Marin Quake: suspension setup & specs
The Marin Quake is a downhill bike with 200 mm of fork travel and 180 mm at the rear. Below you will find all 1 current builds with fork, shock and shock size, plus SAG values in millimetres and a tyre pressure table.
Calculate the setup for your Marin Quake →
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 |
|---|---|---|---|---|---|---|---|
| Quake | RockShox Boxxer (200 mm) | RockShox Vivid Coil Ultimate DH | 225x75 | 180 mm | – | – | Setup → |
How it compares
On travel, the Marin Quake is right where the “downhill bike” category usually is: 200 mm up front against a median of 200 mm from 16 bikes. The rear offers 180 mm, 20 mm less than the front. No other Marin model among its mountain bikes has more travel up front. The frame is made of aluminium.
Marin uses RockShox suspension throughout. With the RockShox Vivid Coil Ultimate DH, the Quake build has a coil shock – here the spring rate determines SAG.
Setup notes for this spec
- Fork (RockShox Boxxer): 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: on RockShox suspension the rebound adjuster is red. Always count clicks from fully closed (clockwise to the stop) so you can return to any setting.
- Coil spring (RockShox Vivid Coil Ultimate DH): if SAG is off, only a different spring rate will fix it. Preload should just keep the spring from rattling; more preload makes the shock less supple.
Target SAG for the Marin Quake
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 Marin specifies its own target SAG for your model, that takes priority.
200 mm fork, 75.0 mm shock stroke (all builds)
| Riding style | Fork SAG | Shock SAG |
|---|---|---|
| XC / touring | 17 % = 34 mm | 24 % = 18.0 mm on the shock shaft |
| Trail | 20 % = 40 mm | 28 % = 21.0 mm on the shock shaft |
| Enduro / rough | 22 % = 44 mm | 30 % = 22.5 mm on the shock shaft |
| Bike park | 20 % = 40 mm | 27 % = 20.2 mm on the shock shaft |
How to measure SAG is explained in our guide SAG setup.
Tyre pressure starting values
Basis: 2.50″ tyre width, tubeless, trail casing. If you run tubes, add about 0.2 bar (2.9 psi); with an insert, about 0.1 bar (1.5 psi) less is enough. Stock tyres: Front: Schwalbe Magic Mary, Gravity Pro, 29x2.5", Radial, Ultra Soft | Rear: Schwalbe Magic Mary, Gravity Pro, 27.5x2.5", Radial, Soft.
| 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.