Front Wheel Drive build

Joined
Nov 20, 2019
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Utah, USA
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northwestskater.com
The other problem you have is the actual angle of the seat and NOT it's position in relation to the frame ?

I have been caught out by this myself ?



It is pretty obvious these 2 recumbent s have different different seat geometries ?



and the low racer seat cannot be made to sit at the same angle as the yellow cruiser recumbent

Paul
I'm missing the yellow cruiser photo?
 
Joined
Sep 16, 2018
Messages
598
Location
Netherlands
He can modify the seat with a pillow or bend it a bit. What you say, with a pillow is better, but I think tha
The other problem you have is the actual angle of the seat and NOT it's position in relation to the frame ?

I have been caught out by this myself ?



It is pretty obvious these 2 recumbent s have different different seat geometries ?



and the low racer seat cannot be made to sit at the same angle as the yellow cruiser recumbent

Paul
He can mod the seat with what you say a pillow.
But yea, the seat not modyfied is better more straight.
 
Joined
Oct 19, 2012
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1,175
Location
Wakefield, UK
You can't add suspension using just one pivot. You also need pivots at the bottom of the forks and one at the handlebar end, effectively pivots at each point of the triangle. Without those extra pivots you'd rip welds apart. With suspension the length between top of the steerer tube and wheel axle will vary and as such the angles that triangle makes will vary too. This will put strain on the welds to give as there is no mechanism to deal with that variable length / angles. Those pivots are likely to have enough slop in them to make pedalling an interesting experience. You'd really need to use heavy duty rod ends in pairs for the pivots to have any chance.

A sprung seat will likely sap pedalling effort.
 
Joined
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Messages
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Utah, USA
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northwestskater.com
You can't add suspension using just one pivot. You also need pivots at the bottom of the forks and one at the handlebar end, effectively pivots at each point of the triangle. Without those extra pivots you'd rip welds apart. With suspension the length between top of the steerer tube and wheel axle will vary and as such the angles that triangle makes will vary too. This will put strain on the welds to give as there is no mechanism to deal with that variable length / angles. Those pivots are likely to have enough slop in them to make pedalling an interesting experience. You'd really need to use heavy duty rod ends in pairs for the pivots to have any chance.

A sprung seat will likely sap pedalling effort.
You are correct. So I will likely add another pivot point.
 
Joined
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northwestskater.com
By way of an update. I've made a few changes, as I was thinking I would.

I added disc brakes front and rear, modified (bent) the seat frame a bit, added a front shock, relocated the center boom so it's lower, changed the handle bar configuration, and made a separate attachment point for chain stays. Whew!
I took it for a spin on my little street, but haven't ridden it extensively yet. Still seems to ride just fine. I'm excited to see how it handles the bumps on the bike path.

 
Joined
Nov 20, 2019
Messages
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Location
Utah, USA
Website
northwestskater.com
That looks like it'll be easier to get on and off.
I'm not sure it is. The seat is about the same height. But, that was my goal, not to make it worse by adding front suspension.
I used a suspension fork designed for a 24" wheel, and put a 26" wheel on there. I made some adjustments and it seems to work, so far.
 
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