Chain clearance of frame with no tentioner

Discussion in 'Frame Mounted Engines' started by fatboy67, Jul 1, 2008.

  1. fatboy67

    fatboy67 Member

    Hi all
    I have searched and read up on this but can't quite find the answer I'm looking for
    I have now brought a new bike that has some adjustment on the back wheel. If I run no tentioner the chain clears the frame by about 5mm. I'm new to these bikes just wondering if the chain will slap around and cut into the frame or is that amount of clearance enough?? The frame is only Aluminium.
    It would be good to hear from others that are running with no chain tentioner.
     
    Last edited by a moderator: Dec 15, 2015

  2. HoughMade

    HoughMade Guest

    5mm is more than I have with the tensioner.
     
  3. fatboy67

    fatboy67 Member

    yer but the tentioner holds the chain more or less in place. I'm just wanting to know if I do it with out the tensioner, how much will the chain flap/move/slap around and will it start to wear a hole in the frame.
     
  4. HoughMade

    HoughMade Guest

    Only one way to find out...and just keep your eye on it.
     
  5. crazeehorse

    crazeehorse Member

    i took my tensioner off as well, the 415 chain that came with my kit, clears by about that amount, ( provided, as said above, that i check & adjust, if needed) before each ride. i changed to the 41 chain, (from tractor supply store) i noticed right off that the 41 chain is wider. it started to rub a bit, so i changed back to the 415 chain. but the 41 chain does make a great spare.i'm not sure if the master link from the 41 chain will work with the 415 chain, but if it will the links are 4.00 for a pack of 4.
     
  6. fatboy67

    fatboy67 Member

    The k910 bmx chain fits good. You need to buy 2 But here in Aus the is a bloke who sells them for $12 each. They are 1/2 x 3/16 real good chain

    Thanks to Boltsmissing and some others.
     
  7. fatboy67

    fatboy67 Member

    Yer I suppose I will just suck it and see. The only prob is, once you make the chain at the length for NO tensioner,, it's to sort to decide that you want to use the tensioner,, I think...............Haven't cut the chain as yet. I suppose I could keep the links and put them back.
     
  8. wildemere

    wildemere Member

    I use a piece of vinyl hose cable tied on the chain stay where it might rub when going over bumps.

    It keeps the frame nice and noise & wear down.
     
  9. fatboy67

    fatboy67 Member

    What is the chain stay??????????
     
  10. wildemere

    wildemere Member

  11. fatboy67

    fatboy67 Member

    My brain would have understood wrap some pvc tubing around the frame.
    What I might do is get some 1mm thick stainless sheet metal. A piece about 70mm long and wrap it around the chain stays Hahahah,,, and rivet it on.
    And when it looks like it might be close to wearing through put a new bit on.
    Who knows it ( the chain ) might not hit/scrap at all. I just have to wait and see.
     
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