SHoulda posted this here in the first place.
I think I may have come up with a way to make a adjustable tensioner, that is cheap <$20 and can approx. double the life of the chain. all parts can be bought at an industrial supply.
![](http://w2.bikepics.com/pics/2007%5C03%5C11%5Cbikepics-827115-full.jpg)
picture is as close to scale as i could make it on this computer.
I have all the parts ordered, and they should be here this week.
The basic priniciple is to use a 1/4" drill and drill out from the inside of the tensioner cavity toward the bolt hole. Thread the new hole using an m8 tap.
cut off the old flange and screw in the new bolt, see picture.
the spring from the tensioner should slide over the the bolt and thus wont change the tension from stock. Also i am thinking that a nut on the inside and a jam nut should stabilize everything really well.
In theory if you cut the bolt so that it just sticks out of the tensioner cavity, you should double the life of the chain and tensioner set-up.
Along with the bend mod mentioned in another thread, we should be able to get on top of this thing. I think every 6k miles you go in and turn out the bolt, tighten the jam nut, and reset the tensioner, and wallah.
I will post picks on this mod and let you know all how it works.
Any input from the engineers in the group would b great.