Recumbents and all feet forward machines
5 posts • Page 1 of 1
Went for an overnight trip with self-built suspension trike, tag-along, Burley Nomad trailer. Five year old on tag-along, and wife on another bike.
Rough road route with a lot of dirt and some very steep hillclimbing (a lot steeper than shown here!).
(Sorry for bad phone pics)
Good fun - but it kinda made a weekend seem like a week!
The rear suspension â€“ with a vertical load of more than 60kg working through it â€“ was magnificent. I inflated the rear pressure bottle to a static 60 psi and shut down the damper valve a little. This gave a ride that was quite amazingly good â€“ I wouldnâ€™t even feel the bump when the trikeâ€™s rear wheel met it; I only knew there'd been a bump when I felt the tug as the tag-along wheel passed it.
The front air reservoirs needed about 22 psi in them â€“ slightly more in the right-hand one to counter an asymmetry in the pannier loads (water was in the right-hand pannier RT60 â€“ 10kg). I varied the position of the damping valves for different road surfaces. On bumpy sections I opened the valves right up. However, on smooth sections taken faster this damper setting allowed the trike to lean â€“ with the extra weight up high and the lowish roll centre, the trike could then feel tippy-toed â€“ best characterised by flopping from one side to the other. So on smooth surfaces I positioned the damper adjustment so fluid flow was only just occurring, which stiffened roll damping.
Alexander stood on the pedals, knees flexed, for any large bumps I warned him about, and the tag-alongâ€™s large 20 inch tyre was set very low in pressure. The Nomad trailerâ€™s tyres were also set low in pressure, but on bigger bumps it hopped around a bit. The trailer carried only sleeping gear so it was fairly light.
On this route Iâ€™d score the suspension at probably 8/10. Next time, with a similar high-mounted load, Iâ€™ll reduce the volume of the front spring pressure bottles from 600ml to 300ml (the same as I run on the back); this will give a faster rising front spring rate and so better control body roll.
Thanks for sharing those are great images only wish I could be there camping with you makes me a little sick but joyous at the same time just glad you enjoyed yourself. Wish I wasn't bogged down with work so much but that's life I guess.
5 posts • Page 1 of 1
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