1 Tree + Bike

[brownrl]

Dears,

Inspired by IKK and his 1 tree + Trekking Poles, I am now on a mission to eventually go no tree. Part one was first to see if I could get 1 tree and mountain-bike to work. First successful test:

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I have sat & laid in this. I even dared to do a little "bounce".

I am using a 30cm peggy-peg as my anchor and I am blown away by those things, WOW! Nothing else came close to working like they do.

There are some refinements that I want to ask you guys about?

I want to avoid putting twisting or torsion forces on the seatpost, seat, and seat rails of the bike. Does any one have some thoughts?

[brownrl]

Here are more pics and close ups.

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[Pawistik]

Nice. I'm intrigued. I'm a canoe & kayak camper, and would like to get set up for bikepacking with my gravel bike, and get set up for hammock camping. One challenge is that in my region where I'd be biking I may not always have good trees (Saskatchewan, Canada - northern & central Saskatchewan will be no problem, but if I explore the southern prairie gravel, trees may be more scarce). So this shows that it's still a reasonable option.
Cheers,
Bryan

[JollyRoger70]

Great idea. I do hope that’s a superlatively tough saddle on the bike — I’ve had one of the rails that go through the clamp pop out of the socket in the frame of a saddle just from use (admittedly, that was a crappy saddle). If you can transfer the force to the seat post clamp area (assuming the post isn’t carbon, which doesn’t handle sideways strain well), it might save you a saddle. If you can lose the height on that anchor (which possibly you can’t), you can save strain on the seatpost by dropping it all the way, though based on the pics you need that six inches.


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[sunsetkayaker]

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It is a rough sketch, but you might try staking the bike vertical then running the strap over the seat allowing it to slide so it doesn’t put a sideways force on the bike.

[brownrl]

I've done a few more attempts and I believe that I have some improvement.

I will get some pics this weekend, however for now these two points I am finding critical.

1) The rails of your seat need to act as "deflection" and slide with your suspension, not be a point of load anchoring. Your bike should actually be able to sway a few cm not be "fixed".

2) An adjustable knot needs to be at the seat to adjust tension, resetting the anchor point in the ground is not optimal. The double lark's head knot so far is servicing me quite well.

I have a set of what I hope are strong trekking poles coming. Together with the bike I hope I can figure a no tree setup.

[brownrl]

Nice sketch!

Yes I was thinking something like that too because IKK had a piece of garden hose to run lines through to prevent tearing and ripping on his trekking poles idea. You are 100% correct that the bike seat needs to be able to slide a little.

Now that I find my words, the key is that the bike should only be taking vertical force down. Horizontal force, no. Bikes are not made for that and the peggy peg in the ground is more than capable.

Really thank you for putting thoughts on this.