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Type: Posts; User: J. Barron DeJong

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  1. Replies
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    Looks like if anything the 2021 is very slightly...

    Looks like if anything the 2021 is very slightly less progressive:
    https://epicmountainbike.com/commencal-meta-am-29-2021-suspension-review-vs-2020-by-trail-pov/?c=7f2290cb4e99

    it all comes down...
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    ‘Need’ is a strong word :D. Looks like the...

    ‘Need’ is a strong word :D. Looks like the linkage on the Meta is somewhat progressive, but not hugely so:

    https://linkagedesign.blogspot.com/2019/10/commencal-meta-am29-2020.html?m=1

    Which is...
  3. Replies
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    Did you get a progressive rate spring?

    Did you get a progressive rate spring?
  4. Replies
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    This shift lever not returning properly was (is?)...

    This shift lever not returning properly was (is?) a fairly common issue with Shimano road shifters. Spraying with solvent to clear out the hardened grease and then re-lubing usually worked. I...
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    I doubt that it really makes much difference...

    I doubt that it really makes much difference here, but if you have a choice a Calcium Sulfonate grease is more resistant to washout than more common lithium grease. Shimano ‘Special Grease’ and...
  6. Sure https://m.youtube.com/watch?v=bOR38552MJA...

    Sure

    https://m.youtube.com/watch?v=bOR38552MJA

    :fm:
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    Pretty sure I saw a guy at Northstar this year...

    Pretty sure I saw a guy at Northstar this year rocking that Dior combo. Definitely remember he and his girl were wearing his and hers Bogner suits, and he was on Head GS skis, Ďcause Euro.
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    Saw Neil Young playing solo a few years ago. Heís...

    Saw Neil Young playing solo a few years ago. Heís amazing (and luckily only played a couple newer songs).
  9. Replies
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    Yeah, I wasn’t trying to say that the Trinity...

    Yeah, I wasn’t trying to say that the Trinity welds were actually great, just that it’s possible to have beautiful but weak welds also. A good looking weld is nice to have, but a strong weld is...
  10. I guess my order wasn’t technically canceled, but...

    I guess my order wasn’t technically canceled, but the shop was told that the bike wasn’t going to be produced. Still on a waitlist, but the shop was pessimistic enough that they had no interest in...
  11. Replies
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    Back when I worked in motorsports we had two...

    Back when I worked in motorsports we had two different fabricators working on the intercooler end caps for the two cars. The engines ran about 30 psi boost, so there was some decent load on theses...
  12. Hopefully a 2022 Norco Optic with XT will, since...

    Hopefully a 2022 Norco Optic with XT will, since my order for 2021 was canceled.

    When I went in to the shop to collect my deposit they said they were already working on the 2022 Norco booking and...
  13. Replies
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    True! Your brain is going to really start hurting...

    True! Your brain is going to really start hurting well before you successfully visualize how all the links are moving and where that puts the instant center at various points in the bikes travel.
    ...
  14. Replies
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    Yes, moving the main (swing arm) pivot higher or...

    Yes, moving the main (swing arm) pivot higher or more forward while keeping the other pivots in the same location would make it more progressive. However, moving the main pivot also changes the rest...
  15. Replies
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    This basically sums up my feelings. Thereís no...

    This basically sums up my feelings. Thereís no good reason to make the suspension falling rate, even if only slightly. My concern is that if they arenít getting that detail right, theyíre probably...
  16. Replies
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    The previous Stage 6 was almost completely linear...

    The previous Stage 6 was almost completely linear - Pinkbikeís analysis said 0.6% progressive. The newest version has a bit more progression, but youíre right that itís not going to be much.

    Iím...
  17. Replies
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    Sorry, I donít have a resource for you, Iím going...

    Sorry, I donít have a resource for you, Iím going off design experience. For most of todayís suspension designs with multiple links, or even linkage driven single pivots the only way to get an...
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    That Ferrum looks like it has a falling rate...

    That Ferrum looks like it has a falling rate leverage curve, which would be a - letís say, Ďinterestingí - design choice.

    Maybe you could justify it with and air shock, and you could throw in a...
  19. Unless it’s a ProFlex

    Unless it’s a ProFlex
  20. Replies
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    To be fair, engineering doesnít always get the...

    To be fair, engineering doesnít always get the final say.

    To give a non-bike example, the Porsche 911 used a semi-trailing arm rear suspension until the the 993 generation came out in the 90ís,...
  21. Replies
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    The only design with a fixed instant center is...

    The only design with a fixed instant center is single pivot (and ‘faux-bar’ if you want to consider that as separate). HL, ML, DW, VPP, etc. all have ‘virtual’ instant centers, and those centers will...
  22. Replies
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    Suppose you designed a single pivot bike, then...

    Suppose you designed a single pivot bike, then you designed a VPP, and a DW, and a Horst Link frame such that their instant centers all matched the pivot point of the single pivot bike at sag. You...
  23. Replies
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    Got it, misunderstood what you were getting at. ...

    Got it, misunderstood what you were getting at.

    It all comes back to the fact that they can all work pretty well if designed properly, and they can all work like shit if not.
  24. Replies
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    Iím only working on it if it includes Graphene as...

    Iím only working on it if it includes Graphene as well.
  25. Replies
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    So you’re saying bring back...

    So you’re saying bring back regressive/progressive leverage ratios and combine them with a new generation of shocks with position sensitive damping?:fmicon:
  26. Replies
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    Leverage ratio has come up, but the conversation...

    Leverage ratio has come up, but the conversation started with a discussion of whether Horst Link is any good compared to newer linkage designs, and thatís really looking at how the wheel moves...
  27. Replies
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    Leverage ratio curve is kind of independent of...

    Leverage ratio curve is kind of independent of the linkage design, so itís a bit of a different topic than has been discussed.

    That said, the falling-then-rising rate curve seems like one of those...
  28. Replies
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    Your school is better than mine. I’ll just say...

    Your school is better than mine. I’ll just say that I graduated from one of the Canadian ones.

    I did win an award for vehicle dynamics simulation work when I was in college, and then had a brief...
  29. Replies
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    I mean, the last two Pinkbike ‘Bike of the Year’...

    I mean, the last two Pinkbike ‘Bike of the Year’ bikes were the Norco Optic and Specialized Stumpjumper EVO, so by one metric, yes?

    I’d say the biggest advantage short links has is that the...
  30. Replies
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    Either your fuckiní with us, or theyíre already...

    Either your fuckiní with us, or theyíre already gone
  31. Replies
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    Pull aged cheddar out of the caves, drawing down...

    Pull aged cheddar out of the caves, drawing down the strategic reserves.
  32. Replies
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    Moneyís not the issue though. (This is the 2021...

    Moneyís not the issue though. (This is the 2021 Supply thread, right?)
  33. Replies
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    You should be able to fit 28c on a CAAD7, slick...

    You should be able to fit 28c on a CAAD7, slick though, no knobs at all.
  34. Replies
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    Didnít learn that well. After two years of...

    Didnít learn that well. After two years of wrenching I was switched to mostly doing sales.
  35. Replies
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    Hey, thatís me! (25 years ago...)

    Hey, thatís me! (25 years ago...)
  36. Replies
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    Thanks Beaver. Unfortunately Iím well into XL...

    Thanks Beaver. Unfortunately Iím well into XL territory, but hopefully someone else can make use of this intel.
  37. Replies
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    Know that I share your pain, but we will get...

    Know that I share your pain, but we will get through this.
  38. Replies
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    Iíve always started tubes at the valves which...

    Iíve always started tubes at the valves which generally helped tubes from getting pinched, but I thought that with tubeless you normally ended at the valve so that while youíre working the rest of...
  39. Replies
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    Talk about waiting... my current bike is a 2003...

    Talk about waiting... my current bike is a 2003 Cannondale Gemini. Well past due for a new bike.

    If I had of known last fall that it wouldnít come, I probably could have arranged for something...
  40. Replies
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    Ordered a Norco Optic C2 from the local shop back...

    Ordered a Norco Optic C2 from the local shop back in the fall. Got a call this morning saying itís not going to happen this year. Womp Womp.
  41. I certainly wouldnít claim that simply allowing...

    I certainly wouldnít claim that simply allowing more building is the be all and end all of good housing policy. But absolutely, allowing more housing to be built, and allowing high density housing to...
  42. Iím not sure I follow your argument. I agree that...

    Iím not sure I follow your argument. I agree that policy is the way, but as emcee explained, it needs to be policy that greatly expands the ability to build more housing.

    Once youíve reached a...
  43. emcee gets it, listen to him. The thing...

    emcee gets it, listen to him.



    The thing is, flipping only works if thereís a housing shortage. Build more and prices will stop increasing, and flipping is no longer lucrative.
  44. If youíre going to go though the effort, might as...

    If youíre going to go though the effort, might as well spring for some Brillat-Savarin?
  45. Replies
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    On the Zephyr lift at Northstar a couple years...

    On the Zephyr lift at Northstar a couple years ago early morning and the chair in front was full of racer kids, probably 9 or 10 year olds. Itís race day because they have their number bibs on.

    At...
  46. Replies
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    Engineer who knows thatís the more aero...

    Engineer who knows thatís the more aero orientation, style be damned!
  47. Replies
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    Surely if youíre shopping Eddie Bauer itís...

    Surely if youíre shopping Eddie Bauer itís because they make actual TALL sizes in most of their clothes, so no need to get an XL for length, get M/T or L/T. That said, the jacket youíd probably want...
  48. Thatís a ĎBaby Supporterí. For three months and...

    Thatís a ĎBaby Supporterí. For three months and older, and to be used walking or running.

    For biking, kids should be 1 year+, and need to be able to wear a helmet.
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    You should consider switching the Assegai and...

    You should consider switching the Assegai and Dissector around. Much more controllable and easier to pedal with the grippier tire on the front. Dissector front/Rekon rear provided that, but now...
  50. Replies
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    My van came with run-flats, no spare. When I...

    My van came with run-flats, no spare. When I needed to replace them I went with regular tires, and still no spare. I guess I like to live dangerously both on and off the bike.
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