helix Race (155mm)
Chainring
E*Thirteen Helix Pro (34t)
Chainguide
Transition Integrated Top Guide

Brakes

Brakes
TRP EVO Pro
Rotors
TRP R1 2.3 (203mm)

Wheels & tyres

Rims
DT Swiss HX 1700
Spokes
DT Swiss Hybrid 1
Hubs
DT Swiss Hybrid 350 Ratchet DEG 60 DF - Anti Kickback
Front tyre
Schwalbe Magic Mary, Trail, Radial, Ultra Soft (2.5)
Rear tyre
Schwalbe Albert, Trail, Radial, Soft (2.5)

Cockpit

Stem
Race Face Turbine R (40mm)
Handlebar
Race Face Era SM(780x20) MD(780x40) LG/XL(800x40)
Grips
ODI Elite Flow Lock-On
Saddle
SDG Bel Air 3 LUX
Seatpost
Fox Transfer Factory SM(150mm) MD(180mm) LG(210mm) XL(240mm)

Other

Included
Bosch Charger, Shimano Di2 Charger, Tubeless Valves & Sealant
Weight
48.2 lbs / 21.86 kg (Size MD)

Manufacturer specification — source. Specs and prices can change; check with the brand or your dealer.

Regulator CX geometry

SizeSMLXL
AReach425 mm / 420 mm455 mm / 450 mm480 mm / 475 mm510 mm / 505 mm
BStack623 mm / 628 mm632 mm / 637 mm641 mm / 646 mm651 mm / 656 mm
CEffective Top Tube Length551 mm / 554 mm583 mm / 587 mm610 mm / 615 mm643 mm / 648 mm
DSeat Tube Length375 mm400 mm440 mm470 mm
EEffective Seat Tube Angle78.8° / 78.3°78.5° / 78.0°78.2° / 77.7°77.9° / 77.4°
Saddle Height For Effective Seat Tube Angle600°660°720°780°
Actual Seat Tube Angle75° / 74.5°75° / 74.5°75° / 74.5°75° / 74.5°
Seat Tube Offset At Bottom Bracket41 mm41 mm41 mm41 mm
FHead Tube Length105 mm115 mm125 mm135 mm
GHead Tube Angle64.5° / 64.0°64.5° / 64.0°64.5° / 64.0°64.5° / 64.0°
HChainstay Length442 mm / 444 mm442 mm / 444 mm448 mm / 450 mm448 mm / 450 mm
IWheelbase1201 mm / 1203 mm1235 mm / 1237 mm1271 mm / 1273 mm1305 mm / 1307 mm
JBottom Bracket Drop (Front)20 mm / 25 mm20 mm / 25 mm20 mm / 25 mm20 mm / 25 mm
JBottom Bracket Drop (Rear)0 mm / 5 mm0 mm / 5 mm0 mm / 5 mm0 mm / 5 mm
KEstimated Bottom Bracket Height350 mm / 345 mm350 mm / 345 mm350 mm / 345 mm350 mm / 345 mm

Where two values are given: High / Low flip-chip position. Source: Transition.

Regulator CX: builds compared

Regulator CX range →
Regulator CX Eagle 70Regulator CX Eagle 90Regulator CX XT Di2
Price€7,599€8,999€9,999
FrameCarbonCarbonCarbon
ForkRockShox Domain Gold RC (160mm)RockShox ZEB Ultimate (160mm)Fox 38 Factory Grip X2 (160mm)
ShockRockShox SuperDeluxe Base (205x60mm)RockShox SuperDeluxe Ultimate (205x60mm)Fox Float X2 Factory (205x60mm)
DerailleurSRAM Eagle 70SRAM Eagle 90Shimano XT Di2 RD-M8260-SGS
BrakesSRAM Maven BaseSRAM Maven SilverTRP EVO Pro
WheelsWTB ST i30DT Swiss H 1900 Spline 30DT Swiss HX 1700
DisplayBosch System Controller (USA/Canada) Bosch Kiox 400c (International)Bosch Kiox 400cBosch Kiox 400c
Weight—21.8 kg21.9 kg

Regulator CX XT Di2: FAQ

How much does the Transition Regulator CX XT Di2 cost?

€9,999 (RRP Germany (transitionbikes.com EU store), VAT incl.). The Regulator CX range runs from €7,599 (Regulator CX Eagle 70) to €9,999 (Regulator CX XT Di2). Prices vary by country and dealer.

How much does the Transition Regulator CX XT Di2 weigh?

Transition quotes 21.9 kg. The lightest Regulator CX build is the Regulator CX Eagle 90 at 21.8 kg.

What motor and battery does the Transition Regulator CX XT Di2 have?

Bosch Performance Line CX (120 Nm; 750 W peak). 600 Wh battery — bosch PowerTube; optional 250 Wh PowerMore range extender.

How much suspension travel does the Transition Regulator CX XT Di2 have?

160 mm at the fork and 150 mm at the rear, on mullet 29" / 27.5" wheels.

What sizes does the Transition Regulator CX XT Di2 come in?

S, M, L, XL. Check the geometry table to compare reach and stack between sizes.

What is the difference between the Regulator CX XT Di2 and the Regulator CX Eagle 90?

They share the Regulator CX frame platform and motor; the differences are in the parts — fork: Fox 38 Factory Grip X2 (160mm) vs RockShox ZEB Ultimate (160mm); shock: Fox Float X2 Factory (205x60mm) vs RockShox SuperDeluxe Ultimate (205x60mm); derailleur: Shimano XT Di2 RD-M8260-SGS vs SRAM Eagle 90; claimed weight: 21.9 kg vs 21.8 kg; price: €9,999 vs €8,999.

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