Frame design for 2nd year project at uni.
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Frame design for 2nd year project at uni.
28 Comments
  • 3 0
 It is awesome,
A couple of years ago, I have done something similar, but your project is better a hundreds times.
www.pinkbike.com/photo/1163751
  • 1 0
 Glad you like it. Im actually quite tempted to sell my Appalache frame to fund building this for real, Though that would mean having no bike all summer, which is something i probably couldnt cope with. Weve had a lot of interest in the frame already, so we might just be able to gather some money between a group of us to get a real prototype built for some proper testing. We have all the test rigs at uni aswell so we could even simulate a couple of years riding in a few days on that, but again were talking major money if we start that sort of thing.
  • 1 0
 build it and sell me one dude, looks a bit like a katipo bike (guy who makes thems on pinkbike, check out his bikes).

is what i want to do with a frame, high pivot, low shock, steel. perfect job mate!!

have you just been using cad programs for it, or have you run it through linkgae as well, that program makes life soo much easier.

but seriously, make it and i will buy one, who needs to spend a student loan on food!
  • 1 0
 The linkage was designed on Linkage, great program that. Don think it will be for sale for a while. We plan to build a prototype and do a bit of data logging and other testing first, make a few refinements and then get a few out there. Also being students this could take a while to do due to lack of money. So we may design and build a few hardtails first to get us into the swing of things plus there a hell of a lot cheaper to produce for now.
  • 1 0
 hardtails are much cheaper. being a student too im not bothered if it takes a while to make, cos then i'll have enought to afford one
  • 1 0
 jesus graham i'd heard things but wow! i smell a ridiculously rearward axle path too, judging by the high instant centres and need for an idler- most of my frame doodles looks similar, sort of a true four bar sunn radical, if you get me
  • 1 0
 see some LAHAR in that frame Smile

One idea though man, since the Lahar proved that the low links do receive impacts over time, coming up with a small ribbed stainless or aluminum bash guard to basically cover the front of the link, and wrap around the base.

Heck you could even do it with lexan to save weight. I'm super interested in rearward travel bikes and this is just making me dig it all the more. Cheers mate.
  • 2 0
 Ha how do you think I feel with an Ancillotti, link and shock scoops lower than the bash guard
  • 1 0
 Run a bigger front gear. Issue solved. =]


"• Each model of frame is equipped with its own adjustable shock absorbers, totally produced from billet in 7075, totally designed and built by Ancillotti,(The sole producer on the market that produces not only the frame but also its personal shock absorber) purposely designed, built and sized for the particular type of frame and of course in perfect harmony with the PULL SHOCK system "

Sole producer? Definitely not. I think this company needs to do a bit of research as Risse has been doing this since the very early 2k's with their Lassen DH bike. On top of that, Risse also makes their own forks. So basically they are still 1 upping Ancillotti in the game of making all their own stuff suspension wise (sure Risse won't compare performance wise... but that's not the ordeal with this claim of Ancillotti) Maybe someone should message Ancillotti and tell them to change their description of their frame.

Also, Foes is pretty much 1:1 with curnett shocks, thus making them not the sole producer.

I don't think too highly of a company saying they are the only one to do something... when other companies have been doing it for years longer, and still do it today.
  • 2 0
 You cant, its an integrated bash/chain device combo.

I think what they mean by sole producer is there is no other shock out there like it internally, when you take it apart and compare it to most others it really is different. I know someone who rides a pre2000 (think its 98 ) lotti proto with the 'pull shock' and its still running mint, they really are amazing.
  • 1 0
 Heck, all the Pull Shock Yeti and Schwinn and GT DH bikes still ride like champs also! Pull shocks are awsome!
  • 1 0
 You where hassling the Zerode for being like the Lahar. Check my Katipo, then check your frame, see anything familiar?[URL=http://imageshack.us/photo/my-images/838/img0924w.jpg/][IMG]http://img838.imageshack.us/img838/5351/img0924w.jpg[/IMG][/URL]
Nothing wrong with it in my opinion. But people in glass houses.
[URL=http://imageshack.us/photo/my-images/19/img0931ii.jpg/][IMG]http://img19.imageshack.us/img19/2871/img0931ii.jpg[/IMG][/URL]
  • 1 0
 When did I hassle the zerode for being a lahar exactly? I know there vastly different.
I am aware this is similar to the katipo frame, funnily enough both frames were based on the lahar.
My mate had a lahar and I had an Appalache. When designing a linkage driven high single pivot frame this was the obvious arrangement to use. What's your actual problem?
  • 1 0
 ha ha, sorry I thought this was rffrs page. Sorry, all good.
  • 1 0
 Ha, no worries. Reading his comments on the Zerode blog I can see where your coming from with your previous comment.
  • 1 0
 I think he was talking to me. What does this matter? This isn't a gearbox type design like the Zerode or Lahar.

I have over 2 dozen companies that have used the high pivot frame in my fav list. Lahar to my information is the ONLY other company to use a geared hub in their frame design. Inform me if I'm not correct.

And being you saw my page NoSkidMarks you would have seen my POD.

Sunn, Canfield and a slew of other top makers, and even more underground makers have done this same design of high pivot (many like the Lahar, but many different linkage wise). I was solely talking about the geared hub ordeal. Basically with Lahar never going to be around again as Aaron has vanished for reasons I won't say, Zerode took off with the idea (and what a great one it is) and hopefully will truly do something with it. I'm a major Zerode fan in every way, because they took something so wonderful, improved upon the design by hiding the linkage, and are hopefully going to stick around. Either way. Zerode and Lahar don't compare to anything I know about to date bar none. None of the idler pulley arm high pivot frames get close, minus the Canfield... which in it's self is a sheer beast.

In the end it's about progression, and Rearward suspension has been and is the pinnacle of suspension design to date. Everyone fears designing bikes with it because of chain growth etc, but, some companies are finding ways around it (mostly with idler pulleys high up) but, even better with geared hubs in the frame. Just wait until we see micro gear boxes and no more geared hubs. I'll put my money on Zerode pioneering that tech.
  • 1 0
 You seemed to be bagging the Zerode for copying the Lahar.
So I posted a photo of my old Katipo that yourframe looks more similer to than the Zerode does the Lahar.
Oh and I mentioned in the Zerode thread I think. Nicolai, GT, BCD, and others had high pivot gearbox hub frame mounted as a virtual idler, most before Lahar I think, well BCD did. It's all trivial was my point, they possibly all evolved at the same time unaware of each other.
We're on the same page, yours just seemed scrunched up a bit in the Zerode thread.
If you put shock shuttle mounts on the top tube also(I know, ugly), and braced accordingly, you could have your frame less progressive for an air shock. I always thought a BB mounted link would be tidier, spent ages trying to get shock more vertical etc with similar design, can't recall my findings sorry. I'll sleep on it. I'm brain dead from 4 hours sleep. A split pivot doesn't negate the floater with the swingarm being the seat stay does it? What about mounting the brake on the chain stay? That'd be noisy and wreck brake components and foul suspension I guess, and the space where you'd want it narrows.
  • 2 0
 I love the design, but that bottom linkage is making me lol.
  • 1 0
 send me the step files and i'll finish it off Big Grin

www.pinkbike.com/photo/7597093
  • 1 0
 this was initially a joke but i'm serious now, please let me cad the other stuff up... it'd be good for my port-folio and good for you too.
p.s. im not saying youre not good enough, i'm saying i have the motivation/insanity to do it
  • 1 0
 I have already got all the components modelled. I just never uploaded any images. I might have a look later today.
  • 1 1
 looks awsome! just dont go and make it look rubbish like a lot of steel frames are...
  • 1 0
 Looks like a reverse single pivot to me.
  • 1 0
 lol, its the rocker off a big hit
  • 2 3
 looks weak... but hope its just the looks...
  • 4 0
 Its made of reynolds steel (similar to sanko or supertherm), so you can use thiner walled, smaller diameter tubes than you can with ali and keep massive strength. Weve done all the strength analysis on it and found no issues.
  • 1 0
 looks f*cking cool ill buy one Smile
  • 1 0
 oh well , then its awsome Smile good luck with it at your uni Wink







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