Learn to ride a rock garden: read the line, set speed beforehand, unweight the front wheel, spring from the legs. 5 steps with milestones and safety.
The honest answer first: you ride a rock garden in the active position, with a line you have read beforehand, at the speed you set before the garden, and without braking on the rocks. You unweight your front wheel and your arms and legs spring. BASPO explicitly names riding through a rock garden with the front wheel unweighted as an example of rolling over many obstacles in a row [1].
How hard is it? The Single Trail Scale assigns blocked passages with many larger boulders to grade S3, which requires "very good command of biking and unbroken concentration". Relaxed rolling is rare there [2]. A rock garden is therefore not for beginners. Getting started takes hours, reliability on different gardens takes months (experience-based).
Why the effort? Because unbraked wheels roll better over obstacles and the suspension works better [3], which helps you keep speed and control. At the same time the risk is real: in an analysis of 534 mountain bike crashes the mean speed before the crash was 33.7 km/h, and in 75.3 percent of the over-the-bars crashes above 30 km/h [4]. A rock garden punishes speed and mistakes faster than any other obstacle.
In a rock garden you are not fast, you are controlled enough not to be slow.
Walk the garden on foot. Look for the line that leaves your rear wheel free and note two or three anchor points (practice). If it shows no speed you control, it is not your garden today.
Milestone: you point out your line with your finger and can describe it.
Brake before the garden, not in it. An unbraked wheel rolls better over obstacles, the suspension works better [3]. One or two fingers stay on the brakes [7].
Milestone: you reach the start of the garden at target speed without braking.
Arms and legs slightly bent, centre of mass central to slightly back [5]. Just before every rock you unweight the front wheel, your pre-tensioned arms absorb the impact [1].
Milestone: the front wheel does not jump from rock to rock, it stays on the ground.
Your legs and arms are the suspension. You unweight the rear wheel by bringing your centre of mass forward again before the impact [1]. Eyes far ahead, not on the front wheel.
Milestone: you ride a garden with five to ten rocks without putting a foot down.
At the end of the garden you return to the base position [8]. Breathe, loosen your hands, look back: how many braking moments did you have in the garden?
Milestone: three runs without braking in the garden.
Rock gardens are safety-critical. The Single Trail Scale rates under ideal conditions, bad weather raises the difficulty, and danger, light and speed are not reflected in the scale at all [2]. Over the bars was the sequence in 55.2 percent of the 534 analysed crashes [4]. The head and upper extremity are the most common injury sites [10].
In an analysis of 300 falls, dismounting during the descent was associated with lower odds of head impact (odds ratio 0.11, confidence interval 0.02 to 0.59, so very uncertain) [11]. That is an association from video observation, not a guarantee, but it is an argument for walking. In a meta-analysis across cyclists, a helmet cut serious head injuries by about 60 percent [12], a figure for cycling in general. This guide explains and motivates, it does not replace supervised training.
Push with a clear conscience. Not every garden fits every form on the day. The video analysis shows that those who dismounted during the descent had lower odds of head impact (odds ratio 0.11) [11]. The decision to push is part of good technique, not its opposite.
And one more honest sentence on form on the day: grip endurance is the first loser in long rock gardens. In a study of downhill riders, grip endurance was the second strongest factor for ride time after riding skill [13]. If your hands burn, it is time to get out of the garden, not to grit your teeth.
Look at the garden on foot, choose a line, set your speed beforehand, active position, unweight the front wheel, spring from the legs, do not brake on the rocks [1] [5] [3].
Depending on the density and size of the rocks, S2 or S3. At S3 passages are blocked, relaxed rolling is rare and very good command of the bike is required [2].
Before it yes, in it no. An unbraked wheel rolls better, the suspension works better [3].
When the speed seems uncontrollable to you or you cannot see the line. Dismounting was associated with lower odds of head impact in the video analysis (odds ratio 0.11, very uncertain) [11].
Stoppie (Endo) on a Mountain Bike: Lifting the Rear Wheel with the Front Brake