Transition Sentinel: suspension setup & specs
The Transition Sentinel is an all-mountain bike with 160 mm of fork travel and 150 mm at the rear. This page lists the 4 current builds with fork, shock and shock size and gives matching starting values for SAG and tyre pressure.
Calculate the setup for your Transition Sentinel →
All builds
Fork, shock, shock size (eye-to-eye length × stroke) and rear travel, weight and price according to the manufacturer. Wheel size: MX.
| Build | Fork | Shock | Shock size | Rear travel | Weight | RRP | Calculator |
|---|---|---|---|---|---|---|---|
| Alloy Eagle 70 | RockShox Psylo Gold RC (160 mm) | RockShox Super Deluxe Base | 205x60 | 150 mm | – | €4,199 | Setup → |
| Alloy Eagle 90 | RockShox Lyrik Ultimate (160 mm) | RockShox Super Deluxe Ultimate | 205x60 | 150 mm | – | €5,699 | Setup → |
| Carbon Eagle 90 | RockShox Lyrik Ultimate (160 mm) | RockShox Super Deluxe Ultimate | 205x60 | 150 mm | – | €7,299 | Setup → |
| Carbon XT Di2 | Fox 36 Factory Grip X2 (160 mm) | Fox Float X2 Factory | 205x60 | 150 mm | – | €8,299 | Setup → |
How it compares
On travel, the Transition Sentinel is right where the “all-mountain bike” category usually is: 160 mm up front against a median of 160 mm from 15 bikes. The rear offers 150 mm, 10 mm less than the front. Within Transition’s mountain bikes, it sits between the Transition Trans-Am and the Transition Spire on travel. Depending on the build, the frame is aluminium or carbon.
Entry costs €4,199 for the Alloy Eagle 70 build – less than the category median of €5,500. The top build, Carbon XT Di2, costs €8,299. For suspension, Transition combines components from FOX and RockShox. In total, 3 different forks are used, from the RockShox Psylo Gold RC to the Fox 36 Factory Grip X2.
Setup notes for this spec
- Fork (RockShox Psylo Gold RC): air goes in through the valve on top of the left leg. After every change, compress the fork firmly a few times before measuring SAG.
- Rebound: turn the red FOX and RockShox adjuster fully closed first and count clicks from there – that way you can note settings and restore them later.
- Air shock (RockShox Super Deluxe Base): measure SAG in your riding position, ideally with a helper holding the bike. Cycle the shock a few times after every pressure change.
Target SAG for the Transition Sentinel
Instead of percentages, this table gives SAG directly in millimetres, measurable with the O-ring on the stanchion and on the shock shaft. Change the pressure step by step until you reach the value; if Transition gives its own target SAG, use that.
160 mm fork, 60.0 mm shock stroke (all builds)
| Riding style | Fork SAG | Shock SAG |
|---|---|---|
| XC / touring | 17 % = 27 mm | 24 % = 14.4 mm on the shock shaft |
| Trail | 20 % = 32 mm | 28 % = 16.8 mm on the shock shaft |
| Enduro / rough | 22 % = 35 mm | 30 % = 18.0 mm on the shock shaft |
| Bike park | 20 % = 32 mm | 27 % = 16.2 mm on the shock shaft |
How to measure SAG is explained in our guide SAG setup.
Tyre pressure starting values
For 2.50″ wide tyres, tubeless with a trail casing. With an inner tube about 0.2 bar (2.9 psi) more, with an insert about 0.1 bar (1.5 psi) less. Stock tyres: MaxxGrip EXO+ (2.5) / 3C MaxxTerra EXO+ (2.4); Maxxis Assegai / Maxxis Minion DHRII; Maxxis Assegai 3C / Maxxis Minion DHRII; Maxxis Assegai EXO/TR (2.5) / Maxxis Minion DHRII EXO/TR (2.4).
| Ready-to-ride weight | Front | Rear |
|---|---|---|
| 60 kg | 1.43 bar (21 psi) | 1.63 bar (24 psi) |
| 70 kg | 1.55 bar (22 psi) | 1.75 bar (25 psi) |
| 80 kg | 1.67 bar (24 psi) | 1.87 bar (27 psi) |
| 90 kg | 1.79 bar (26 psi) | 1.99 bar (29 psi) |
| 100 kg | 1.91 bar (28 psi) | 2.11 bar (31 psi) |
| 110 kg | 2.03 bar (29 psi) | 2.23 bar (32 psi) |
| 120 kg | 2.15 bar (31 psi) | 2.35 bar (34 psi) |
Air pressure in the fork and shock
You will find a suitable starting pressure on the sticker on the fork stanchion (or on the shock) or in the suspension manufacturers’ setup charts. Our calculator gives you a starting value including rebound for your weight and riding style. What matters afterwards is the measured SAG from the table above.