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2026 Transition

Sentinel Carbon Frameset

A 29″ carbon frame full suspension enduro frameset.

Manufacturer Price

$3,799
FrameCarbon
SuspensionFull, 150mm rear
ShockFox Float X2 Factory
Wheels29″
View on transitionbikes.comLearn about Transition
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Insights
Sizing
SM

5'0" – 5'7"

MD

5'4" – 6'0"

LG

5'8" – 6'3"

XL

6'0" – 6'7"

🐐 Estimated

Rider Fit Notes

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Price History
Reviews
Bicycling
Is the Transition Sentinel a Superbike Hiding in Plain Sight?

Oct 2024

The latest iteration of Transition’s 150mm travel trail bike features in-frame storage and more balanced performance.

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Enduro Mountainbike Magazine
The new 2025 Transition Sentinel on test

Oct 2024 · Peter Walker

We have tested the new and radical trail bike – the Transition Sentinel 2025 – for you.

Highs
  • Well-matched components

  • Cool detail updates

  • Inspires huge amounts of confidence downhill

  • Rear suspension is progressive and generates plenty of traction

Lows
  • Comfortable climber

  • Tight space around the BOOM Box

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MTB Mag
[First Ride] Transition Sentinel V3

Oct 2024 · Ian Collins

In July I attended the launch of a new bike which I’ve given very high praise in its past iteration – the Transition Sentinel. Now in its third time around, the already highly versatile rig boasts updated geometry and improved kinematics as well as downtube storage, fully internal cable routing and a flip chip. I managed to get a few solid rides in on the new bike deep in the middle of Summer. Luckily, that coincided with a one-off rain storm that revitalized the local soil during an atypically dry Summer in Bellingham, Washington. The trails I rode included all

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NSMB
2025 Transition Sentinel

Oct 2024

The Sentinel has always been known as a trail bike that can be bent to fit different categories. The latest version continues the tradition.

Read Review

Pinkbike
First Ride: The 2025 Transition Sentinel is 29" and MX-Capable

Oct 2024 · Jessie-May Morgan

As is stock, it was provided with dual 29" wheels, with the 205mm x 60mm shock giving 150mm of rear wheel travel.

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Singletracks
The 2025 Transition Sentinel v3 is like a BMX bike’s bigger brother — powerful, fun, and ready for action [Review]

Oct 2024 · Tim Wild

I’m never going to threaten the podium at an enduro race — but the Transition Sentinel made me feel as if I could, and ride as if I should.

Highs
  • Super-nimble ride feel for such a large bike

  • Improved shock mount

  • Flip-chip allows for mixed wheel setup

Lows
  • Needs to be locked out to climb well

  • Might take some work to get the correct sizing

  • Seat clamp bolt could be recessed for weather protection

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Singletrack World
Transition Sentinel 2025: First Ride Review+

Oct 2024 · Singletrack Magazine

Transition Sentinel: 29er seeks adventurous riders for mutual outdoor fun. Sleek, sexy and BMX-y. 160mm up front, 150mm out back. Roving reporter Tim WIld tries out a 2025 Deep Purple Transition Se…

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Geometry
Specs
Build
Frame

Sentinel Carbon 150mm

BB StandardBSA, 73mm, Threaded

ColorsSilver Mist; Desert Dusk

Shock

Fox Float X2 Factory, (205x60mm)

Travel150mm

Bottom Bracket

73mm BSA Threaded

Headset

Not Included

Groupset
Chain Guide

ISCG05

Rider Notes
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First added April 8

Last updated May 30