A2J 'R' prototype 0004

Who are you (no off-topic talk please)

Moderator: Moderator Team

User avatar
andy2
in the industry
Posts: 713
Joined: Sun Dec 16, 2007 9:33 pm
Location: Luxembourg / Sweden

by andy2

This is the 4th bike we put together from our 'proof of concept' run.
Currently residing in my place but soon to be shipped for further abuse in foreign lands by more capable legs!

Weight with pedals and bog standard group, stainless screws (it's a tester!) etc is 5.5kg on the dot.

Image

Image

Image
rolobikes

by Weenie


User avatar
Berk
Carbon Cowboy
Posts: 1156
Joined: Sat Sep 04, 2010 7:20 pm
Location: Slovenia

by Berk

Beautiful!!!
Berk PROTO-TYPE Composites - Handmade In Slovenia
Berk Composites
http://www.berk-composites.com/
info(a)berk-composites.com

User avatar
elviento
Posts: 1235
Joined: Thu Aug 25, 2005 7:09 pm
Location: In the industry
Contact:

by elviento

Berk wrote:Beautiful!!!


Indeed. Really impressive weight too. What carbon do you use? How does it compare to, say Toray's higher end fibers?
Fast falcons: http://www.youtube.com/watch?v=j3mTPEuFcWk" onclick="window.open(this.href);return false;
www.falcobike.com
Facebook: falcobikeglobal

User avatar
prendrefeu
Posts: 8611
Joined: Wed Oct 31, 2007 10:32 pm
Location: Los Feliz, Los Angeles, California
Contact:

by prendrefeu

Absolutely magnificent.... Jaw-droppingly good looking, even.
Exp001 || Other projects in the works.

gumgardner
Posts: 3553
Joined: Sat Jan 06, 2007 9:47 pm
Location: Pittsburgh

by gumgardner

Another home run

ross
Posts: 394
Joined: Mon Mar 14, 2011 10:59 am
Location: Oxfordshire UK

by ross

Serious case of want

User avatar
miltmaster3
Posts: 541
Joined: Sun Nov 30, 2008 7:29 pm
Location: patra greece

by miltmaster3

one of the best
πατα τραβα ρε

KWalker
Posts: 5874
Joined: Mon Dec 28, 2009 8:30 pm
Location: Bay Area

by KWalker

I like the build minus the front end- that headtube/top tube is super ugly.
Don't take me too seriously. The only person that doesn't hate Froome.
Gramz
Failed Custom Bike

whatbrakes
Posts: 16
Joined: Wed Sep 28, 2011 3:21 pm

by whatbrakes

This is just like one of those cheap chinease frames from ebay! :oops: :twisted:

Seriously it does look the dogs. :thumbup:

User avatar
majklnajt
Posts: 3708
Joined: Thu Apr 10, 2008 6:40 pm
Location: Lenart, Slovenia EUROPE

by majklnajt

Looks mean!!!! 8)


I just dont like the non setback seatpost and the shape of the bars. Otherwise PERFECT!!!!

Epic-o
Posts: 621
Joined: Tue Nov 20, 2007 7:18 pm

by Epic-o

I love it. Two questions:

1- Why did you choose metal dropouts?
2- I read somewhere that you sent one of your frames to Zedler for testing. Have you got already the results?

locktopus
Posts: 176
Joined: Mon Oct 03, 2011 3:47 pm

by locktopus

Looking seriously mean!

That said, the top tube/head tube junction and shape of the head tube doesn't seem to flow with the sleek, simple rear end.

User avatar
andy2
in the industry
Posts: 713
Joined: Sun Dec 16, 2007 9:33 pm
Location: Luxembourg / Sweden

by andy2

We are currently testing different layups and composite systems. The bike in the pic has a fibre resin system that we specced. The prepreg was made at Advanced Composites in the UK; they might have used Toray made fibers. (We don't use off the shelf prepreg products). The Zedler tests are an ongoing project. We have created virtual Zedler test benches that we do our FEA tests in. This way we can do virtual layups and geo tests and then verify through actual tests at Zedler. The runs we've had so far where to get the model to within a percent or two from the actual test data. We also do test tubes in different carbon/resin systems and layups that are tested at THM. I will get back with some more raw tech data as soon as Jon chimes in.
Re the metal droputs, we did not choose but the guy that was supposed to make the reae traingle portion of the monocoque with the chainstay forming from solid to hollow in one piece was busy making A-arms for some F1 teams so we had to machine them from billet 7075 alu. Carbon hanger was made by Matthias Hellöre, seatclamp and integral fd holder bespoke by MCFK.
Oh, and that headtube toptube junction is a function of the aero testing with the structural and fit req in the background with a nod to Andy Walser as well.. It's unusual but functional, the frame tests really well in the aero dept.
& Thanks for ALL the comments!
Last edited by andy2 on Thu Nov 03, 2011 12:03 am, edited 4 times in total.
rolobikes

ArferBar
Posts: 64
Joined: Mon Oct 03, 2011 5:32 pm

by ArferBar

OH MY GOD

by Weenie


User avatar
a67b
Posts: 48
Joined: Sun Dec 07, 2008 7:51 pm

by a67b

I love this bike!! :thumbup:

Post Reply
  • Similar Topics
    Replies
    Views
    Last post