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The Kinlin are great rims for the money... however, for a track bike you carry around a pointless and heavy brake track... why not getting a disc specific rim that has no brake track? Something like Velocity Aileron or Pacenti SL 25? They are more expensive, but they have bigger volume at less weight and they come in 24/28/32 H.
My reviews
http://paolocoppo.drupalgardens.com/content/velocity-aileron-finally
http://paolocoppo.drupalgardens.com/content/getting-dirty-new-pacenti-sl-25
If you're planning to use 23c tyres, these might be similar at much cheaper cost.
http://www.ebay.co.uk/itm/Kinlin-XC-279-700c-23mm-Wide-Semi-Aero-Alloy-Road-Clincher-Rim-/111512157144?pt=UK_sportsleisure_cycling_bikeparts_SR&var=&hash=item19f6a47bd8