YT Decoy SN 29: suspension setup & specs
The YT Decoy SN 29 is an e-MTB for trail and touring with 160 mm of fork travel and 140 mm at the rear. It is powered by FAZUA (60 Nm). Here you will find all 4 current builds with fork, shock and shock size, plus matching SAG and tyre pressure starting values.
Calculate the setup for your YT Decoy SN 29 →
All builds
Fork, shock, shock size (eye-to-eye length × stroke) and rear travel, motor, weight and price according to the manufacturer. Wheel size: 29".
| Build | Fork | Shock | Shock size | Rear travel | Motor | Weight | RRP | Calculator |
|---|---|---|---|---|---|---|---|---|
| CORE 1 | Marzocchi Bomber Z1 (160 mm) | Marzocchi Bomber Air | 230x57.5 | – | FAZUA (60 Nm) | – | – | Setup → |
| CORE 2 | FOX 36 Float Performance (160 mm) | FOX Float X Performance | 230x57.5 | 140 mm | FAZUA (60 Nm) | – | – | Setup → |
| CORE 3 | RockShox Lyrik Ultimate (160 mm) | RockShox Super Deluxe Ultimate | 230x57.5 | 140 mm | FAZUA (60 Nm) | – | – | Setup → |
| CORE 4 | FOX 36 Float Factory (160 mm) | FOX Float X Factory | 230x57.5 | 140 mm | FAZUA (60 Nm) | – | – | Setup → |
How it compares
Up front the YT Decoy SN 29 runs 160 mm – 10 mm more than the 150 mm median we calculated from 101 bikes in the “e-MTB for trail and touring” category. The rear offers 140 mm, 20 mm less than the front. Among YT’s e-mountain bikes, the YT Decoy SN 29 has the shortest fork travel.
For suspension, YT combines components from FOX, Marzocchi and RockShox. The fork line-up ranges from the Marzocchi Bomber Z1 to the FOX 36 Float Factory. Drive comes from FAZUA (60 Nm).
Setup notes for this spec
- Air fork (Marzocchi Bomber Z1): the air valve is on top of the left leg under a cap. Change pressure in small steps (about 5 psi (0.34 bar)) and cycle the fork a few times afterwards so the air chambers can equalise.
- Rebound: turn the red FOX, Marzocchi and RockShox adjuster fully closed first and count clicks from there – that way you can note settings and restore them later.
- Air shock (FOX Float X Performance): measure SAG in your riding position, ideally with a helper holding the bike. Cycle the shock a few times after every pressure change.
- e-MTB: because of the extra weight, start with slightly more tyre pressure – the surcharge is already built into the table below.
Target SAG for the YT Decoy SN 29
SAG is the share of travel your weight already uses in the riding position. The table gives it straight in millimetres – read the O-ring on the stanchion and on the shock shaft and adjust the air pressure until it matches. Any figures from YT take priority.
160 mm fork, 57.5 mm shock stroke (all builds)
| Riding style | Fork SAG | Shock SAG |
|---|---|---|
| XC / touring | 17 % = 27 mm | 24 % = 13.8 mm on the shock shaft |
| Trail | 20 % = 32 mm | 28 % = 16.1 mm on the shock shaft |
| Enduro / rough | 22 % = 35 mm | 30 % = 17.2 mm on the shock shaft |
| Bike park | 20 % = 32 mm | 27 % = 15.5 mm on the shock shaft |
How to measure SAG is explained in our guide SAG setup.
Tyre pressure starting values
The values apply to 2.60″ wide tubeless tyres with a trail casing, including the e-MTB surcharge. With an inner tube add about 0.2 bar (2.9 psi), with an insert take off about 0.1 bar (1.5 psi).
| Ready-to-ride weight | Front | Rear |
|---|---|---|
| 60 kg | 1.40 bar (20 psi) | 1.60 bar (23 psi) |
| 70 kg | 1.52 bar (22 psi) | 1.72 bar (25 psi) |
| 80 kg | 1.64 bar (24 psi) | 1.84 bar (27 psi) |
| 90 kg | 1.76 bar (26 psi) | 1.96 bar (28 psi) |
| 100 kg | 1.88 bar (27 psi) | 2.08 bar (30 psi) |
| 110 kg | 2.00 bar (29 psi) | 2.20 bar (32 psi) |
| 120 kg | 2.12 bar (31 psi) | 2.32 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.