Santa Cruz Megatower: suspension setup & specs
The Santa Cruz Megatower is an enduro bike with 170 mm of fork travel and 170 mm at the rear. This page lists the 5 current builds with fork, shock and shock size and gives matching starting values for SAG and tyre pressure.
Calculate the setup for your Santa Cruz Megatower →
All builds
Fork, shock, shock size (eye-to-eye length × stroke) and rear travel, weight and price according to the manufacturer. Wheel size: 29 / 29".
| Build | Fork | Shock | Shock size | Rear travel | Weight | RRP | Calculator |
|---|---|---|---|---|---|---|---|
| 70 2026 | RockShox Zeb Base, 170mm (170 mm) | — (Hardtail) | 230x65 | – | 16.5 kg | €5,599 | Setup → |
| 90 2026 | FOX 38 Float Performance, Grip, 170mm (170 mm) | — (Hardtail) | 230x65 | – | 16.4 kg | €6,599 | Setup → |
| GX AXS 2025 | FOX 38 Float Performance Elite, Grip X2, 170mm (170 mm) | Fox Float X Performance Elite | 230x65 | 170 mm | 15.9 kg | €7,699 | Setup → |
| X0 AXS 2025 | FOX 38 Float Factory Elite, Grip X2, 170mm (170 mm) | Fox Float X2 Factory | 230x65 | 170 mm | 16.0 kg | €9,299 | Setup → |
| X0 AXS RSV 2025 | FOX 38 Float Factory Elite, Grip X2, 170mm (170 mm) | Fox Float X2 Factory | 230x65 | 170 mm | 15.8 kg | €10,499 | Setup → |
How it compares
170 mm at the fork almost exactly matches the 170 mm median of the 41 bikes in the “enduro bike” category in our database. Front and rear both work with 170 mm of travel. On travel, it slots in between the Santa Cruz Hightower and the Santa Cruz V10 in the Santa Cruz range. The frame is made of carbon.
At 15.8 kg (X0 AXS RSV 2025 build), the weight is close to the category median of 15.7 kg. Within the range, weight varies by 0.7 kg. The Santa Cruz Megatower is not a budget bike: even the 70 2026 build costs €5,599, while the category median is €4,750. For the X0 AXS RSV 2025 build, Santa Cruz asks €10,499. For suspension, Santa Cruz combines components from FOX and RockShox. In total, 4 different forks are used, from the RockShox Zeb Base, 170mm to the FOX 38 Float Factory Elite, Grip X2, 170mm.
Setup notes for this spec
- Fork (RockShox Zeb Base, 170mm): 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.
- Shock (Fox Float X Performance Elite): get on the bike in your normal riding position, step off carefully and read the O-ring. Always cycle the shock a few times after pumping.
Target SAG for the Santa Cruz Megatower
The table converts the recommended SAG percentages into millimetres, so you can check them with the O-ring directly on the stanchion and on the shock shaft. Adjust the air pressure until the value is right. If Santa Cruz specifies its own target SAG for your model, that takes priority.
170 mm fork, 65.0 mm shock stroke (all builds)
| Riding style | Fork SAG | Shock SAG |
|---|---|---|
| XC / touring | 17 % = 29 mm | 24 % = 15.6 mm on the shock shaft |
| Trail | 20 % = 34 mm | 28 % = 18.2 mm on the shock shaft |
| Enduro / rough | 22 % = 37 mm | 30 % = 19.5 mm on the shock shaft |
| Bike park | 20 % = 34 mm | 27 % = 17.6 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: Maxxis Assegai 29"x2.5", 3C MaxxGrip, EXO+ / Maxxis Minion DHR II 29x2.4" 3C MaxxTerra, Double Down.
| 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.
Sources
- Megatower 70 2026
- Megatower 90 2026
- Megatower GX AXS 2025
- Megatower X0 AXS 2025
- Megatower X0 AXS RSV 2025