Quiver

2024 Transition Relay Carbon vs 2026 Transition Sentinel Alloy

We can't match sizes for these two: one of them has no stack and reach for the sizes shown.

What changes on the Transition Sentinel Alloy

Frame stack
−7 mm
Lower front end
Frame reach
n/a
One of the bikes has no number for this
Wheelbase
−7 mm
Shorter: quicker to change direction
Head angle
n/a
One of the bikes has no number for this
Chainstays
±0 mm
About the same

The two frames

We can't draw these frames yet. The Transition Relay Carbon numbers we have for size M are missing the reach, head angle and seat angle. The numbers below still compare.

Geometry side by side

MeasurementTransition Relay Carbon MTransition Sentinel Alloy MDifference
Stack628621−7 mm
Chainstay length442442±0 mm
Wheelbase12441237−7 mm
BB drop2525±0 mm
BB height350not listed
Seat tube length410390−20 mm
Head tube length115110−5 mm
Reachnot listed455
Head tube anglenot listed64.0
Seat tube anglenot listed73.0
Effective top tubenot listed577
Standovernot listed690

Differences are the Transition Sentinel Alloy minus the Transition Relay Carbon. Full charts: 2024 Transition Relay Carbon, 2026 Transition Sentinel Alloy.

Where each sits in its class

Transition Relay CarbonTransition Sentinel Alloy

AggressivePositionUpright
CalmSteeringQuick
PlayfulBalancePlanted

Each bike is ranked against the other trail bikes on Quiver, on frame geometry alone. Not your hand position or ride feel.

What each ships with

The stock build of each bike's first listed trim. Parts that match are dimmed.

PartTransition Relay CarbonCarbon Eagle 90Transition Sentinel AlloyAlloy Eagle 70
FrameTransition RelayTransition Sentinel
ForkRockShox Lyrik Select+RockShox Psylo
Rear shockRockShox Super Deluxe Select+RockShox Super Deluxe Base
ShifterSRAM Eagle 90 TransmissionSRAM Eagle 70 Transmission
DerailleurSRAM Eagle 90 TransmissionSRAM Eagle 70 Transmission
CassetteSRAM GX Eagle TransmissionSRAM Eagle 70 Transmission
ChainSRAM GX Eagle TransmissionSRAM Eagle 70 Transmission
CranksetRace Face Aeffect ETORSRAM Eagle 70 Transmission
ChainringSRAM XXSRAM Eagle 70 Transmission
MotorFazua Ride 60not listed
BatteryFazua Energy 430not listed
WheelsetDT Swiss E 1900 Spline 30WTB ST
TireMaxxis Assegai, Maxxis Minion DHR IIMaxxis Assegai, Maxxis Minion DHR II DD
HubDT Swiss 370not listed
RimDT Swiss E 1900not listed
BrakeSRAM MavenSRAM Maven Base
RotorSRAM CenterlineSRAM CenterLine
HandlebarANVL MandrelRace Face Chester
StemANVL SwageRace Face Aeffect
GripsODI Elite FlowODI Elite Flow
HeadsetFSA No.55RFSA No 57E
Dropper postOneUp Components dropper postSDG Tellis Dropper
SeatpostOneUp Components Droppernot listed
SaddleSDG Bel Air 3SDG Bel Air 3

Know what is on every bike.

Add your bike to Quiver. Keep its parts, setup, and service history together, then share your build.

Explore the app
A Transition Relay build sheet: frame, fork, shock and drivetrainThe Relay’s ride photo galleryThe Relay’s ride spectrum and 2D frame geometryThe garage: five bikes and 99 recorded partsA Specialized Tarmac SL8 road build sheet