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Roccorob
09-01-2011, 01:58 AM
Hi there, just started "bike hacking", i made 2 so far, they're not the best and certainly not the prettiest but i love it. I'll upload some pics as soon as poss....

Roccorob
09-01-2011, 02:17 AM
If these pics work then these are my chops so far;
http://i311.photobucket.com/albums/kk445/Roccorob/DSC_0805-1.jpg
and my second, forgive the welding, I'm learning, it's a steep curve
http://i311.photobucket.com/albums/kk445/Roccorob/2011-08-29121221.jpg
The second i made for my boss as he wanted one when he saw the first

Gerald_G
09-01-2011, 02:49 AM
Welcome to AZ.

trikeman
09-01-2011, 06:56 AM
Cool bikes. Welcome.

TheJoker
09-01-2011, 08:44 AM
Hello from north Oxfordshire! :) Welcome!

KoolKat
09-01-2011, 09:13 AM
Welcome to the AZ family.

stormbird
09-02-2011, 01:10 AM
Hi there

I think your welding is fine as long as it has not fallen apart ?

However I think you need to improve your grinding skills :rolleyes4::rolleyes4::rolleyes4:

Keep the bikes coming

Paul

In t'midlands

Roccorob
09-03-2011, 03:08 AM
Haha, yes it's not fallen apart yet but thats what i need to address this weekend, once i grind back the welds I'll find out how rubbish my welding is. :-S

Roccorob
09-04-2011, 06:21 AM
Taken a few more pics as I've changed a few bits I've changed the forks and changed the main chain wheel since these photos and will take some more later on
http://i311.photobucket.com/albums/kk445/Roccorob/2011-09-03191720.jpg
http://i311.photobucket.com/albums/kk445/Roccorob/2011-09-03191752.jpg
Thanks for the warm welcome too.

aikibod
09-09-2011, 02:59 AM
Hello from North Essex (Kelvedon)

Like many others here, jumping straight into the deep end - starting to pull together materials for the Marauder. No welding experience so this will be a suck and see project!!

Lowriding fun here I come .... (hopefully ... lol)

Cheers all

Roccorob
09-09-2011, 03:05 AM
Cool I'm from Colchester, i had no welding experience too as you can probably see. Haha. I'm trying to find time at the mo to build a python lowracer. Just collecting bits of other bikes.

aikibod
09-09-2011, 03:09 AM
Sounds like a build up to a lowrider race !!!! ...... as long as our welds hold up !!!

Roccorob
09-09-2011, 03:14 AM
Haha, excellent my choppers seem to be in one piece just, i ground the welds bacnd realised just how bad they were. Now I've got that bit of extra experience I'm gettin better.

Roccorob
09-09-2011, 03:57 AM
By the way, let me know if you need any bits, I've got loads floating around in my garage.

aikibod
09-09-2011, 09:30 AM
You're a gent ! thank you !

I've my son's old 20" bike that'll come in use for the front and I'm keeping my eyes peeled for a 26" MTB.

ISG (chelmsford) for the mild steel tubing - know anyone else locally?

Pulleys - I'm watching some on ebay.

MIG Welder - I'm watching some on ebay.

Wifes permission - check ! 11 year old son to help - check ! Garage big enough - after moving the other bikes ... check !

Now watching YouTube a lot to educate myself on welding !!!! Gulppppp!

Roccorob
09-09-2011, 09:44 AM
Excellent, i'm going a bit more "heath robinson" than you, I've got an arc welder, cost me 20 quid, my son is 2 and a half and my garagehas 3/4 of a car and loads of bike bits so weld in the garden. Your finished article will more than likely be a lot more astheticly pleasing than mine.
I have a spare rear derailler or however you spell it if it would be of any use, i bought a couple of 24" mtbs
as for steel I'm recycling bike tubing plus got some old gas pipe from my nans garden (it wasn't in use) lol.

aikibod
09-09-2011, 01:02 PM
I'm looking to buy a fairly good 26" MTB with Shimano throughout such that (a) I can use that on the bike, and (b) I can use the odds and sods I have lying around from my cyclocross.

As an aside - for the lowriders / low racers, can anyone suggest what sort of gearing should you be looking at? I'm assuming that a std 39/52 upfront would suffice, with a tight cassette on the rear - say a 12/25? Or do you need a wider cassette due to low speed and balance issues when 'launching'?

Cheers all.

stormbird
09-10-2011, 02:42 AM
MIG Welder - I'm watching some on ebay.


if you have no knowledge of Welders and Welding visit this forum , loads of unbiased advice on purchase and use:- http://www.mig-welding.co.uk/forum/index.php

I wish I had found them before I shelled out 300 + on a cr*p SIP welder [ Now have a lovely TIG set ]

regards Paul

Roccorob
09-10-2011, 05:53 PM
Did a couple of modifications to the chopper and added a sissy bar fter this photohttp://i311.photobucket.com/albums/kk445/Roccorob/2011-09-09185810.jpg
Then made a good start on this
http://i311.photobucket.com/albums/kk445/Roccorob/2011-09-10153528.jpg
http://i311.photobucket.com/albums/kk445/Roccorob/2011-09-10160150.jpg
http://i311.photobucket.com/albums/kk445/Roccorob/2011-09-10161434.jpg
Done some more now too but too dark for photos now, post more up tomorrow.

Roccorob
09-10-2011, 05:59 PM
Oh, just remembered this one too

http://i311.photobucket.com/albums/kk445/Roccorob/2011-09-10215437.jpg

Roccorob
09-11-2011, 05:59 PM
Tested this, it now needs a lot of adjustments especially seating and crank distance. When any of you guys first rode your bents did you fall off A LOT, or is it my geometry?
http://i311.photobucket.com/albums/kk445/Roccorob/2011-09-11213704.jpg
http://i311.photobucket.com/albums/kk445/Roccorob/2011-09-11213737.jpg
By the way the skateboard seat is temporary, just for testing.

Odd Man Out
09-11-2011, 06:51 PM
I notice a couple things
Seems like your cranks are WAY above the level of your posterier -- but you are not very reclined -- I see you sitting in it as a kind of "V" situation. Forgive my honesty but it doesn't seem too ergonomic.
Also it seems like all bikes I have seen like your has the cranks forward of the wheel and not at the very top of it -- this may contribute to the handling characteristics.
I may be wrong and probably most likely am... just my zwei pfennigs.


Very interesting design

Roccorob
09-12-2011, 01:02 AM
Thats exactly what my wife said and yes i was going to try to move them forward and lay back more by cutting back the centre post maybe even replacing it as i have adjusted the lower front forks as i was getiing a lot of wheel flop when most bents look almost self centring. And i now am too long for the space i allowed. Thank you i think needed to hear it from more than one source.

Roccorob
09-12-2011, 05:56 PM
Made some adjustments to crank height, angle and distance, seat angle and tried it, it now self centres, my legs are fully straight at the furthest point but i still fall off, it's like learning to ride a bike again. Any tips greatly recieved.
http://i311.photobucket.com/albums/kk445/Roccorob/2011-09-12220854.jpg

jammin
06-05-2012, 05:59 PM
Nice to see some local Essex boys on here. I'm in Grays and just starting my second build Roffrod Lowrider after a few years out from building the roff chop.

Roccorob
06-05-2012, 06:02 PM
Nice one, I've changed tact a fair bit amd been building choppers since, much more rewarding and rideable too!!!

TexasTuff
06-05-2012, 07:23 PM
Roccorob, I've been looking back at your build on the python. At one time I also had an interest in Python bikes and did a little study on them before I started a build. If you've a minute, you may like to read of my take on Python bikes. (http://texasrecumbents.wordpress.com/2011/12/10/whoa-whoa-whoooooooooa/) I decided I would have better luck with more traditional forms of recumbents.

Kurb_Krawla
07-02-2012, 05:05 PM
Tested this, it now needs a lot of adjustments especially seating and crank distance. When any of you guys first rode your bents did you fall off A LOT, or is it my geometry?
http://i311.photobucket.com/albums/kk445/Roccorob/2011-09-11213704.jpg
http://i311.photobucket.com/albums/kk445/Roccorob/2011-09-11213737.jpg
By the way the skateboard seat is temporary, just for testing.

Hi there, I see you've built a Python Lowracer. Looks nice and low and I like the rear suspension set up. I think you're crank is too high, but not sure of your leg length? Pythons take a long time to master!!! Best wishes.

Kurb_Krawla
07-02-2012, 05:07 PM
Check out: www.python-lowracer.de