Mud is not one condition

The biggest mistake with mud is treating it as a single setting. Mud is context-dependent - it can be soft, sucking, slippery, sticky, rutty or hard-edged - and those call for opposite setups. Before you touch a clicker, decide which mud you are in.

The two poles

DEEP / sucking mud (behaves like sand). The ground is soft and pulls the bike down into its travel. You need SUPPORT: firmer compression to keep the bike up in the stroke, rebound the same or slightly slower, a touch more sag. Feel you want: the bike rides on top, the front does not dive, and the rear does not hang like an anchor coming out of corners.

SLIPPERY mud over a HARD base (roots, rocks, edges, ruts). There is a thin greasy layer over solid ground. This behaves like slippery hardpack: you want LESS firmness, FASTER rebound and more ground contact so the tyre does not pack down or deflect off the hard stuff underneath. Feel you want: the suspension reads the hard ground under the mud instead of hacking over it.

Most real mud sits somewhere between these two - read whether the base under the mud is soft or hard and lean the setup toward the matching pole.

Starting table (a) - MX DEEP-mud base

Setting	Change	Rider terms
Fork compression (fork_comp)	-2 stiffer	2 clicks in
Shock low-speed comp (shock_comp_ls)	-2 stiffer	2 clicks in
Shock high-speed comp (shock_comp_hs)	-1/8 turn stiffer	slightly firmer
Shock rebound (shock_reb_clicks)	-1 slower	1 click slower
Race sag (sag_race_mm)	standard to +2 mm	ride a touch higher
Front / rear tyre pressure	lower	more grip, self-cleaning

Starting table (b) - MX mud-on-HARD base

Setting	Change	Rider terms
Fork compression (fork_comp)	0 to -2 stiffer	0 to 2 clicks in
Fork rebound (fork_reb)	+1 to +2 faster	1-2 clicks faster (clicks out)
Shock low-speed comp (shock_comp_ls)	0 to -2 stiffer	0 to 2 clicks in
Shock high-speed comp (shock_comp_hs)	0 or +1/8 softer	leave or slightly open
Shock rebound (shock_reb_clicks)	faster if it packs	more clicks out

Test and adjust

• Front dives / ploughs -> compression -1 to -2 (clicks in).
• Front stays low after bumps -> fork rebound faster (clicks out).
• Rear squats out of corners -> shock rebound faster, or shock LSC -1 (one click in, firmer).
• Rear spins -> shock LSC softer (clicks out).
• Rear kicks -> rebound slower (clicks in).
• Rear steps out sideways -> usually packing; rebound faster (clicks out).

Note: a clicker value is clicks OUT from fully closed. Firmer compression and slower rebound mean FEWER clicks out; softer and faster mean MORE clicks out. At the track riders count clicks IN to go firmer/slower. + means further open (less damping), - means turning in (more damping). Signs on mm and bar do NOT follow this rule.

The one-sentence rule: Deep mud needs support. Slippery mud needs contact. Packing needs faster rebound. Kicking needs slower rebound.

Sources: LAISA condition-factors "mud is not one condition" founder ruling (tuning v2.5); MXA and Keefer Inc. mud/wet setup guides; PulpMX mud-race notes; Race Tech Suspension Bible.

A starting point, not a safety guarantee - always test yourself.