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  1. nybike1971

    DH Fork Suspension Data

    I used linear potentiometers made by Active Sensors. I use stable numerical differentiation algorithms to extract velocity data from the position timecourse. Another option for sensors are LVDT; they are more expensive and require signal conditioning but are less susceptible to noise. I built...
  2. nybike1971

    DH Fork Suspension Data

    Darren, I have some data on a Boxxer sampled at 400Hz. It's probably not very interesting as I was just testing the equipment and not riding particularly hard. I will try to put the logger box on the DH bike this weekend at the Plattekill race with a worthy test pilot. I'll send you an email.
  3. nybike1971

    Want to build some new wheels, looking for rim suggestions.

    I gave them the benefit of the doubt after the first cracked rim on Porcupine Rim exactly for the reason you state. Even though it is a high volume tire, the MK II has very thin sidewalls and it was probably a poor choice even for preriding the course. The funny thing is that the rim cracked on...
  4. nybike1971

    Want to build some new wheels, looking for rim suggestions.

    My experience with the Light Bicycle carbon rims has been very disappointing. I built a set of their UST compatible 26in wide rims in August 2012 and the rear rim cracked while I was preriding the Moab Enduro race course down Porcupine Rim at the end of September. I had a Conti Mountain King II...
  5. nybike1971

    Forward-geometry is it the future?

    Doesn't that stem also end up lifting the front end quite a bit? It doesn't look like the shortened the head tube and especially compared to a low direct-mount stem the bars could end up more than an inch higher.
  6. nybike1971

    Yeti 303WC delivery date betting pool

    This is why:
  7. nybike1971

    Has anyone put a Boxxer on a dyno?

    I know what you are saying, I just didn't want to ask for too much from Darren. Any one of those measurements will give me the information I am looking for to make sure that the valve measurements I took are in the right ballpark. The taper of the low-speed compression needle is particularly...
  8. nybike1971

    Has anyone put a Boxxer on a dyno?

    Darren that would be awesome! Basically, I have measured the shim stack, compression base valve geometry, and taper of the needle to model the compression damper in ShimRestackor. I am trying to have a more quantitative approach to reshimming and tuning of this fork and suspension in general...
  9. nybike1971

    Has anyone put a Boxxer on a dyno?

    All i need is the scale on Udi's vertical axis to know if I am in the right ballpark. :D
  10. nybike1971

    Has anyone put a Boxxer on a dyno?

    I would like to know how well tuned my ReStackor model for the compression base valve of a Boxxer 35mm is. If anyone has a dyno run of a Boxxer 35mm in any recorded setting that they can share (I seem to remember SteveM mentioning these measurements) I would appreciate it. Cheers!
  11. nybike1971

    CCDB low and hi speed rebound.

    Wa-Aw makes some very good points for tuning the CCDB. I would add that if you don't have specific initial tune recommendations for your frame, the settings in the CCDB manual (stock settings an aftermarket CCDB is shipped with) are not a bad place to start. There is big difference between...
  12. nybike1971

    Fork set up: what´s better for dh?

    If your lsc is set wide open, you are not going to feel much at all from the hsc shim stack as most of the oil is flowing through the lsc port. Even full closed, the needle on the Boxxer is pretty blunt and doesn't really close down completely. A stiffer HSC shim stack will make things even more...
  13. nybike1971

    Why can't I...? (Offset Bushing Content)

    mm's are claimed to make a substantial difference when you are moving pivots around, not if you are sliding up and down the leverage curve. All you can do with offset bushings is affect where the shock stroke starts and ends along the leverage curve. You are not changing pivot position, so axle...
  14. nybike1971

    Cane Creek DBAir 2012 Video

    I have one coming on my new trail bike as well. Looking forward to trying it out!
  15. nybike1971

    CCDB Set-Up Tips?

    I agree, that's why I put Malcolm's words in quotes. I don't necessarily think that the CCDB achieves better traction than any other shock on the market. One thing that I really like about the CCDB is how sensitive it is, which to me is the main reason for that quiet feel of the rear end of the...
  16. nybike1971

    Riding DH in Vermont... In January (pics)

    Great shots of some really fun looking trails! I definitely need to spend more time exploring and riding trails in VT next season.
  17. nybike1971

    Boxxer WC / WC Keronite

    I have a 2010 damper so you'll probably need to tweak this a bit for the 2011 if there is less compression damping from the rebound check valve. Comparing the 2010 and 2011 compression stacks in Shim Restackor, the 2011 stack is almost 20% softer at medium and high speed than the 2010, without...
  18. nybike1971

    CCDB Set-Up Tips?

    I completely agree with Udi and Pslide, however Cane Creek in general tends to recommend higher damping and lower spring rates with significant preload to drive the LS rebound circuit. It comes down to their philosophy of shock actuation. I had a conversation with Malcolm when I was struggling...
  19. nybike1971

    Whiteface Mountain Bike Park plans for 2012

    Great to hear, Mike! I always look forward to Whiteface weekends and this year Jen and I had a chance to ride there in dusty conditions when we came up in August. What a treat! Keep up the good work, Luca
  20. nybike1971

    2011 freecaster dvd

    Don't get your hopes up; I found From the Inside Out to be a 30 minute long yawn carefully wrapped in the usual stunning videography of Anthill Productions. There are a couple of segments that stand out but overall it felt like "a look another flip-whip on an orange bike". Even though I had...