thats the plan Front trianly will be steel, may do the swingarm in aluminium to reduce the unsprung weight of the rear end and keep it stiffer. Cogs will be sourced from commercial gear wheel manufacturers for high load applications with good wear rates, then machined down to fit this linkage. Another lucky side effect is that if the cogs do eventually wear and develop play, only half of the teeth have ever been used, so it is possible to remove them, turn them 180 degrees and reinstall them, doubling the lifespan

 WOW! You really have though this through well buddy.

 I'd do it the other way - Front triangle Alu, swingarm in steel. You can get similar weights with steel by using thinner tubing and still have the same strength - But then you'd have the shock absorbing qualities of steel in the swingarm to improve on traction and take the edge out of high speed rough sections a little. You'll loose more weight overall this way and the bike will feel a little more direct in corners imo.

 i get that, gut the rear triangle was cheap to make aout of alu, the front very difficult as i have the shock cage part that is easier to make from steel

 Thats a fair point. A CNC machine would do wonders for your design.

 yeah, but cnc doesnt give the best properties for this section i think, forging or something would be betther. so steel it is

 Fair enough. I guess with so many people accepting mediocre products these days CNC seems the obvious choice as opposed to the best. You've obviously thought this one through

 thought it through far too much, need to be revising! lol

 Pfft revision is overrated. Get oot and ride!

 Working on a name, hopefully cheaper than most dh bikes cost now :S
But i'll let you know how much it costs if i ever get to make it dude, not much will be happening till after the summer i expect.

 archnids already been used my dark cycles dude. Not a fan of the animal name things

 The Pogo Sherminator, winner right there

 done!

 i think the slink or slinky
'it will go down everything'-'(with style)'

slinkys oooze style, flawless style

or d-box?

 i like slinky! why d box?

 you know what?! i cant actually remember the d
the box is the box-section at the bottom of the downtube
and i think the downtube is the d!

haha