Manitou Mezzer Pro setup
The Mezzer has two air pressures, not one. Put in your weight and travel for Manitou’s own pair of numbers, and fill the IRT chamber first.
Fill the irt chamber to 83 psi first, then the main chamber to 55 psi. Then measure sag.
Compression, spacers and limits
- Compression: Counted out from fully closed (clockwise). Low-speed: 6–9 clicks out for a plush, natural feel, 4–6 for mid, 2–4 for firm or park. High-speed: 5–7 for plush, 4–6 for mid, 2–4 for firm.
- Rebound: Turn each dial fully clockwise until it stops (that is zero, the most damping), then count the clicks back out counter-clockwise. Manitou calls this "Max minus 4". Low-speed goes 10 to 0 and high-speed 8 to 0.
- Volume spacers: No spacers. End-of-travel ramp is set by the IRT chamber.
- Mezzer Pro Gen 2 numbers (180 and 190 mm are the LT Pro). The 2020–22 Gen 1 has its own chart.
- Fill the IRT chamber first, then the main. Max 150 psi IRT, 120 psi main.
- Max pressure 120 psi.
- Source: Manitou Mezzer Pro / LT Pro Gen 2 set-up guide (hayesbicycle)
Fix what you feel
Tap what your fork does. Fixes are for your MC² Pro-X. Change one thing at a time, then ride the same section again.
Harsh over roots and braking bumps
Too much air, or high-speed compression too firm.
- Check sag first. Under 20% means too much air in the main chamber.
- Open high-speed compression 1–2 clicks (counter-clockwise). It controls the hits from roots, rocks and braking bumps.
- If it also feels stuck low, open low-speed rebound 1 click.
Dives under braking and on steep roll-ins
Not enough low-speed compression or mid-stroke support, or too much sag.
- Add low-speed compression 1–2 clicks (clockwise). It holds the fork up in pedaling, berms and braking.
- Still diving? Add 5 psi to the IRT chamber for more mid-stroke support.
- Sag past 25%? Add 2–3 psi to the main chamber.
Bottoms out hard on drops and big landings
Not enough high-speed compression or end-stroke support.
- Add high-speed compression 1–2 clicks (clockwise). It controls deep hits like jump landings.
- Still bottoming? Add 5–10 psi to the IRT chamber. That is Manitou’s range for downhill and e-bike riding.
- The last 30 mm of travel already has a built-in hydraulic bottom-out that isn’t adjustable.
Never uses full travel, even on big hits
Too much air, too much IRT, or too much compression.
- Check sag. Under 20% means too much main pressure.
- Take 5 psi out of the IRT chamber. Manitou drops IRT 5–10 psi for trail riding.
- Open high-speed compression 1–2 clicks (counter-clockwise).
Bouncy, or clunks at full extension
Rebound is too fast.
- Add low-speed rebound 1–2 clicks (clockwise). If it kicks after big hits, add 1 click of high-speed rebound. Slower high-speed rebound keeps it calm after jumps and drops.
Rides lower and lower through rough sections
Rebound is too slow, so the fork packs down.
- Open low-speed rebound 2 clicks (counter-clockwise). If it packs on fast hits in a row, open high-speed rebound 1 click.
Tell Suspend how it felt and it gives you the exact click to change on your Manitou Mezzer Pro. Free for your first bike.
Full Manitou Mezzer Pro reference
For the Mezzer Pro Gen 2 (MC² Pro-X damper with four dials), from Manitou’s G2 Pro and LT Pro set-up guide. 140–170 mm on the Pro, 160–190 mm on the LT Pro. The earlier Gen 1 Mezzer (2020–2022, one rebound dial) has a different air chart in its own guide on hayesbicycle.zendesk.com.
How to fill the Manitou Mezzer Pro’s two air chambers
Two pressures. IRT chamber (cap on top of the fork): a second, higher-pressure chamber that works deeper in the stroke. It holds you up in the middle and fights bottoming. Main chamber (valve at the bottom of the fork): sets your sag and how soft the fork feels off the top. Fill IRT first, then main, with the fork unweighted. Never go over 120 psi main or 150 psi IRT.
Manitou Mezzer Pro air pressure chart
| lb | kg | psi | IRT |
|---|---|---|---|
| under 140 | under 64 | 40 | 61 |
| 140–160 | 64–73 | 49 | 74 |
| 160–180 | 73–82 | 59 | 87 |
| 180–200 | 82–91 | 68 | 100 |
| 200–220 | 91–100 | 77 | 113 |
| 220–240 | 100–109 | 86 | 126 |
| 240–260 | 109–118 | 95 | 139 |
| lb | kg | psi | IRT |
|---|---|---|---|
| under 140 | under 64 | 39 | 59 |
| 140–160 | 64–73 | 48 | 72 |
| 160–180 | 73–82 | 57 | 85 |
| 180–200 | 82–91 | 66 | 98 |
| 200–220 | 91–100 | 75 | 111 |
| 220–240 | 100–109 | 84 | 124 |
| 240–260 | 109–118 | 93 | 137 |
| lb | kg | psi | IRT |
|---|---|---|---|
| under 140 | under 64 | 38 | 57 |
| 140–160 | 64–73 | 47 | 70 |
| 160–180 | 73–82 | 55 | 83 |
| 180–200 | 82–91 | 64 | 96 |
| 200–220 | 91–100 | 73 | 109 |
| 220–240 | 100–109 | 82 | 122 |
| 240–260 | 109–118 | 91 | 135 |
| lb | kg | psi | IRT |
|---|---|---|---|
| under 140 | under 64 | 37 | 55 |
| 140–160 | 64–73 | 45 | 68 |
| 160–180 | 73–82 | 54 | 81 |
| 180–200 | 82–91 | 62 | 94 |
| 200–220 | 91–100 | 71 | 107 |
| 220–240 | 100–109 | 80 | 120 |
| 240–260 | 109–118 | 88 | 133 |
| lb | kg | psi | IRT |
|---|---|---|---|
| under 140 | under 64 | 35 | 53 |
| 140–160 | 64–73 | 44 | 66 |
| 160–180 | 73–82 | 52 | 79 |
| 180–200 | 82–91 | 61 | 92 |
| 200–220 | 91–100 | 69 | 105 |
| 220–240 | 100–109 | 77 | 118 |
| 240–260 | 109–118 | 86 | 131 |
| lb | kg | psi | IRT |
|---|---|---|---|
| under 140 | under 64 | 34 | 51 |
| 140–160 | 64–73 | 42 | 64 |
| 160–180 | 73–82 | 51 | 77 |
| 180–200 | 82–91 | 59 | 90 |
| 200–220 | 91–100 | 67 | 103 |
| 220–240 | 100–109 | 75 | 116 |
| 240–260 | 109–118 | 83 | 129 |
psi. Source: Manitou Mezzer Pro / LT Pro Gen 2 set-up guide (hayesbicycle).
Manitou Mezzer Pro rebound clicks by weight
| lb | MC² Pro-X low | MC² Pro-X high |
|---|---|---|
| under 140 | 9–10 | 7–8 |
| 140–160 | 8–9 | 6–8 |
| 160–180 | 7–8 | 5–7 |
| 180–200 | 6–7 | 4–6 |
| 200–220 | 4–5 | 3–6 |
| 220–240 | 3–4 | 2–5 |
| 240–260 | 2–3 | 1–4 |
Turn each dial fully clockwise until it stops (that is zero, the most damping), then count the clicks back out counter-clockwise. Manitou calls this "Max minus 4". Low-speed goes 10 to 0 and high-speed 8 to 0. Push the fork down hard and let go. If it clunks or kicks back, rebound is too fast. If it stays low, it’s too slow. Manitou says to match the front and rear wheel return speed.
Manitou Mezzer Pro sag in millimetres
| Travel | 20% (firm) | 25% (plush) |
|---|---|---|
| 140 mm | 28 mm | 35 mm |
| 150 mm | 30 mm | 38 mm |
| 160 mm | 32 mm | 40 mm |
| 170 mm | 34 mm | 43 mm |
| 180 mm | 36 mm | 45 mm |
| 190 mm | 38 mm | 48 mm |
Worked out from Manitou’s 20–25% sag range. Measure with the compression adjusters fully open, dressed to ride, weight spread across saddle, bars and pedals.
Manitou Mezzer Pro compression settings
| Damper | Start at |
|---|---|
| MC² Pro-X | Counted out from fully closed (clockwise). Low-speed: 6–9 clicks out for a plush, natural feel, 4–6 for mid, 2–4 for firm or park. High-speed: 5–7 for plush, 4–6 for mid, 2–4 for firm. |
Manitou Mezzer Pro volume spacers
No spacers. End-of-travel ramp is set by the IRT chamber.
The Mezzer has no volume spacers or tokens to count. How hard it ramps up is set by the second air chamber, IRT. The travel spacers in the box set travel, not tuning.
Which Manitou Mezzer Pro damper do I have?
- MC² Pro-X: Four dials: red low-speed and black high-speed compression, blue low-speed and silver high-speed rebound.
The Gen 2 Mezzer Pro and LT Pro both have the MC² Pro-X damper, with separate low-speed and high-speed dials for compression and for rebound.
Questions
What air pressure should I run in my Manitou Mezzer Pro?
It depends on your weight and travel, and there are two numbers. At 160 mm, a 170–180 lb rider is in the 160–180 lb row: 55 psi main and 83 psi IRT (at 140 mm, 59 and 87). Fill the IRT chamber on top first, then the main chamber at the bottom. Max is 120 psi main and 150 psi IRT. Manitou says add 3–4 psi main and 5–10 IRT for e-bike or downhill use, and drop the same for trail.
How much sag should a Manitou Mezzer Pro have?
Manitou’s pressures are built for 20–25% sag: 32–40 mm on a 160 mm fork. Adjust the pressure up or down to suit you. Manitou links a sag set-up video from the guide.
How many clicks of rebound on a Manitou Mezzer Pro?
There are two rebound dials. For a 160–180 lb rider, start at 7–8 clicks of low-speed and 5–7 of high-speed, counted out from fully closed. Lighter riders run more clicks out, heavier riders fewer. The table has every weight.
Does this work for my older Mezzer?
Only for the Gen 2 Mezzer Pro and LT Pro. The Gen 1 (2020–2022) has different pressures and one rebound dial, in its own guide on hayesbicycle.zendesk.com.
Related guides
Sources · last checked 2026-10-09
- Manitou Mezzer G2 Pro & LT Pro Set-Up Guide (Hayes Performance Systems, 2025)
- Manitou Mezzer Gen 2 set-up guides index (hayesbicycle.zendesk.com)
- Hayes Bicycle EU: Mezzer Pro G2 product page (travel range 140–170 mm)
- Hayes Bicycle EU: Mezzer LT Pro G2 product page (160–190 mm)
- Manitou Mezzer Pro Gen 1 Set-Up Guide (what the site chart currently follows)
Starting points from the manufacturer’s charts, not a substitute for your fork’s manual. Always confirm with a sag measurement and stay under the max pressure.