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-   -   home built xtracycle... (http://www.bikeforums.net/utility-cycling/377128-home-built-xtracycle.html)

johannrissik 12-02-10 10:43 AM

What's all that white stuff on the ground? Dust? ;)

Happy winter cycling.

Fizzaly 12-08-10 03:11 PM

Ive looked at this thread enough, im finally building a long bike. Just got back from the co-op and picked up some piece of crap mongoose full suspension for 5.30$ will probably start on it tomorrow, will put up plenty of pics during the build

Fizzaly 12-09-10 06:22 PM

Well i spent about an hour toying with the two bikes and mocked up a quick setup, using two sockets as spacers for right now just to get the spacing right and to take some measurements, gonna probably wait till the weekend till i do any more. A trip to the hardware store and a couple of hours on sat and other than the rack it should be done. I decided to just use two crappy bikes for my first xtracycle build when i finish and see how much i like it ill probably do another build using better parts and bikes as is im 6bucks into this so at the very least it will be a fun time killer. And sorry for the crappy pics i guess i dropped my actual camera one too many times the other day:)
http://i81.photobucket.com/albums/j2...2-09170201.jpg
http://i81.photobucket.com/albums/j2...2-09170215.jpg

Fizzaly 12-09-10 07:29 PM

Better pics and i took it for a ride, has a few wobbles but rode alright.
http://i81.photobucket.com/albums/j2...s/DSCF2160.jpg
http://i81.photobucket.com/albums/j2...s/DSCF2161.jpg

longhaultrucker 12-12-10 01:28 PM

all these long bikes are making me imagine a foldable cot on one side that you could unfold into a nice bed for overnight trips, little alum. for the frame some removable legs for support and some tent bows to keep the bug screen up and out of the way.......

Gareth 12-12-10 03:18 PM

1 Attachment(s)
Look at what I currently have on my work bench :lol:

Fizzaly 12-15-10 05:29 PM

Well i ditched the magna frame the wobble i was feeling was the frame it self, decided to use my retired commuter frame the 95' raleigh M-50 did some more temp. work and already its way more stable than the magna frame. Hopefully ill mount another rack this week and get started on the final rack build, im still not sure if i want to build one from scratch or just do the two racks back to back thing.
http://i81.photobucket.com/albums/j2...Picture003.jpg

Sixty Fiver 12-15-10 06:56 PM

Quote:

Originally Posted by Fizzaly (Post 11938927)
Well i ditched the magna frame the wobble i was feeling was the frame it self, decided to use my retired commuter frame the 95' raleigh M-50 did some more temp. work and already its way more stable than the magna frame. Hopefully ill mount another rack this week and get started on the final rack build, im still not sure if i want to build one from scratch or just do the two racks back to back thing.
http://i81.photobucket.com/albums/j2...Picture003.jpg

Part of the extrabike design we all seem to be so fond of incorporates the dual rack and deck assembly to stiffen up and stabilize the frame and increase load capacity... I have also added 1 inch tubes along the chain stays to add some additional stiffness and serve as a tie down point for bunjee cords.

My extra bike has seen 1000's upon 1000's of kilometres, is entering it's 3rd winter and is still rock solid... since I have the capability to do so I will be replacing my Al racks with a custom brazed rear deck / rack which should make things even stronger.

But the key in integrating the rack and deck into the frame design as individually, these parts are fairly strong but when you mate them together the sum of the whole exceeds the sum of the parts used.

I have carried 200 pounds of gear on my bike and there isn't a hint of flex in my bike.

One should use triple bar racks instead of the lighter use double bars as these too are much stronger.

Fizzaly 12-15-10 09:05 PM

I think eventually im going to weld up a steel rack to go on it, for now im gonna build up with parts i already have. Ive got another cheapo rack im going to mount and im thinking about just getting a some wood for the deck, i was thinking about doing the same as you with the long board deck but i dont want to cut one up. This build is mostly just for fun, i would like to down the road have a long bike made for me but money wise right now isn't the best time. Im still less than 10 bucks into this and the only other thing i need to buy is a long rear derailleur cable and the wood deck so total will probably be around 20 dollars max. It will also serve as a good learning experience for future projects.
Mostly im just glad i was able to once again repurpose the M-50

christophe31 12-19-10 05:23 AM

2 Attachment(s)
Hello,

i'm christophe from toulouse in france and this is a picture of the 2 long tail i have build

Attachment 182738
Attachment 182737



and this is how i build the first http://www.youtube.com/watch?v=TgY3RIGASbA

bye,

Christophe.

Fizzaly 12-21-10 08:47 AM

I got it going with multiple gears even, rides wonderfull very little flex, broke chain though, i just had to try and do a wheelie(almost did one) Now i just need to finish the temp rack set up as, for now im just going to go with the two cheaper racks back to back and just add some additional support, i might add some sort of a "shelf" to one side as my main reason for this build is to make it easier to haul frames and wheels around so we shall see how i go abouts that. All in all im quite satisfied with it so far picked up the tandem derailleur cable so im not a bit over 16$ into the project and still having fun with it. Once i get a rack finished im gonna throw some satin black over it and ride her. I am going to down the road upgrade parts as most are from crappy walmart bikes but they will work for the time being.
http://i81.photobucket.com/albums/j2...loadfile-1.jpg
http://i81.photobucket.com/albums/j2...wnloadfile.jpg

wpryan 12-23-10 06:24 PM

Why not leave the bottom bracket intact on the donor bike (I understand this won't work for a one-piece crank) and just take the pedals off. The spindle width is already somewhere around 110 mm, so it wouldn't take too much bending on the main bike to make the dropouts match up. In addition, wouldn't it make sense to keep the top tube on the donor bike (on a "boys" model) and cut it to length to get the right geometry?
I'm intrigued, and I want to try this.

EDIT: Sorry, I wrote this after having read only the first page of the thread, not realizing there were 16 pages so far. I'm all caught up and my questions, for the most part, have been answered. On another note, I bet I took eight of those X-Mart donor frames to be recycled this summer. Yes, I'm kicking myself, but they shouldn't be too hard to come by. Thanks to all for the posts and the pictures!

wpryan 01-13-11 12:11 AM

3 Attachment(s)
Since the last post I found a donor FS bike at the pawn shop for $16, and had another good candidate for the front, a Trek 850 Antelope that had a bunged-up rear derailleur hanger. The Trek was otherwise in good shape, with plenty of nice stuff, considering it was free. I basically sailed with what has seemed to work for everyone else here, but I did have a good closeup on the connection and how I did that. I used the pivot point instead of the bottom bracket, and took the bushings out of the old frame to use in the rear triangle. Then, as the wheels from the donor Mongoose were something I would not likely use for anything, I took apart the cup-and-cone rear axle and used the partshttp://bikeforums.net/attachment.php...hmentid=185869 for the main connection. The cup bolts were perfect for just outside the bushings, and the set bolts worked well on the inside of the dropouts.http://bikeforums.net/attachment.php...hmentid=185868
Now I'm left with an unused bottom bracket, and had an idea. Maybe I can find a way to use the old spindle/axle to attach a kickstand system. I'll post any results.http://bikeforums.net/attachment.php...hmentid=185873

wpryan 02-05-11 02:31 PM

2 Attachment(s)
http://bikeforums.net/attachment.php...hmentid=188811http://bikeforums.net/attachment.php...hmentid=188810
Thanks to everyone for the ideas and inspiration for "Stretch." Everything came together very well on the back, especially my old license plates. I like that even better, I think, than the requisite skateboard deck. Add the studded tires (see "home made DIY studded tyres" in the Winter Cycling forum), and it's perfect for the skiff of snow we got last night. I see a lot of miles on this in days ahead. Thanks again.

Sixty Fiver 02-05-11 03:46 PM

Quote:

Originally Posted by wpryan (Post 12183396)
http://bikeforums.net/attachment.php...hmentid=188811http://bikeforums.net/attachment.php...hmentid=188810
Thanks to everyone for the ideas and inspiration for "Stretch." Everything came together very well on the back, especially my old license plates. I like that even better, I think, than the requisite skateboard deck. Add the studded tires (see "home made DIY studded tyres" in the Winter Cycling forum), and it's perfect for the skiff of snow we got last night. I see a lot of miles on this in days ahead. Thanks again.

"Stretch" is what I named my bike... it is not a stretch to understand why.

:)

Nice work and I bet you are enjoying the snow more than some.

wpryan 03-18-11 10:29 PM

1 Attachment(s)
Now that I've got the xtracycle built up, I was looking at the donor rear triangle and thinking of a way to make that work on a recumbent. Based loosely on a Bacchetta Giro, I added the wrinkle of a rear suspension. Attached is a rough sketch of my thoughts. I suppose I might have put this entry in the recumbent or framebuilder spot, but neither place seemed to have anyone who was working with this kind of stuff.
Does anyone have any ideas, suggestions or general criticism of the idea? I love the creations I've seen here, and value your opinions. Otherwise, I'm going to start scrounging some parts and put my limited welding skills to use. Actually, I cut a 2x4 to attach to the rear triangle to get a better bead on measurements and distances, but I'm still mainly in the idea stage. Thanks in advance for your help.
http://bikeforums.net/attachment.php...hmentid=194068

Sixty Fiver 03-18-11 10:52 PM

From last Sunday...

(image unavailable)

grinningfool 03-19-11 06:17 PM

Sixty Fiver, do you always bring 3 gallons of milk when you go on a picnic ? :lol:

badmother 03-28-11 01:42 PM

Quote:

Originally Posted by wpryan (Post 12380704)
Now that I've got the xtracycle built up, I was looking at the donor rear triangle and thinking of a way to make that work on a recumbent. Based loosely on a Bacchetta Giro, I added the wrinkle of a rear suspension. Attached is a rough sketch of my thoughts. I suppose I might have put this entry in the recumbent or framebuilder spot, but neither place seemed to have anyone who was working with this kind of stuff.
Does anyone have any ideas, suggestions or general criticism of the idea? I love the creations I've seen here, and value your opinions. Otherwise, I'm going to start scrounging some parts and put my limited welding skills to use. Actually, I cut a 2x4 to attach to the rear triangle to get a better bead on measurements and distances, but I'm still mainly in the idea stage. Thanks in advance for your help.
http://bikeforums.net/attachment.php...hmentid=194068

There is plenty stuff like this on the net, just look around. There is a 2"x4" recumbent looking much like the one you presented. Try the Alt Bike Culture thread.

Sixty Fiver 03-28-11 01:50 PM

Quote:

Originally Posted by grinningfool (Post 12383324)
Sixty Fiver, do you always bring 3 gallons of milk when you go on a picnic ? :lol:

Only when I am making 3 gallons of home made loco cocoa... :)

http://www.ravingbikefiend.com/bikep...eridefood2.JPG

LucianTheOne 04-05-11 04:57 AM

I sold to a friend my first Xtracycle, and I really need to bild another one. I'm incomplete whitout it. I have most of the parts, but I hezitate between a clasic transmision 3x8 and a gear hub Nexus 8.
Until now I did'nt seen a Xtracycle whit Nexus 7 or 8. It will be enough? Are many hills in my region, and I carry big loads.

That was the last ride whit my first Xtracycle.
https://lh4.googleusercontent.com/__...0/DSC05041.JPG

artur elias 04-05-11 08:19 AM

Quote:

Originally Posted by LucianTheOne (Post 12460119)
I sold to a friend my first Xtracycle, and I really need to bild another one. I'm incomplete whitout it

I sympathize with you!

No, I didn't sell my first one, but I'm already deep in the processo of building my second and better one. I bought a nice old hybrid/touring Giant a couple of months ago, than went after a cheap Y-frame for the rear triangle, so I don't have to use a tall hard tail rear end like I had to in the first build; and other small stuff.

Bike has already been tested, cargo area is the next step.

I'm making pictures of every step this time, so I can put a tutorial online.

Back to your question:

I had to cope with 9 gears only in my first Xtra, because of a chain management problem wich rendered the small chain ring impossibe to use. I miss the low gears often, and that's actually one of the reasons to try another (better) build.

badmother 04-06-11 02:47 PM

Quote:

Originally Posted by LucianTheOne (Post 12460119)
I sold to a friend my first Xtracycle, and I really need to bild another one. I'm incomplete whitout it. I have most of the parts, but I hezitate between a clasic transmision 3x8 and a gear hub Nexus 8.
Until now I did'nt seen a Xtracycle whit Nexus 7 or 8. It will be enough? Are many hills in my region, and I carry big loads.

That was the last ride whit my first Xtracycle.

Time to build another one for sure! I use a Nexus7 on Dogbike2 http://www.bikeforums.net/showthread...+a+new+dogbike . Justb put a "new" set of wheels on it today (no pix yet) w 590-37 cream tyres. The hub in the 622-47,s that I used for two years need a rest and a makeover. Also 622-47 is a bit much, had some problems with rubbing (rear triangle is made for 552, front bike is for 622.

Also I just built (almost finished) another one. Are going to use only bags on that one, no "wideloaders". It is 3x7 for now (90`s mtb) but if I keep it i`ll convert it to Nexus7. Soo much easyer. Just make sure you choos the right chainwheels for front and rear. I gear them for hills, not for speed.

Sixty Fiver 04-06-11 04:48 PM

My next upgrades will be to build a new rear rack system and perhaps add an electric power assist to the front wheel to make it an AWD extra bike and make those long loaded climbs a little easier.

badmother 04-07-11 04:04 AM

Quote:

Originally Posted by Sixty Fiver (Post 12469436)
My next upgrades will be to build a new rear rack system and perhaps add an electric power assist to the front wheel to make it an AWD extra bike and make those long loaded climbs a little easier.

Make sure you give us pix! I`ll try to take AND post some this weekend to show what I did on the new build. Not much different from before, but trying to save some weight where it is possible and also trying to atach BOTH the rear racks to the rear triangle. Partly becouse I want it far back, away from my feet and partly becouse I want it to be easy to mowe the "extra" part to a new front bike frame if I want to move it to a differen "front bike frame".


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