Marin Rift Zone: suspension setup & specs
The Marin Rift Zone is a trail bike with 140 mm of fork travel and 130 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 Rift Zone →
All builds
Fork, shock, shock size (eye-to-eye length × stroke) and rear travel, weight and price according to the manufacturer. Wheel size: 29.
| Build | Fork | Shock | Shock size | Rear travel | Weight | RRP | Calculator |
|---|---|---|---|---|---|---|---|
| 2 | Marzocchi Bomber Z2 29" (140 mm) | Marzocchi Bomber Air Inline | 210x55 | 130 mm | – | – | Setup → |
How it compares
On travel, the Marin Rift Zone is right where the “trail bike” category usually is: 140 mm up front against a median of 140 mm from 44 bikes. The rear offers 130 mm, 10 mm less than the front. Within Marin’s mountain bikes, it sits between the Marin Tam and the Marin Alpine Trail on travel.
Fork and shock come from Marzocchi on every build.
Setup notes for this spec
- Fork (Marzocchi Bomber Z2 29"): 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 Marzocchi suspension the rebound adjuster is red. Always count clicks from fully closed (clockwise to the stop) so you can return to any setting.
- Shock (Marzocchi Bomber Air Inline): 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 Marin Rift Zone
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 Marin take priority.
140 mm fork, 55.0 mm shock stroke (all builds)
| Riding style | Fork SAG | Shock SAG |
|---|---|---|
| XC / touring | 17 % = 24 mm | 24 % = 13.2 mm on the shock shaft |
| Trail | 20 % = 28 mm | 28 % = 15.4 mm on the shock shaft |
| Enduro / rough | 22 % = 31 mm | 30 % = 16.5 mm on the shock shaft |
| Bike park | 20 % = 28 mm | 27 % = 14.9 mm on the shock shaft |
How to measure SAG is explained in our guide SAG setup.
Tyre pressure starting values
For 2.40″ 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: Front: Maxxis Assegai MAXX GRIP, 2.5" EXO+ | Rear: Maxxis Minion DHR II, MAXXTERRA, 2.5" EXO+, Tubeless compatible.
| 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.