2026 Transition Regulator SX Carbon XT E-Bike

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Transition

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Specifications

Product

Transition Regulator SX Carbon XT E-Bike

Model Year

2026

Intended Use

Enduro / All-Mountain

Rider

Unisex

Sizes and Geometry

View Full Geometry

Size	SM	MD	LG	XL
Top Tube Length	551mm	583mm	610mm	643mm
Head Tube Angle	64.5°	64.5°	64.5°	64.5°
Head Tube Length	105mm	115mm	125mm	135mm
Seat Tube Angle	78.8°	78.5°	78.2°	77.9°
Seat Tube Length	375mm	400mm	440mm	470mm
Bottom Bracket Height	350mm	350mm	350mm	350mm
Chainstay Length	442mm	442mm	448mm	448mm
Wheelbase	1201mm	1235mm	1271mm	1305mm
Reach	425mm	455mm	480mm	510mm
Stack	623mm	632mm	641mm	651mm
Additional Info	• Mixed ("Mullet") wheels: 29" front, 27.5" rear • All specifications listed are with 160mm travel fork with 579mm axle-to-crown length and 44mm offset • Saddle heights for effective seat tube angles: 600mm (SM), 660mm (MD), 720mm (LG), 780mm (XL) • Seat tube offet at bottom bracket: 41mm (all sizes) • Bottom bracket drop, from front/rear axles: 25/5mm

Sizes Additional Info

• Mixed ("Mullet") wheels: 29" front, 27.5" rear
• All specifications listed are with 160mm travel fork with 579mm axle-to-crown length and 44mm offset
• Saddle heights for effective seat tube angles: 600mm (SM), 660mm (MD), 720mm (LG), 780mm (XL)
• Seat tube offet at bottom bracket: 41mm (all sizes)
• Bottom bracket drop, from front/rear axles: 25/5mm

View Full Geometry

Size	SM	MD	LG	XL
Top Tube Length	551mm	583mm	610mm	643mm
Head Tube Angle	64.5°	64.5°	64.5°	64.5°
Head Tube Length	105mm	115mm	125mm	135mm
Seat Tube Angle	78.8°	78.5°	78.2°	77.9°
Seat Tube Length	375mm	400mm	440mm	470mm
Bottom Bracket Height	350mm	350mm	350mm	350mm
Chainstay Length	442mm	442mm	448mm	448mm
Wheelbase	1201mm	1235mm	1271mm	1305mm
Reach	425mm	455mm	480mm	510mm
Stack	623mm	632mm	641mm	651mm
Additional Info	• Mixed ("Mullet") wheels: 29" front, 27.5" rear • All specifications listed are with 160mm travel fork with 579mm axle-to-crown length and 44mm offset • Saddle heights for effective seat tube angles: 600mm (SM), 660mm (MD), 720mm (LG), 780mm (XL) • Seat tube offet at bottom bracket: 41mm (all sizes) • Bottom bracket drop, from front/rear axles: 25/5mm

Wheel Size

Mixed Wheel Size

E-Bike Class

Class 1: Pedal Assist (Pedelecs)

Motor

Bosch Performance Line SX, 60 Nm max torque, 600 W peak power

Battery

Bosch CompactTube, integrated
Option: Bosch Range Extender, 250 Wh (sizes MD-XL only)

Battery Capacity

400 Wh

Display/Remote

Bosch System Controller display, top tube integrated; Bosch Wireless Mini Remote

Modes

Turbo, eMTB, Tour+, Eco, Walk Assist

Max Speed with Assist

USA/Canada/New Zealand: 20 mph (32.2 km/h)

Other: 15.5 mph (25 km/h)

Frame Material

Carbon Fiber

Frame Material Details

Carbon front and rear triangles, molded chainstay protection

Rear Travel

150mm

Rear Shock

RockShox Super Deluxe Ultimate, trunnion mount, 205mm length x 60mm stroke

Fork

RockShox Lyrik Ultimate, 35mm stanchions

Fork Travel

160mm

Head Tube Diameter

Tapered, 1.125" top, 1.5" bottom

Headset

FSA No.57E, ZS44 upper, ZS56 lower

Handlebar

OneUp Carbon, 800mm width, 35mm clamp diameter
Rise: 20mm (SM), 35mm (MD-XL)

Stem

ANVL Swage, 40mm length, 35mm bar clamp

Grips

ODI Elite Flow, lock-on

Brakes

TRP EVO Pro, 4-piston
Rotors: TRP R1, 2.3mm thick, 203mm

Brake Levers

TRP EVO Pro, tool-free reach adjust and contact point adjust

Drivetrain

Shifters

Shimano Deore XT M8100, 12-speed

Front Derailleur

None

Rear Derailleur

Shimano Deore XT M8100, 12-speed, SGS cage

Chainguide

Transition integrated upper slider

Cranks

Race Face ERA Carbon E-MTB, 160mm length

Chainrings

e*thirteen Helix Race, direct mount, 32 tooth

Pedals

None

Chain

Shimano Deore XT M8100, 12-speed

Cassette

Shimano Deore XT M8100, 12-speed, 10-51 tooth

Rims

DT Swiss XM 481 Alloy

Hubs

DT Swiss 350 Classic, 15mm x 110mm (Boost) front, 12mm x 148mm (Boost) rear with DEG freehub and MICRO SPLINE driver

Spokes

DT Swiss Competition

Tires

Front: Maxxis Assegai, 3C MaxxTerra compound, EXO+ casing, TR, 29" x 2.5"
Rear: Maxxis Minion DHR II, 3C MaxxTerra compound, EXO+ casing, TR, 27.5" x 2.4"

Saddle

SDG Bel-Air V3, Lux-Alloy rails

Seatpost

OneUp dropper
Drop: 150mm (SM), 180mm (MD), 210mm (LG), 240mm (XL)

Seatpost Diameter

31.6mm

Seatpost Clamp

Single bolt, 37.0mm

Rear Dropout / Hub Dimensions

12mm x 148mm (Boost)

Max. Tire Size

27.5" x 2.6"

Bottle Cage Mounts

One inside front triangle

Colors

Stormshadow Grey, Madrone Gold

Warranty

Lifetime frame, 2 years motor and battery

Weight

41 lb 2.6 oz (18,670 g)

Miscellaneous

• GiddyUp Four-Bar Horst Link rear suspension design
• Mixed ("Mullet") wheels: 29" front, 27.5" rear
• Rear travel can be increased to 160mm with longer-stroke (65mm) shock
• Internal cable routing
• Custom charge port cover with integrated range extender cable management
• SRAM UDH (Universal Derailleur Hanger)
• Power settings customizable via Bosch eBike Flow Mobile App
• Weight listed for size MD
• Includes Bosch battery charger
• Includes tubeless valves and sealant

Price

$9,499.00

More Info

Transition website

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Where To Buy
	Free shipping on orders over $50 (continental U.S. only). International shipping available. Some exclusions apply.	Browse available E-Bikes
	Free shipping on orders over $50 (contiguous U.S. only). International shipping available. Some exclusions apply.	Browse available E-Bikes