11 biketrial techniques for all kinds of situations
Using the bunny hop approach at any speed (raw street style).
Rolling over the obstacle, a smooth quiet move.
In one hop sideways, to bring both wheels on the same level.
Sideways, with a rear wheel hop, when there is no room for both wheels and it is too high for using the static hop technique.
With a rolling pedal kick, for a fluid smooth ascension on low obstacles.
From a static balanced position with the front wheel already onto the obstacle
(wheel transfer for accurate positioning in time trials).
Picking the front wheel onto the obstacle to support a smooth wheel-swap.
Banging or hitting the front wheel on the upper edge of an obstacle
(for higher stuff where rolling over or the bunny hop are not possible)
Hooking the bash plate onto the obstacle, by landing a slow bunny hop or a pedal hop (that way you climb in two steps, but you need a good crank protection).
Hooking one pedal onto a wall edge sideways, and pulling up the bike.
Hooking the front wheel to an edge, to pull yourself up over huge obstacles
(a two-step move, for the pros).
What pressure for the tires?
It depends on the ground and the sharpness of the edges you climb on. The sharper the edge, the more inflated you want the tires so that you don't get a double pinch flat when banging the back wheel on it (the unfamous snake bite, rim rails pinching the tube against an edge). For round blunt obstacles like wood logs, less pressure gives extra gripping because the tire can litteraly grab the edges and shapes. less pressure also gives extra bouncing for landing, and is more comfortable. Fat tires (2.5" or wider) are the best, and allow a lower pression than thin tires, so more comfort and more grip.