2025 Transition Regulator SX Deore E-Bike

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Transition

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

Specifications

Product

Transition Regulator SX Deore E-Bike

Model Year

2025

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, 55 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 top tube integrated LED display, 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 Select, trunnion mount, 205mm length x 60mm stroke

Fork

RockShox Lyrik Base, 35mm stanchions

Fork Travel

160mm

Head Tube Diameter

Tapered, 1.125" top, 1.5" bottom

Headset

FSA No.57E, ZS44 upper, ZS56 lower

Handlebar

Race Face Chester, 780mm width, 35mm clamp diameter
Rise: 20mm (SM), 35mm (MD-XL)

Stem

Race Face Aeffect R, 40mm length, 35mm bar clamp

Grips

ODI Elite Flow, lock-on

Brakes

Shimano Deore M6120, 4-piston, Shimano Rt66 203mm rotors

Brake Levers

Shimano Deore M6100

Drivetrain

Shifters

Shimano Deore M6100, 12-speed, I-SPEC EV mounting bracket

Front Derailleur

None

Rear Derailleur

Shimano Deore M6100, 12-speed, SGS cage

Chainguide

Transition integrated upper slider

Cranks

Race Face Aeffect R E-MTB, 160mm length

Chainrings

e*thirteen Helix Race, direct mount, 32 tooth

Pedals

None

Chain

Shimano Deore M6100, 12-speed

Cassette

Shimano Deore M6100, 12-speed, 10-51 tooth

Rims

WTB ST i30 Alloy, 30mm inner width

Hubs

Novatec, D791SB 15mm x 110mm (Boost) front, D902SB 12mm x 148mm (Boost) rear with MICRO SPLINE driver

Spokes

DT Swiss Competition

Tires

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

Saddle

SDG Bel-Air V3

Seatpost

SDG Tellis dropper
Drop: 150mm (SM), 170mm (MD), 200mm (LG), 230mm (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 2.5"

Bottle Cage Mounts

One inside front triangle

Colors

Stormshadow Grey, Madrone Gold

Warranty

Lifetime frame, 2 years motor and battery

Weight

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
• Includes Bosch battery charger
• Includes tubeless valves and sealant
• Photos may show alternate build

Price

$6,999.00

More Info

Two New Bosch-powered e-Bikes from Transition - The Regulator CX and SX

Transition website

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