Full 8.7" compression - note clearance for seat tube:)
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Full 8.7" compression - note clearance for seat tube:)

10 Comments

  • 0 0
 sam hill would definately love your bb height, now i am not an engineer, just getting back into riding so forgive my dumb questions but, that to me looks like a refined dw link, or very similar to how one works so why would chain growth be an issue?
  • 0 0
 actually after reading the other guys posts i think i misunderstood pulleys, i beleive you guys are talking about tensioners, if thats the case i understand now,
  • 0 0
 ha ha, refined DW, I like you! - its goal isn't quite the same as the DW though, but in essence it shares the similarity of having 4 pivot points along with many many bikes out there
  • 0 0
 yeh, the new version I'm working on may not have split chainstays and the top links will be 1 piece too; there's gonna be lots of other refinements to stiffen things up. Also, the whole linkage has been lowered to so we're gonna try it without a pulley as there's less chain growth now
  • 2 0
 how are you going to minimize chain growth?now it looks that chain stretches very much? nice model though.
  • 1 0
 dude nice desigonalthough chain stay need some work to minimized chain grouth or just ad some pulleys to keep it tight
  • 0 0
 ... yeh, I think pulleys may be in order! - or just a long cage mechSmile
  • 1 0
 What is the geometry of the frame (ht angle, bb height etc)
  • 0 0
 approximately 16" effective seat-tube length, with a pretty short 45½" wheelbase and a bb height just below 14" - this model drawn will be the 6ft peoples version (small/medium), I'm gonna work on a larger geometry for bigger riders with the new version too.

h'tube angle is 65º, I kinda refined the geometry to be better suited to handling well in techy or steeper dh courses, but so it will still perform good on fast and flowy courses too
  • 0 0
 a certain symbol doesn't work on this website - its the sub-6ft peoples versionlol

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