Results 1 to 3 of 3
  1. #1
    mtbr member
    Reputation:
    Join Date
    Oct 2005
    Posts
    247

    Paging Derby for view on new UK Cotic Hemlock

    http://www.cotic.co.uk/product/hemlock.html

    Derby
    Another new bike to cast your accomplished eye over, this one is not a DW link copy, but the owner /designer is very aware of the antiSquat required that FS bikes can suffer from
    Thanks in advance.

  2. #2
    mtbr member
    Reputation: sdneal's Avatar
    Join Date
    Feb 2004
    Posts
    57
    Looks like an Ellsworth to me.

  3. #3
    www.derbyrims.com
    Reputation: derby's Avatar
    Join Date
    Jan 2004
    Posts
    6,788
    Quote Originally Posted by sdneal
    Looks like an Ellsworth to me.
    Yes, it appears closer to the earlier Turner design RFX and RFX-Light 5 inch travel (later called 5-Spot), which Ellsworth years later claimed to be his original design.

    Ellsworth actually was able to patent Turnerís prior design (certainly due to the understandable ignorance of over worked patent officials, and the lack of a very expensive legal challenge by Turner.) Turner has moved on and abandoned his earlier 4-bar design after testing the ICT design to be no different pedaling than monopivot and actually inferior in handling effects.

    And like a Turner and later ICT, this bike, the Hemlock, is as effective as having a monopivot at itís near-BB-pivot for pedaling squat. And it has a floating brake mount like ICT or Horst link where the braking pivot follows the IC, in this case less compressive and near neutral like most horst links.

    Notice on Ellsworth design versions of ICT that the drop-out pivot is as close to the axle as practical, nearly axle concentric. To comply within the ICT design limitation the drop-out pivot must be very closely aligned with the axle to near-BB-pivot line.

    Horst links with significantly lower dropout pivots do produce a virtual pedaling pivot far away from any physical pivot (although not as ideal in effects as the virtual pivot situation of a dw-Link).

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •