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DuncanM23
01-08-2015, 10:34 AM
Hi
Introductory post - I live in Oxford and I want to build some Zombie bikes! :)

I'm currently rebuilding this BMX
https://farm8.staticflickr.com/7564/15399889664_df27aec2f9_z.jpg (https://flic.kr/p/psQsF3)DSC_0591 (https://flic.kr/p/psQsF3) by duncancmartin (https://www.flickr.com/people/90461577@N00/), on Flickr

But as soon as that's done, I want to start on a trike. I really like the look of the Warrior, but I got the plans for the StreetTrike as well. I've never ridden a recumbent, let alone a recumbent trike, but I've ridden pretty much every sort of regular upright going (and I currently own 4!).

I've got a garage and a MIG welder that I can use (and an old inverter box that I could do scratch start TIG/ARC with if I get around to learning), and there's a bike recycling shop in town that I can get scrap bike frames from for free. :)

Cheers
Duncan

darnthedog
01-08-2015, 10:46 AM
Welcome to the fun- Sound like your already off to a great start with Supply's, Welding choices and plans.

You even posted a photo which is great. I look forward to your builds. And just and FYI there are folks that combined the best of both the Streetfox and Warrior.

And just an FYI we love to watch the build progress as well as the final product. But I'm sure you already knew that. So welcome once again.

markc
01-08-2015, 11:42 AM
welcome, there's a couple of us in oxford, looks like that's going to be a nice bike when finished, if your near Kennington there's a good steel yard with very good price depending what you need

Twinkle
01-08-2015, 12:20 PM
Hi Duncan

and welcome to the forum from another UK based Zombie

Take a look through the forum posts and threads there are plenty of UK based Trikers and trikes , Trikes are great fun to ride ,

Mig is good enough for frame building

regards emma

DuncanM23
01-08-2015, 01:19 PM
Hi MarkC
That's B&M, right? I've been there for steel when I was learning to weld and make car panels. I live in Barton, but can drive there on my way to work (though the traffic there has been pretty horrendous recently). I'll probably get the tube I need from there (and hopefully some scrap bits of plate for the axle stubs and things). I've got a big bit of 1mm zintec sheet sitting here, but I don't think there's much call for that on the trike.

Hi Emma
I figured that MIG would be fine with the thickish wall tubes the trike plans specify. And I'm actually reasonable at sticking metal together with the MIG, I suck at scratch starting the TIG! Do all your trikes have suspension? I prefer the look and sturdiness of the warrior fixed rear, but there are a lot of bad roads and speedbumps around here, and I assume you can't use your legs to suspend you on a trike!

And thanks for the welcomes. :)

Thanks
Duncan

Twinkle
01-08-2015, 01:57 PM
Hi Duncan

The mkII does not have suspension , it uses a MTB rear triangle bolted rigid on the rear end , The 20/20 e-trikes use a 20" rear end with 2.1 slick tyres and suspension . If you go the non suspension route use bigger tyres with a low rolling resistance , eg Eastern burnouts , big apples or similar to dampen the bumps .

here is the link to the Streetfox with USS and disc brakes less suspension .
http://forum.atomiczombie.com/showthread.php/8484-MKII-tadpole-trike?highlight=mkII+tadpole


Tried to PM you you need to set up your PM status

regards emma

DuncanM23
01-08-2015, 03:24 PM
I set up my PM status.
Busy reading as many threads as I can!
Cheers
Duncan

markc
01-08-2015, 03:25 PM
not so sure what they have done is going to work ,its the same metal place though, I'm north oxford (Summertown) but go to Barton frequently as I have kids that live there or kids that don't now where the curbs are so just got back after retrieving son and bike after he had an argument with one.

Radical Brad
01-08-2015, 08:50 PM
Greets, and thanks for your support!

Brad

FrankCrank
01-09-2015, 01:11 AM
...one thing Oxford doesn't need is another bicycle, so go grab a few and turn them into trikes :evilgrin:......

Big Bunny
01-10-2015, 11:05 AM
Hi there and welcome to another UK Zombie !

At least you will have an almost endless supply of donor bikes. I’m in Cambridge so have the same benefit. Nearly at the end of my first AZ Street Fox build. I say “first”, already planning the second ! Having learned so much from the great folks who frequent these forums.

Once you start, you just can’t stop …….

Cheers
Si

DuncanM23
01-14-2015, 06:12 AM
I'm not sure that the supply of zombie capable bikes is so plentiful! So far, I have scored 2 bikes, and both are lugged/brazed ladies bikes. The latest one (from freegle) is below. It actually seems to be half decent - the brakes and gears work anyway! A cleaned up chain and inflated tyres and it might even be useful as a bike in it's own right, in which case I will just pass it on. No further on my quest for bike parts (though I can part exchange my bike polo bike for bits at my favourite bike shop :) ).
https://farm9.staticflickr.com/8587/16278083375_e3e988a485_z.jpg (https://flic.kr/p/qNrr4V)20150114_110005 (https://flic.kr/p/qNrr4V) by duncancmartin (https://www.flickr.com/people/90461577@N00/), on Flickr
I hope to be able to collect some broken kids bikes (through freegle again) sometime in the next week, and visit the steel shop (and maybe the tip) next week too!
Cheers
Duncan

bambuko
01-14-2015, 06:47 AM
It simply takes time....
You have to make habit of visiting dumps etc every time you passing them, and the good ones don't appear everyday :(

DuncanM23
01-14-2015, 02:18 PM
Second score of today - 2 kids bikes. :)
Freegle is really good...
https://farm8.staticflickr.com/7548/16278942981_683e630423_z.jpg (https://flic.kr/p/qNvQAH)20150114_185607 (https://flic.kr/p/qNvQAH) by duncancmartin (https://www.flickr.com/people/90461577@N00/), on Flickr
So that's got me all the head-tubes etc I need. Now all I need is a rear suspension 20" MTB and I can get cracking. Will consider Ebay for that if I can get one local enough and cheap enough.
My garage is looking like someone's bike junkyard at the moment - as well as that pile there's this little lot of family bikes! Though the Carerra one is the bike polo bike that's going to be part exchanged for bits...
https://farm8.staticflickr.com/7575/16093189028_b16146562f_z.jpg (https://flic.kr/p/qw6Nqm)20150114_185614 (https://flic.kr/p/qw6Nqm) by duncancmartin (https://www.flickr.com/people/90461577@N00/), on Flickr

I think it needs tidying!
Cheers
Duncan

darnthedog
01-14-2015, 02:32 PM
Alternatively You could build your own. It has been done before it can be done again. And it would be made to fit.

Use the Warrior Template for rear wheel with the Timberwolf suspension. Use Shaft collars and brass bushing to create the pivot. If I can find the forum page I will post link here.

Just an idea.

Found the page: http://forum.atomiczombie.com/showthread.php/7119-First-Bike-Build?p=67068&highlight=#post67068

Post 21 has the pictures. Hope that helps.

DuncanM23
01-14-2015, 04:35 PM
I might end up doing that, but there are quite a few suitable bikes on eBay - they are all a fair distance away and those that would post cost 20 quid just for postage (which is 50% of the cost of the bike)!
Thing is, if you build the triangle, you still need to buy the suspension bushes, the spring/damper unit and the back wheel. The end result might be better, but I doubt it would be easier or cheaper.
Cheers
Duncan

darnthedog
01-14-2015, 08:17 PM
With the pile of bike you ave you don't have the making of a wheel yet? Move hub from Adult bike to 20 inch rim? :thinking:

Be warned: Many of the small bike bike shocks I got from Department store bikes where worn out or too small for me. But got lucky with a used cycle from a Goodwill with a decent shock on it rate over 600kg. So you may still have to buy those components. Also many for the Department store bike now use plastic bushings. They bust and your out of a pivot assembly. And they seem to be propitiatory. So you can't get replacement parts.
I ran into this with my son's bike recently. He bought it last year and the pivot broke. He had to get a new bike.

Thus the idea to build your own. 4 X 20mm collars, 2X 20mm bushings. A small piece of 20mm steel and you in business. But you maybe correct in the cost of things. Shaft collars seem a bit pricy in UK Ebay. Did find this new shock:http://www.ebay.co.uk/itm/REAR-SHOCK-MOUNTAIN-BIKE-SUSPENSION-UNIT-750LBS-IN-150MM-NEW-bargain/251682792933?_trksid=p2047675.c100005.m1851&_trkparms=aid%3D222007%26algo%3DSIC.MBE%26ao%3D1%2 6asc%3D27677%26meid%3D6b48783f693f48219bae8548022f 0b95%26pid%3D100005%26rk%3D3%26rkt%3D6%26sd%3D2011 29584666&rt=nc to be pretty reasonable though.

I leave it up to you.

DuncanM23
01-15-2015, 03:32 AM
You're right, it might be possible - I need to count the spokes on those wheels to see what I've got. I figured that if I build up a back wheel for this bike I'll get a secondhand MTB hub to build up though. It will have much better bearings than the one on the adult bike, it's easier to get a good range of gears with a cassette, and it should be sturdier. I can probably get one from the bike shop for a tenner.
I hadn't thought about how bad the bushings were likely to be, but given the price of the whole bikes when new, and the quality of some of the visible bits, it makes sense! If they are that bad, then they would need to be replaced anyway - maybe I should just build my own frame completely. That shock looks decent, and very reasonably priced, so the benefits of the rear triangle are reducing all the time! :)

I need to do an inventory of what I've got and what I need and work out what my alternatives are (I should also probably finish the BMX in pieces on my garage floor! :) ).
Cheers
Duncan

DuncanM23
01-15-2015, 04:48 PM
The adult bike is now fully functional, so can go to a new home (via the bike workshop for a going over and a new rear tyre).
The BMX is now stripped, except for the crankset (I couldn't get the pedals off!) and the headset races. How do you press the headset races out of the head tubes (or do you just leave them in there)? I tried bashing with a hammer and a drift, but I don't want to break them. I counted spokes, the BMX wheels are 36 spoke, and the kid bike wheels are 28 (but seem to be steel rather than alloy, so are not what I'm looking for!). Sadly the BMX axles are little skinny ones. So I can re-use the BMX rims, either both on the front or one on the rear, but I can't re-use either wheel in its entirety.
I've got stuff on this week preparing for an event my wife is running Tuesday, so aside from maybe stripping the kidbike tomorrow I won't be able to do much toward the build. But then I'll have brownie points and time to do bike things. :)
Cheers
Duncan

Twinkle
01-15-2015, 05:02 PM
How do you press the headset races out of the head tubes (or do you just leave them in there)? I tried bashing with a hammer and a drift, but I don't want to break them. :)
Cheers
Duncan

Hi Duncan
I tend to use a piece of approx 19 mm tubing about 300mm long and that works , hit one side ,then the other and keep going they are tight!!!!!!!!

14mm spindled wheels do come along and I even found a pair of 48 spoke 14mm axled BMX wheels with a front disc brake at the tip £5 later they were mine together with most of the bmx :jester: they were attached to . £5 after that they had a Disc converter on the rear wheel so at £10 for a pair of front disc wheels they were a winner !!!

regards emma

DuncanM23
01-15-2015, 05:48 PM
There are loads of new 14mm spindle wheels on eBay for about 25 quid a pop (plus post). that would probably be cheaper than MTB wheels, but would need more ingenuity to sort out disks on the one side. I'll just keep my eyes open...
Cheers
Duncan

FrankCrank
01-15-2015, 11:59 PM
.....these are the ones I have on my mk2 trike. They have wide flanges, so I think they would be suitable to convert to disk :-

http://www.woollyhatshop.com/20-Wheels/Front/BMX-20-48-Spoke-Freestyle-Heavy-Duty-Silver-Front-Wheel-14mm-Axle/prod_345.html

They are very well made in my opinion, and price is difficult to beat :stooge_curly:........

DuncanM23
01-16-2015, 03:50 AM
That's an interesting shop. They have a similar back wheel for the same price:
http://www.woollyhatshop.com/20-Wheels/Rear/BMX-20-48-Spoke-Freestyle-Heavy-Duty-Black-Rim-Rear-Wheel-14mm-Axle/prod_3426.html
That would mean that I could get a disk on the right hand side without an issue, but I would need to perform Twinkle's trick with the MTB hub for the LHS (or find some way of ensuring the screw-on disk adapter just doesn't unscrew). I've got a spare BMX hub - I might buy an adapter and experiment. :)

I don't have any suitable tube in the garage for bashing out headset races. I will see if I can borrow the tool from the bike shop I give that bike to on the weekend - gotta be worth asking. ;)

Cheers
Duncan

Neil B
01-16-2015, 04:16 AM
To bash out head set cups as you say, you can use a drift or a screw driver, tap one side then the other and rock the cup out.

Neil

MrIdaho
01-16-2015, 08:14 AM
I wish I had a lath and a better knowledge of usage. Then I would make some 48H 20mm (3/4") axle hubs.
All I did was make some using some steel DOM tubing and some washers. Kinda heavy but work.
Will locate link to what I did or just search for DIY hubs

DuncanM23
01-16-2015, 09:29 AM
I wish I had a lath and a better knowledge of usage. Then I would make some 48H 20mm (3/4") axle hubs.
All I did was make some using some steel DOM tubing and some washers. Kinda heavy but work.
Will locate link to what I did or just search for DIY hubs

Hi
I read your thread with great admiration. It seems to epitomise the Zombie spirit of making anything you want, with comparatively few tools!
Sadly, if I try to make all the components for this bike, it will take 4 times as long to build! Ultimately, if I can't find secondhand/repurposable wheels by the time I need wheels, I'm going to buy the components and build them, or just buy complete wheels! I want to ride it this year!
Cheers
Duncan

Twinkle
01-16-2015, 03:08 PM
That would mean that I could get a disk on the right hand side without an issue, but I would need to perform Twinkle's trick with the MTB hub for the LHS (or find some way of ensuring the screw-on disk adapter just doesn't unscrew). I've got a spare BMX hub - I might buy an adapter and experiment. :)

Duncan

Twinkles other tricks for the nearside ( USA -LH ) wheel include using a pair of large flange 14mm rear wheels and drill through 3 of the adapters holes and the hub flange and bolt the rotor through the adapter and the back of the hub using 5mm HT allen head bolts lock washers and nyloc nuts (my transportable style )...:evilgrin:.....:)
This is possibly the cheapest option try ryanobe on ebay for them and left and right hand brake calipers or order direct from china about 4 week lead time .

regards emma

regards emma

DuncanM23
01-16-2015, 04:13 PM
I think I saw that thread too - sounds like a interesting hack. Could you do that with a front wheel as well?
I spent an hour in the garage this evening and stripped the other kidbike. That was a lot easier than the BMX. I've totally failed to get the left hand pedal off the BMX crank! Standing on stuff, bashing spanners with hammers, clamping it in the vice, all failed. Then I had a brainwave and dismantled the pedal. Fortunately it was knackered, because when I picked up the body, all the ball bearings fell all over the floor! If it wasn't broken before, it is now... :) I think I can now remove the crank from the bottom bracket and then get even more medieval on the pedal spindle (I'll probably blast it with the torch, and if that doesn't work chop it off and grind the flats so I can get my breaker bar on it. If a 3ft breaker bar won't sort it, I'm not sure what will (other than drilling, and it's pretty well hardened steel))...
The headsets (BMX and kidbike) were a bit rough because they were let outside for a while and generally neglected - is it worth fitting new headsets, or are they irrelevant to the riding experience?
Cheers
Duncan

Twinkle
01-16-2015, 04:39 PM
You can do it with a front wheel BUT you would have to modify the screwed adapter :- ream out the centre , it is on our to do list to supply an adapter later this year if and when we actually retire !!!!!!!!!!!!!!!
Personally I would go for 2 rear 14mm bmx wheels if I was going to look for a low cost new alternative to over £150 worth of wheels

ALSO

Left hand pedal is left hand thread !!!!!!!!!

Low cost headseat are worth getting you will find the postage is as much as the headset buy 3 and you have a spare one for the USS mount , unless you use my hub method for the USS mount ( my mkll and the 20/20 e-trikes )

regards emma

DuncanM23
01-16-2015, 05:11 PM
I know the pedals are different threads. I can never remember which way around they are, but I have several kicking around my garage now, so I just check! :)
I think I've found a (cheap) 20" rear suspension bike local to me. :) It looks quite new in the only picture I've seen, so £15 doesn't seem too pricey. Hopefully they will get back to my email and I can sort it out. :)
I'll get new headsets at my preferred bike shop (I can get a discount and there's no postage to pay). I'm hoping to be able to pick up pretty much all the other bike bits (aside from a BB, which I will also buy new) secondhand. The bike shop is this one - http://bsbcoop.org/ they have a large stock of secondhand bits that they will let people pick through.
I'm not sure about wheels. The simplest but most expensive thing would be to buy the 32 hole stuff I linked to on the warrior thread. The next simplest and cheapest is the BMX wheel solution. I've got 2 BMX wheels in the garage though - if I can find some cheap 36 hole hubs then I can go even cheaper and more Zombie! :)
Cheers
Duncan

DuncanM23
01-18-2015, 12:15 PM
I got the headset races out using a screwdriver and a very large hammer. :)
I'm kinda stuck trying to get the pedal spindle out of the BMX crank - steel crank and steel hardened pedal is not a good combination when you want to keep the crank! Might just cut it up and if I can't get it out, then write off the crank.

I scored a new looking rear suspension 20" wheel kids bike. It seems to be in decent condition, and the brakes and gears work, but the shock is incredibly soft. Is it worth getting a decent rear suspension unit secondhand (eg http://www.ebay.co.uk/itm/201262258742?_trksid=p2055119.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT ) or does the quality/stiffness of the shock not matter too much?
The front fork is a suspension one, so I don't know if I can weld to the bottom of it - I guess I'll see when I take it apart. I'll post some pictures when I get a chance to take some.

Twinkle
01-18-2015, 01:22 PM
You will need a decent damper with a spring tension minimum of 650 lbs and 5" long ( 125mm " the 4" /100 mm ones are usually low rated as they are rated for a child ..

regards emma

DuncanM23
01-18-2015, 01:53 PM
Thought so. Thanks for confirming though. I'll keep an eye out on eBay and see what I can come up with. I assume a decent shock for an adult MTB will be OK, given the way the weight is distributed on a trike vs a bike...
Here's the pictures I promised:
The bike itself (6 gears using gripshift, V brakes - clearly I'll replace the rear mech, but I might see if I can get away with this wheel)
https://farm8.staticflickr.com/7473/16310893815_43542cf1bd_z.jpg (https://flic.kr/p/qRkAta)20150118_183431 (https://flic.kr/p/qRkAta) by duncancmartin (https://www.flickr.com/people/90461577@N00/), on Flickr
The rear triangle
https://farm8.staticflickr.com/7504/15688484474_578dea44d8_z.jpg (https://flic.kr/p/pUkzRC)20150118_183440 (https://flic.kr/p/pUkzRC) by duncancmartin (https://www.flickr.com/people/90461577@N00/), on Flickr
Busy for 2 days, and then going to make a trip to the steel stockist for square tube (and any 12mm thick offcuts I can scrounge!).
I should probably start posting in my StreetFox thread rather than here now.
Cheers
Duncan

Ticktock
01-19-2015, 11:41 AM
For the record--as no one else gave an answer--its the opposite to what normal mechanics suggests it has to be!
Left peddle is left hand thread, right peddle is right hand thread.
Its worthwhile getting your hands on a proper set of taps for these threads, as its a fair bet that later on , riding a recumbent , that you will want to shorten the cranks, and this is easy with alloy cranks IF you have the correct taps.
They also come in very usefull to repair damaged/corroded threads. (reminds me to get my taps back from Mr Lee in China next visit!!)
Steve G

bambuko
01-19-2015, 12:02 PM
for three piece axle (but not for one piece or BMX):
9/16" 20tpi

for BMX:
1/2" 20tpi

ps you "peddle" your wares, you "pedal" your bicycle, Steve :innocent: