The X on the right in the first pic....had one tire slip off...he dragged himself the rest of the way over the log bridge on 3 tires, with one rear tire shaving the bark off of the inner side of the inner log.

The X stayed on the bridge due to the transfer of grip from his butt cheeks clenching the seat fabric, to the remaining tires.



(He did that on the trip before...he skipped the bridge on this trip...go figure)