2023 Transition

Relay Carbon XX AXS

A 27.5″ / 29″ carbon frame full suspension enduro e-bike with ultra high-end components.
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Manufacturer Price

Weight42.2 lbs  
SuspensionFull, 160 / 160mm
ForkFox Factory Float 36
ShockFox Float X Factory
Wheels27.5″ / 29″ Carbon
Drivetrain1 × 12 Electronic
GroupsetXX Eagle Transmission, SRAM
MotorFazua 450W 60Nm mid-drive
BatteryFazua 430Wh
BrakesHydraulic Disc
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Ride Feel

Based on frame geometry and build specs.

Relay Carbon XX AXS
Other Enduro bikes

A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

Lowest gear


28 mph

Relay Carbon XX AXS

26 mph

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Highest gear


Spec Level

Based on build material and quality level of the frame, fork, wheelset, groupset, suspension system, and more.

Compare the full Relay model range

View Comparison

4'8" – 5'3"


5'0" – 5'7"


5'4" – 6'0"


5'8" – 6'3"


6'0" – 6'7"


6'2" – 6'10"

🐐 Estimated

Rider Fit Notes

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Price History
99 Spokes
Transition Relay Carbon PNW X0 AXS

Mar 2024

The Transition Relay PNW edition, dubbed an "E-Downhill Bike" in our test, excels in aggressive riding but demands effort to reach its peak performance, boasting a battery-optional design for versatile use.

  • Extremely composed on steep, fast, and technical descents

  • Designed to be ridden without the battery installed

  • Soaks smaller trail features, numbing less extreme terrain

  • Battery must be removed to charge

  • Heavy

Read Review

E-Mountainbike Magazine
Transition Relay Carbon PNW X0 AXS first ride review - Long-travel light eMTB with shredding potential

Nov 2023 · Simon Kohler

The Transition Relay Carbon PNW X0 AXS was the first e-mountainbike to come equipped with a FAZUA Ride 60 motor. How does it fare on the trail?

  • Great composure

  • Excellent rear suspension performance

  • Great allround potential

  • Beefy look for a Light eMTB

  • Akku Battery has to be removed for charging

  • Slightly sluggish handling

Read Review

Transition Relay Carbon GX AXS first ride review - MBR

Aug 2023 · Jamie Darlow

Transition has made a bike to tempt the e-bike naysayers, a lightweight raver of a bike driven by Fazua’s Ride 60 motor. We rode it until they demanded it back, in a quest to find out how it fares against the best electric bikes you can buy today. Need to know  Lightweight, mid-power e-bike with Fazua Ride 60 motor and removable battery Built to be ridden with or without 430Wh battery, thanks to near drag-free motor 160mm travel front and rear, choice of mullet or 29in wheels, coil or air shocks Sleek carbon frame with real bio-bike looks, or available as an alloy frame build Builds from £6,999.95 with NX and alloy frame, up to XX AXS carbon at £12,599.95 They say there’s nothing really new in mountain biking, just old ideas recycled, like Shimano’s auto shifting, steering dampers and electronic suspension. Here’s another one to add to the list, Fazua’s latest Ride 60 motor has 250W power, puts out 60Nm torque and uses a 430Wh battery. That makes it pretty darned close to the old Shimano E8000 motor and battery launched in 2016, which had the same average power and 10Nm more torque. And, just as it was seven years ago it’s cutting edge stuff, coming on the most exclusive new bikes like this Transition Relay. The difference of course is that today’s mid-powered motors have sacrificed the peak power for low weight and compact size, in an effort to replicate the look and ride feel of a regular bike. Fazua’s Ride 60 motor is claimed to weigh just 1.96kg, while the 430Wh battery is easier to verify because it’s removable on the Relay, and reads 2.27kg on our scales. That 4.23kg system weight is light but on the other hand it’s actually only 1,100g less than the old E8000 motor and bigger 504Wh battery, according to Shimano’s website.  Which is the best e-bike motor? Power, punch and range compared You’ll be relieved to hear Fazua wins in terms of space savings too, the Ride 60 motor is so tiny you’d be forgiven for thinking the Relay is a regular bike, and the fact you can whip the internal battery out and pedal it around is useful, even if just for the ability to charge the battery off the bike. Powered up, the display uses a traffic light system, and it is integrated into the top tube, with a series of lights to let you know how much juice you have left and which of the three power modes you’re in. The claim is it’s intuitive because the lights instantly remind you of the mode you’re in, but to do that you have to first learn which colour relates to which power mode. I’d argue words and letters are more intuitive as most of us have already learnt them. I also found the LEDs far too bright for riding at the end of a summer’s day, so I imagine they’re blinding on a night ride. The bar-mounted Ring Controller …Continue reading »

  • Hilariously fun to ride, lightweight and with a normal bike feel. Twinned with a powerful and adaptable motor that’s a joy to use. Available in six sizes.

  • Noisy, tendency to eat its own spider. Needs a chain guide.

Read Review

EMTB Forums
The 2023 Transition Relay details are out

Jan 2023 · Knut Nes

Transition just released the info on the new lightweight Relay. They say the bike will hit the market late March 2023. Check out the Transition video for a look at the details, or keep reading below. So many choices We get to choose between...

Read Review

Loam Wolf
Transition RELAY Full Details Announced

Jan 2023

TRANSITION BIKES AVAILABLE SOON | RELAY & RELAY PNW FULL DETAIL ANNOUNCEMENT Living in uncharted territory, the Relay is a lightweight, long travel, modular mountain bike. We have always wanted a bike that could provide both an electric and non-electric experience in one chassis. The Relay is

Read Review

Transition Announces New Lightweight eMTB... But You'll Have to Wait For It

Jun 2022 · Mike Kazimer

The new Relay is designed to be ridden with or without a battery installed.

Read Review

99 Spokes on YouTube99 Spokes on YouTube

Relay Carbon 160mm

Hanger StandardUDH

Tire Clearance2.6"

ColorsTr Blue; Oxide Grey


Fox Float 36 Grip 2 Factory, (160mm)


Spring TypeAir


Fox Float X Factory, (205x60mm)


Bottom Bracket

Fazua Ride 60 System


FSA No.55R


ANVL Swage (40mm)


OneUp Carbon, XS/SM(800x20) MD/LG/XL/XXL(800x35)


SDG Bel Air 3


OneUp Dropper Post, XS(120mm) SM(150mm) MD(180mm) LG/XL/XXL(210mm)



ODI Elite Flow Lock-On

Rear Derailleur

SRAM XX AXS Eagle Transmission


Praxis Carbon ETOR, (165mm, X-Small 160mm)


SRAM POD Ultimate Bridge MMX


SRAM XS 1297 T-Type (10-52t)


SRAM XX Eagle Transmission


SRAM Code Ultimate Stealth

TypeHydraulic Disc


Crankbrothers Synthesis Enduro Carbon


Sapim D-Light (Front), Sapim Strong (Rear)

Front Hub

Industry Nine 1/1 (28H Front/32H Rear)

Rear Hub

Industry Nine 1/1 (28H Front/32H Rear)


Front: Maxxis Assegai 3C EXO+ 2.5, Rear: Maxxis Minion DHRII 3C EXO+ 2.4

Disc Rotors

SRAM HS2 (200mm)

Electric Components

Fazua Ride 60


Fazua Energy 430 Take Out

Rider Notes
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Last updated June 17