No , and I wouldn ' t know what the correct height would be . Other than some chain rub when the bike was new , the derailleur has shifted fine so I never suspected it could too high . How would I know what the appropriate height is ? I ' m genuinely curious , specifically what would derailleur height affect ? And I guess I should have said that several of the chain ' s teeth are dulling <| sep |> Our police also have guns that are standard issued . <| sep |> Hmm any thoughts on the Revgear Muay Thai Style Glove vs . the Venum Sharp Boxing Gloves ? The Rev Gear one is $ 20 cheaper with the 40 % off as opposed to the Venum one with 30 % off . I ' m in the market for a new pair for sparring and would like to take of Black Friday deals .