J 
              Josh R.      Ingenious tensioner, that makes life so much easier. Long enough to manage tension at the extremes of an Avanti Pista EVO 2 dropout. Compact, light weight and precise. Cannot fault. Appears better quality than OEM axle ends too.
 P 
              PP      A great example of Velobike innovation. Upgrading the best available equipment better than you could imagine.
 L 
              L.azy      Before getting this widget fitted to Mavic Comete rear disc found I was in a never-ending battle trying to get the tension just right.
Fitting Velobike Mavic Comete Chain Tensioner to the Mavic Comete rear disc was simple requiring a couple of open-ended spanners and once fitted makes tensioning so ezzzyy.
Not a hint of wheel slip even after full gaz sprint training sessions and races.