Locally, each of our trails has its own boss that’s responsible for keeping things flowing, arranging repairs and maintenance and otherwise keeping it clear of fallen trees, etc. For the latter, I know at least one rider that tends to carry all manner of small cutting utensils in his pack at all times. Now, he may have a smaller, lighter option will full size tree cutting power.
The Boreal21, from Agawa Canyon, is a regular size hack saw capable of cutting 6″ trees straight through that folds down to a thin, lightweight package that easily slips into your (large) hydration pack. See it folded in and out below…
In one quick motion, the 21″ blade swings and locks into place, providing plenty of stroke length and cutting power. Closed, the sharp bits are covered and kept safe. The frame is made of high strength extruded and anodized aluminum with stainless steel hardware. Weight is 500g.
The blades are replaceable and come in four flavors – All Purpose, Dry, Aggressive “Sydney Rancher II”, and Hunters blades. Retail is $65 to $69 depending on blade, available with yellow or green handles and black or clear anodized frames.