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DF-350 Peoples Choice Video
This video goes over some of the key elements that make the DF-350 what it is.
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Video info
- Date Posted
- Apr 8, 2012 at 6:50Apr 8, 2012
- Category
- Edge Factor: R2 - Reality Redesigned
- Location
-
Ottawa, Ontario, Canada
34 Comments
- + 7
jcc1015
(Apr 8, 2012 at 19:55)
Definitely one of the better explanations of everything I have heard... Watching that video would have let me understand the effects of suspension so much easier than I learned.....
Mega sick bike! And when it does hit production the wallet will be the only speedbump to owning one!
- + 2
I really like where you're going with this. I don't mean to sound cheesy, but it's thanks to people like you that progress can be made. Best of luck for the contest, and hopefully we'll see a DF-350 shredding sooner rather than later 
Speaking of which, how did you come up with that name?
Speaking of which, how did you come up with that name?- + 2
Thanks a lot, it people like you that keep me motivated through the rough parts of designing
And the name is my turn to be cheesy. I just wanted to find a cool sounding name that at least had something to do with the bike. And 6061 T6 aluminum is heat treated for 8 hours at 350 degrees ferinheit do that led me to DF-350. Just put the DF in the front cause it sounded better. Likely just a project and prototype name though
And the name is my turn to be cheesy. I just wanted to find a cool sounding name that at least had something to do with the bike. And 6061 T6 aluminum is heat treated for 8 hours at 350 degrees ferinheit do that led me to DF-350. Just put the DF in the front cause it sounded better. Likely just a project and prototype name though
- + 2
I think that you have by far the best design i have seen out there and you definitely have my vote! Its cool to that ur from Ottawa as I live 5 mins from camp fortune 
sadly I only do XC and not DH as i would have definitely loved to ride a prototype 
sadly I only do XC and not DH as i would have definitely loved to ride a prototype - + 1
Seems really good but I'm slightly skeptical about it's performance as there seems to be no drawbacks. Sounds too good to be true. Also, any reason for the wonky top tube? I think it would look a lot cleaner without the hunchback bit. Good effort either way.
- + 1
The top tube was mostly done for ascetics and to make the top tube lower, but if I prototype it is will be a strait tube for sure. Also the main drawback would be that a rearward biased wheel path means the chain stays extend in corners and on the lips of jumps. So it will never be as snappy feeling as something like a demo 8, but the demo 8 has only about 5mm of rearward travel compared to my 30mm. So it is a give and take there, but I have ridden several rearward biased bikes at this point and so long as the rear triangle is kept strong and stiff, it feels pretty good. Also in this design I have the suspension ramp up a fair bit at the beginning of the travel to give it a snappier feel.
- + 1
^needs to stop drinking caffeine and geeking out on bikes.
You got my vote. I'd consider much larger hardware on the idler. I've got a jedi and I bent the 8mm bolt with in a week(I'm 165 and I do mash, but I don't have thunder thighs). I mentioned this to chris and he was dismissive of it. Simply using a 12-14mm hollow bolt would have added little to now weight, but mitigated the problem. It's single shear on the jedi, I wouldn't necessarily be worried about the idler bolt on yours, but the bolts holding the idler assembly on the frame.
The top tube looks a bit awkward.
If you could modify this to use an alfine, that would be amazing. Something like a HD spring loaded tensioner on the non drive side arm + a belt drive. With a pulley next to the upper pivot you'd have minimal growth. It would need a custom hub, but you could make a very light fixed 142mm hub with super wide flange spacing and a disc mount on the current drive side.
Hell, you could even have the front made from CF and have the lower box portion removable. With some G10 in the bolt interfaces, and 6-8 well placed bolts it would be solid. Make the frame convertable between standard and gear box...now I'm just dreaming.
CF won't be out of the question for too long, Lamborghini and Callaway patented a technology/process to essentially injection mold it called "Forged Composites".
You got my vote. I'd consider much larger hardware on the idler. I've got a jedi and I bent the 8mm bolt with in a week(I'm 165 and I do mash, but I don't have thunder thighs). I mentioned this to chris and he was dismissive of it. Simply using a 12-14mm hollow bolt would have added little to now weight, but mitigated the problem. It's single shear on the jedi, I wouldn't necessarily be worried about the idler bolt on yours, but the bolts holding the idler assembly on the frame.
The top tube looks a bit awkward.
If you could modify this to use an alfine, that would be amazing. Something like a HD spring loaded tensioner on the non drive side arm + a belt drive. With a pulley next to the upper pivot you'd have minimal growth. It would need a custom hub, but you could make a very light fixed 142mm hub with super wide flange spacing and a disc mount on the current drive side.
Hell, you could even have the front made from CF and have the lower box portion removable. With some G10 in the bolt interfaces, and 6-8 well placed bolts it would be solid. Make the frame convertable between standard and gear box...now I'm just dreaming.
CF won't be out of the question for too long, Lamborghini and Callaway patented a technology/process to essentially injection mold it called "Forged Composites".
- + 2
Very cool about the "Forged Composites" and thanks for the vote
I will definitely look into the sizing of the bolts for the idler pulley, thanks for the info on that, and as for making it gear box. It was actually my plan to do that, but between time restraints and fear of receiving flack for using an affine hub just after Zerode did, I left it out for the contest.
Also I have to look more at belt drives, but for now if it were a gearbox bike, I would likely run a chain. Can be convenient to stick a bit with convention and to my best knowlage there are no belts out yet as narrow as chains, so it could help for clearance.
Thanks for the input.
Dan
I will definitely look into the sizing of the bolts for the idler pulley, thanks for the info on that, and as for making it gear box. It was actually my plan to do that, but between time restraints and fear of receiving flack for using an affine hub just after Zerode did, I left it out for the contest.
Also I have to look more at belt drives, but for now if it were a gearbox bike, I would likely run a chain. Can be convenient to stick a bit with convention and to my best knowlage there are no belts out yet as narrow as chains, so it could help for clearance.
Thanks for the input.
Dan
- + 1
Such a BOSS! i love this frame!!! Are you thinking about putting this into production? Because i would buy one if it is in a good price range! The adjustability is endless! Completely BOSS!!!
- + 1
Thanks man. No production plans yet since I still have a year of schooling left, but I may try to prototype it for 2013.
- + 1
Wow you know your stuff! Fantastic job! I hope you win.
Only thing missing is some sexy renders of the complete bike to drool over,
Only thing missing is some sexy renders of the complete bike to drool over,
- + 1
The real question is... What bike company will you work with and when is it gonna come out to buy? Awesome design and explanation!
- + 1
is some of the filming of the riding done at camp fortune? it looked familiar and camp fortune isnt that far from ottawa