haulincolin
100 W
Hi everyone!
Several years ago someone gave me an old ATP Double Vision tandem recumbent frame. I had to do some frame repairs, and then built it up and rode it that way for a while. Later, I decided I would rather have a half-upright/half-recumbent style tandem like a Bilenky Viewpoint or a Hase Pino. It seemed like there would be so many advantages over a regular tandem--both riders get a nice view and their heads are closer together for easy conversation, shorter wheelbase for better handling, if close enough in height, riders can swap out positions for variety, and I figured I could build a big rack and swap it in place of the front seat when I wanted a cargo bike rather than a tandem.
So after a few years of planning, amassing parts, and working on it in my spare time, this year I finally got it all together! My plans evolved to include an extended rear end with enormous cargo bags and an electric assist. I've been riding it for a few months now (often on my own, but sometimes with a stoker) and it's so much fun! I bought the Magic Pie because I wanted a strong hub motor in a 20" wheel without having to deal with very short spokes. I fried the internal motor controller a couple weeks ago, but that's ok because I needed an excuse to upgrade to something bigger anyway. Now I have a Grinfineon on the frame, and connectors on the way to wire everything together.
New phase wires and hall wires coming out of the Magic Pie. I customized a beefy BMX fork with thicker dropouts and disc tab. Currently set up with a 203mm rotor and a BB7, but I plan to get a hydraulic brake at some point.
SRAM S-7 jackshaft between the stoker and captain gives the stoker the ability to adjust their cadence relative to the captain. This combined with the front freewheel on the captain's cranks (thanks sickbikeparts!) gives the riders fully independent freewheeling.
Phantom chainring keeps the chain from rubbing on the frame. This was actually a design mistake on my part. I thought everything would clear in the position I welded the bottom bracket, but I was wrong.
Nice big mud flap on the back. Not a very good picture, but there's a sleeve there for a dummy axle for hauling another bicycle. You might also notice the Rohloff peeking out from in there.
Someday I'll get around to getting a professional paint job, but in the meantime, everything is getting a nice sheen of rust. The stainless rod I used when TIG welding doesn't rust, and looks pretty cool at the tube intersections.
Truly enormous bags. My Chrome Metropolis fits in one with room to spare. Thanks Martina at Swift Industries (they don't usually do custom work, but I know her personally and was able to convince her).
Appropriately large centerstand for a large bike. I was considering making a bearing or bushing pivot, then realized that I could easily use an old bottom bracket for the purpose! Now the really fun part: I took another one of those front freewheel cranks, helicoiled it for left-hand pedal thread, installed it on the left, and made a linkage to my centerstand. What this means is that backpedalling deploys the centerstand. Now when I come to red light, I don't even get off the bike; I just backpedal sharply, and pop the bike up onto the centerstand. Then, when it's time to go, I just pedal off the stand, and it swings up. A weird side-effect of all this is that rolling the bike backwards deploys the kickstand. This is sometimes handy, but can be inconvenient, so I have a quick-release pin that allows me to disconnect that linkage.
Hope you all enjoy the pictures. Let me know if you have any questions!
Colin
Edit: figured out that pics have to be <= 800px wide to show up.
Several years ago someone gave me an old ATP Double Vision tandem recumbent frame. I had to do some frame repairs, and then built it up and rode it that way for a while. Later, I decided I would rather have a half-upright/half-recumbent style tandem like a Bilenky Viewpoint or a Hase Pino. It seemed like there would be so many advantages over a regular tandem--both riders get a nice view and their heads are closer together for easy conversation, shorter wheelbase for better handling, if close enough in height, riders can swap out positions for variety, and I figured I could build a big rack and swap it in place of the front seat when I wanted a cargo bike rather than a tandem.
So after a few years of planning, amassing parts, and working on it in my spare time, this year I finally got it all together! My plans evolved to include an extended rear end with enormous cargo bags and an electric assist. I've been riding it for a few months now (often on my own, but sometimes with a stoker) and it's so much fun! I bought the Magic Pie because I wanted a strong hub motor in a 20" wheel without having to deal with very short spokes. I fried the internal motor controller a couple weeks ago, but that's ok because I needed an excuse to upgrade to something bigger anyway. Now I have a Grinfineon on the frame, and connectors on the way to wire everything together.
New phase wires and hall wires coming out of the Magic Pie. I customized a beefy BMX fork with thicker dropouts and disc tab. Currently set up with a 203mm rotor and a BB7, but I plan to get a hydraulic brake at some point.
SRAM S-7 jackshaft between the stoker and captain gives the stoker the ability to adjust their cadence relative to the captain. This combined with the front freewheel on the captain's cranks (thanks sickbikeparts!) gives the riders fully independent freewheeling.
Phantom chainring keeps the chain from rubbing on the frame. This was actually a design mistake on my part. I thought everything would clear in the position I welded the bottom bracket, but I was wrong.
Nice big mud flap on the back. Not a very good picture, but there's a sleeve there for a dummy axle for hauling another bicycle. You might also notice the Rohloff peeking out from in there.
Someday I'll get around to getting a professional paint job, but in the meantime, everything is getting a nice sheen of rust. The stainless rod I used when TIG welding doesn't rust, and looks pretty cool at the tube intersections.
Truly enormous bags. My Chrome Metropolis fits in one with room to spare. Thanks Martina at Swift Industries (they don't usually do custom work, but I know her personally and was able to convince her).
Appropriately large centerstand for a large bike. I was considering making a bearing or bushing pivot, then realized that I could easily use an old bottom bracket for the purpose! Now the really fun part: I took another one of those front freewheel cranks, helicoiled it for left-hand pedal thread, installed it on the left, and made a linkage to my centerstand. What this means is that backpedalling deploys the centerstand. Now when I come to red light, I don't even get off the bike; I just backpedal sharply, and pop the bike up onto the centerstand. Then, when it's time to go, I just pedal off the stand, and it swings up. A weird side-effect of all this is that rolling the bike backwards deploys the kickstand. This is sometimes handy, but can be inconvenient, so I have a quick-release pin that allows me to disconnect that linkage.
Hope you all enjoy the pictures. Let me know if you have any questions!
Colin
Edit: figured out that pics have to be <= 800px wide to show up.
I also want the ability to go long distances without recharging. This bike makes a great overnight camping rig. So I have the following parts on order:
